xref: /frameworks/opt/net/wifi/tests/wifitests/src/com/android/server/wifi/WifiConfigManagerTest.java

/*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.server.wifi;

import static org.junit.Assert.*;
import static org.mockito.Mockito.*;

import android.annotation.Nullable;
import android.app.ActivityManager;
import android.app.test.MockAnswerUtil.AnswerWithArguments;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.net.IpConfiguration;
import android.net.MacAddress;
import android.net.wifi.ScanResult;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiConfiguration.NetworkSelectionStatus;
import android.net.wifi.WifiEnterpriseConfig;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.net.wifi.WifiScanner;
import android.os.Handler;
import android.os.Process;
import android.os.UserHandle;
import android.os.UserManager;
import android.os.test.TestLooper;
import android.telephony.SubscriptionInfo;
import android.telephony.SubscriptionManager;
import android.telephony.TelephonyManager;
import android.text.TextUtils;
import android.util.ArrayMap;
import android.util.Pair;

import androidx.test.filters.SmallTest;

import com.android.dx.mockito.inline.extended.ExtendedMockito;
import com.android.server.wifi.WifiScoreCard.PerNetwork;
import com.android.server.wifi.proto.nano.WifiMetricsProto.UserActionEvent;
import com.android.server.wifi.util.LruConnectionTracker;
import com.android.server.wifi.util.WifiPermissionsUtil;
import com.android.server.wifi.util.WifiPermissionsWrapper;
import com.android.wifi.resources.R;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.mockito.ArgumentCaptor;
import org.mockito.InOrder;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.mockito.MockitoSession;
import org.mockito.quality.Strictness;

import java.io.FileDescriptor;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.util.Set;

/**
 * Unit tests for {@link com.android.server.wifi.WifiConfigManager}.
 */
@SmallTest
public class WifiConfigManagerTest extends WifiBaseTest {

    private static final String TEST_SSID = "\"test_ssid\"";
    private static final String TEST_BSSID = "0a:08:5c:67:89:00";
    private static final long TEST_WALLCLOCK_CREATION_TIME_MILLIS = 9845637;
    private static final long TEST_WALLCLOCK_UPDATE_TIME_MILLIS = 75455637;
    private static final long TEST_ELAPSED_UPDATE_NETWORK_SELECTION_TIME_MILLIS = 29457631;
    private static final int TEST_CREATOR_UID = WifiConfigurationTestUtil.TEST_UID;
    private static final int TEST_NO_PERM_UID = 7;
    private static final int TEST_UPDATE_UID = 4;
    private static final int TEST_SYSUI_UID = 56;
    private static final int TEST_DEFAULT_USER = UserHandle.USER_SYSTEM;
    private static final int TEST_MAX_NUM_ACTIVE_CHANNELS_FOR_PARTIAL_SCAN = 5;
    private static final Integer[] TEST_FREQ_LIST = {2400, 2450, 5150, 5175, 5650};
    private static final String TEST_CREATOR_NAME = "com.wificonfigmanager.creator";
    private static final String TEST_UPDATE_NAME = "com.wificonfigmanager.update";
    private static final String TEST_NO_PERM_NAME = "com.wificonfigmanager.noperm";
    private static final String TEST_WIFI_NAME = "android.uid.system";
    private static final String TEST_DEFAULT_GW_MAC_ADDRESS = "0f:67:ad:ef:09:34";
    private static final String TEST_STATIC_PROXY_HOST_1 = "192.168.48.1";
    private static final int    TEST_STATIC_PROXY_PORT_1 = 8000;
    private static final String TEST_STATIC_PROXY_EXCLUSION_LIST_1 = "";
    private static final String TEST_PAC_PROXY_LOCATION_1 = "http://bleh";
    private static final String TEST_STATIC_PROXY_HOST_2 = "192.168.1.1";
    private static final int    TEST_STATIC_PROXY_PORT_2 = 3000;
    private static final String TEST_STATIC_PROXY_EXCLUSION_LIST_2 = "";
    private static final String TEST_PAC_PROXY_LOCATION_2 = "http://blah";
    private static final int TEST_RSSI = -50;
    private static final int TEST_FREQUENCY_1 = 2412;
    private static final int MAX_BLOCKED_BSSID_PER_NETWORK = 10;
    private static final MacAddress TEST_RANDOMIZED_MAC =
            MacAddress.fromString("d2:11:19:34:a5:20");
    private static final int DATA_SUBID = 1;
    private static final String SYSUI_PACKAGE_NAME = "com.android.systemui";

    @Mock private Context mContext;
    @Mock private Clock mClock;
    @Mock private UserManager mUserManager;
    @Mock private SubscriptionManager mSubscriptionManager;
    @Mock private TelephonyManager mTelephonyManager;
    @Mock private TelephonyManager mDataTelephonyManager;
    @Mock private WifiKeyStore mWifiKeyStore;
    @Mock private WifiConfigStore mWifiConfigStore;
    @Mock private PackageManager mPackageManager;
    @Mock private WifiPermissionsUtil mWifiPermissionsUtil;
    @Mock private WifiPermissionsWrapper mWifiPermissionsWrapper;
    @Mock private WifiInjector mWifiInjector;
    @Mock private WifiLastResortWatchdog mWifiLastResortWatchdog;
    @Mock private NetworkListSharedStoreData mNetworkListSharedStoreData;
    @Mock private NetworkListUserStoreData mNetworkListUserStoreData;
    @Mock private RandomizedMacStoreData mRandomizedMacStoreData;
    @Mock private WifiConfigManager.OnNetworkUpdateListener mWcmListener;
    @Mock private FrameworkFacade mFrameworkFacade;
    @Mock private DeviceConfigFacade mDeviceConfigFacade;
    @Mock private MacAddressUtil mMacAddressUtil;
    @Mock private BssidBlocklistMonitor mBssidBlocklistMonitor;
    @Mock private WifiNetworkSuggestionsManager mWifiNetworkSuggestionsManager;
    @Mock private WifiScoreCard mWifiScoreCard;
    @Mock private PerNetwork mPerNetwork;
    @Mock private WifiMetrics mWifiMetrics;
    private LruConnectionTracker mLruConnectionTracker;

    private MockResources mResources;
    private InOrder mContextConfigStoreMockOrder;
    private InOrder mNetworkListStoreDataMockOrder;
    private WifiConfigManager mWifiConfigManager;
    private boolean mStoreReadTriggered = false;
    private TestLooper mLooper = new TestLooper();
    private MockitoSession mSession;
    private WifiCarrierInfoManager mWifiCarrierInfoManager;


    /**
     * Setup the mocks and an instance of WifiConfigManager before each test.
     */
    @Before
    public void setUp() throws Exception {
        MockitoAnnotations.initMocks(this);

        // Set up the inorder for verifications. This is needed to verify that the broadcasts,
        // store writes for network updates followed by network additions are in the expected order.
        mContextConfigStoreMockOrder = inOrder(mContext, mWifiConfigStore);
        mNetworkListStoreDataMockOrder =
                inOrder(mNetworkListSharedStoreData, mNetworkListUserStoreData);

        // Set up the package name stuff & permission override.
        when(mContext.getPackageManager()).thenReturn(mPackageManager);
        mResources = new MockResources();
        mResources.setBoolean(
                R.bool.config_wifi_only_link_same_credential_configurations, true);
        mResources.setInteger(
                R.integer.config_wifi_framework_associated_partial_scan_max_num_active_channels,
                TEST_MAX_NUM_ACTIVE_CHANNELS_FOR_PARTIAL_SCAN);
        mResources.setBoolean(R.bool.config_wifi_connected_mac_randomization_supported, true);
        mResources.setInteger(R.integer.config_wifiMaxPnoSsidCount, 16);
        when(mContext.getResources()).thenReturn(mResources);

        // Setup UserManager profiles for the default user.
        setupUserProfiles(TEST_DEFAULT_USER);

        doAnswer(new AnswerWithArguments() {
            public String answer(int uid) throws Exception {
                if (uid == TEST_CREATOR_UID) {
                    return TEST_CREATOR_NAME;
                } else if (uid == TEST_UPDATE_UID) {
                    return TEST_UPDATE_NAME;
                } else if (uid == TEST_SYSUI_UID) {
                    return SYSUI_PACKAGE_NAME;
                } else if (uid == TEST_NO_PERM_UID) {
                    return TEST_NO_PERM_NAME;
                } else if (uid == Process.WIFI_UID) {
                    return TEST_WIFI_NAME;
                }
                fail("Unexpected UID: " + uid);
                return "";
            }
        }).when(mPackageManager).getNameForUid(anyInt());

        when(mContext.getSystemService(ActivityManager.class))
                .thenReturn(mock(ActivityManager.class));

        when(mWifiKeyStore
                .updateNetworkKeys(any(WifiConfiguration.class), any()))
                .thenReturn(true);

        setupStoreDataForRead(new ArrayList<>(), new ArrayList<>());

        when(mWifiPermissionsUtil.checkNetworkSettingsPermission(anyInt())).thenReturn(true);
        when(mWifiPermissionsUtil.isDeviceOwner(anyInt(), any())).thenReturn(false);
        when(mWifiPermissionsUtil.isProfileOwner(anyInt(), any())).thenReturn(false);
        when(mWifiInjector.getWifiNetworkSuggestionsManager())
                .thenReturn(mWifiNetworkSuggestionsManager);
        when(mWifiInjector.getBssidBlocklistMonitor()).thenReturn(mBssidBlocklistMonitor);
        when(mWifiInjector.getWifiLastResortWatchdog()).thenReturn(mWifiLastResortWatchdog);
        when(mWifiInjector.getWifiLastResortWatchdog().shouldIgnoreSsidUpdate())
                .thenReturn(false);
        when(mWifiInjector.getMacAddressUtil()).thenReturn(mMacAddressUtil);
        when(mWifiInjector.getWifiMetrics()).thenReturn(mWifiMetrics);
        when(mMacAddressUtil.calculatePersistentMac(any(), any())).thenReturn(TEST_RANDOMIZED_MAC);
        when(mWifiScoreCard.lookupNetwork(any())).thenReturn(mPerNetwork);

        mWifiCarrierInfoManager = new WifiCarrierInfoManager(mTelephonyManager,
                mSubscriptionManager, mWifiInjector, mock(FrameworkFacade.class),
                mock(WifiContext.class), mock(WifiConfigStore.class), mock(Handler.class),
                mWifiMetrics);
        mLruConnectionTracker = new LruConnectionTracker(100, mContext);
        createWifiConfigManager();
        mWifiConfigManager.addOnNetworkUpdateListener(mWcmListener);
        // static mocking
        mSession = ExtendedMockito.mockitoSession()
                .mockStatic(WifiConfigStore.class, withSettings().lenient())
                .strictness(Strictness.LENIENT)
                .startMocking();
        when(WifiConfigStore.createUserFiles(anyInt(), anyBoolean())).thenReturn(mock(List.class));
        when(mTelephonyManager.createForSubscriptionId(anyInt())).thenReturn(mDataTelephonyManager);
    }

    /**
     * Called after each test
     */
    @After
    public void cleanup() {
        validateMockitoUsage();
        if (mSession != null) {
            mSession.finishMocking();
        }
    }

    /**
     * Verifies that network retrieval via
     * {@link WifiConfigManager#getConfiguredNetworks()} and
     * {@link WifiConfigManager#getConfiguredNetworksWithPasswords()} works even if we have not
     * yet loaded data from store.
     */
    @Test
    public void testGetConfiguredNetworksBeforeLoadFromStore() {
        assertTrue(mWifiConfigManager.getConfiguredNetworks().isEmpty());
        assertTrue(mWifiConfigManager.getConfiguredNetworksWithPasswords().isEmpty());
    }

    /**
     * Verifies that network addition via
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)} fails if we have not
     * yet loaded data from store.
     */
    @Test
    public void testAddNetworkIsRejectedBeforeLoadFromStore() {
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        assertFalse(
                mWifiConfigManager.addOrUpdateNetwork(openNetwork, TEST_CREATOR_UID).isSuccess());
    }

    /**
     * Verifies the {@link WifiConfigManager#saveToStore(boolean)} is rejected until the store has
     * been read first using {@link WifiConfigManager#loadFromStore()}.
     */
    @Test
    public void testSaveToStoreIsRejectedBeforeLoadFromStore() throws Exception {
        assertFalse(mWifiConfigManager.saveToStore(true));
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).write(anyBoolean());

        assertTrue(mWifiConfigManager.loadFromStore());
        mContextConfigStoreMockOrder.verify(mWifiConfigStore).read();

        assertTrue(mWifiConfigManager.saveToStore(true));
        mContextConfigStoreMockOrder.verify(mWifiConfigStore).write(anyBoolean());
    }

    /**
     * Verify that a randomized MAC address is generated even if the KeyStore operation fails.
     */
    @Test
    public void testRandomizedMacIsGeneratedEvenIfKeyStoreFails() {
        when(mMacAddressUtil.calculatePersistentMac(any(), any())).thenReturn(null);

        // Try adding a network.
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(openNetwork);
        verifyAddNetworkToWifiConfigManager(openNetwork);
        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();

        // Verify that we have attempted to generate the MAC address twice (1 retry)
        verify(mMacAddressUtil, times(2)).calculatePersistentMac(any(), any());
        assertEquals(1, retrievedNetworks.size());

        // Verify that despite KeyStore returning null, we are still getting a valid MAC address.
        assertNotEquals(WifiInfo.DEFAULT_MAC_ADDRESS,
                retrievedNetworks.get(0).getRandomizedMacAddress().toString());
    }

    /**
     * Verifies the addition of a single network using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)}
     */
    @Test
    public void testAddSingleOpenNetwork() {
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(openNetwork);

        verifyAddNetworkToWifiConfigManager(openNetwork);

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);
        // Ensure that the newly added network is disabled.
        assertEquals(WifiConfiguration.Status.DISABLED, retrievedNetworks.get(0).status);
    }

    /**
     * Verifies the addition of a WAPI-PSK network using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)}
     */
    @Test
    public void testAddWapiPskNetwork() {
        WifiConfiguration wapiPskNetwork = WifiConfigurationTestUtil.createWapiPskNetwork();
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(wapiPskNetwork);

        verifyAddNetworkToWifiConfigManager(wapiPskNetwork);

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);
        // Ensure that the newly added network is disabled.
        assertEquals(WifiConfiguration.Status.DISABLED, retrievedNetworks.get(0).status);
    }

    /**
     * Verifies the addition of a WAPI-PSK network with hex bytes using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)}
     */
    @Test
    public void testAddWapiPskHexNetwork() {
        WifiConfiguration wapiPskNetwork = WifiConfigurationTestUtil.createWapiPskNetwork();
        wapiPskNetwork.preSharedKey =
            "123456780abcdef0123456780abcdef0";
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(wapiPskNetwork);

        verifyAddNetworkToWifiConfigManager(wapiPskNetwork);

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);
        // Ensure that the newly added network is disabled.
        assertEquals(WifiConfiguration.Status.DISABLED, retrievedNetworks.get(0).status);
    }

    /**
     * Verifies the addition of a WAPI-CERT network using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)}
     */
    @Test
    public void testAddWapiCertNetwork() {
        WifiConfiguration wapiCertNetwork = WifiConfigurationTestUtil.createWapiCertNetwork();
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(wapiCertNetwork);

        verifyAddNetworkToWifiConfigManager(wapiCertNetwork);

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);
        // Ensure that the newly added network is disabled.
        assertEquals(WifiConfiguration.Status.DISABLED, retrievedNetworks.get(0).status);
    }

    /**
     * Verifies the addition of a single network when the corresponding ephemeral network exists.
     */
    @Test
    public void testAddSingleOpenNetworkWhenCorrespondingEphemeralNetworkExists() throws Exception {
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(openNetwork);
        WifiConfiguration ephemeralNetwork = new WifiConfiguration(openNetwork);
        ephemeralNetwork.ephemeral = true;

        verifyAddEphemeralNetworkToWifiConfigManager(ephemeralNetwork);

        NetworkUpdateResult result = addNetworkToWifiConfigManager(openNetwork);
        assertTrue(result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID);
        assertTrue(result.isNewNetwork());

        verifyNetworkRemoveBroadcast();
        verifyNetworkAddBroadcast();

        // Verify that the config store write was triggered with this new configuration.
        verifyNetworkInConfigStoreData(openNetwork);

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);

        // Ensure that the newly added network is disabled.
        assertEquals(WifiConfiguration.Status.DISABLED, retrievedNetworks.get(0).status);
    }

    /**
     * Verifies the addition of an ephemeral network when the corresponding ephemeral network
     * exists.
     */
    @Test
    public void testAddEphemeralNetworkWhenCorrespondingEphemeralNetworkExists() throws Exception {
        WifiConfiguration ephemeralNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        ephemeralNetwork.ephemeral = true;
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(ephemeralNetwork);

        WifiConfiguration ephemeralNetwork2 = new WifiConfiguration(ephemeralNetwork);
        verifyAddEphemeralNetworkToWifiConfigManager(ephemeralNetwork);

        NetworkUpdateResult result = addNetworkToWifiConfigManager(ephemeralNetwork2);
        assertTrue(result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID);
        verifyNetworkUpdateBroadcast();

        // Ensure that the write was not invoked for ephemeral network addition.
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).write(anyBoolean());

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);
    }

    /**
     * Verifies when adding a new network with already saved MAC, the saved MAC gets set to the
     * internal WifiConfiguration.
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)}
     */
    @Test
    public void testAddingNetworkWithMatchingMacAddressOverridesField() {
        int prevMappingSize = mWifiConfigManager.getRandomizedMacAddressMappingSize();
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        Map<String, String> randomizedMacAddressMapping = new HashMap<>();
        final String randMac = "12:23:34:45:56:67";
        randomizedMacAddressMapping.put(openNetwork.getKey(), randMac);
        assertNotEquals(randMac, openNetwork.getRandomizedMacAddress());
        when(mRandomizedMacStoreData.getMacMapping()).thenReturn(randomizedMacAddressMapping);

        // reads XML data storage
        //mWifiConfigManager.loadFromStore();
        verifyAddNetworkToWifiConfigManager(openNetwork);

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        assertEquals(randMac, retrievedNetworks.get(0).getRandomizedMacAddress().toString());
        // Verify that for networks that we already have randomizedMacAddressMapping saved
        // we are still correctly writing into the WifiConfigStore.
        assertEquals(prevMappingSize + 1, mWifiConfigManager.getRandomizedMacAddressMappingSize());
    }

    /**
     * Verifies that when a network is added, removed, and then added back again, its randomized
     * MAC address doesn't change.
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)}
     */
    @Test
    public void testRandomizedMacAddressIsPersistedOverForgetNetwork() {
        int prevMappingSize = mWifiConfigManager.getRandomizedMacAddressMappingSize();
        // Create and add an open network
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        verifyAddNetworkToWifiConfigManager(openNetwork);
        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();

        // Gets the randomized MAC address of the network added.
        final String randMac = retrievedNetworks.get(0).getRandomizedMacAddress().toString();
        // This MAC should be different from the default, uninitialized randomized MAC.
        assertNotEquals(openNetwork.getRandomizedMacAddress().toString(), randMac);

        // Remove the added network
        verifyRemoveNetworkFromWifiConfigManager(openNetwork);
        assertTrue(mWifiConfigManager.getConfiguredNetworks().isEmpty());

        // Adds the network back again and verify randomized MAC address stays the same.
        verifyAddNetworkToWifiConfigManager(openNetwork);
        retrievedNetworks = mWifiConfigManager.getConfiguredNetworksWithPasswords();
        assertEquals(randMac, retrievedNetworks.get(0).getRandomizedMacAddress().toString());
        // Verify that we are no longer persisting the randomized MAC address with WifiConfigStore.
        assertEquals(prevMappingSize, mWifiConfigManager.getRandomizedMacAddressMappingSize());
    }

    /**
     * Verifies that when a network is read from xml storage, it is assigned a randomized MAC
     * address if it doesn't have one yet. Then try removing the network and then add it back
     * again and verify the randomized MAC didn't change.
     */
    @Test
    public void testRandomizedMacAddressIsGeneratedForConfigurationReadFromStore()
            throws Exception {
        // Create and add an open network
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        final String defaultMac = openNetwork.getRandomizedMacAddress().toString();
        List<WifiConfiguration> sharedConfigList = new ArrayList<>();
        sharedConfigList.add(openNetwork);

        // Setup xml storage
        setupStoreDataForRead(sharedConfigList, new ArrayList<>());
        assertTrue(mWifiConfigManager.loadFromStore());
        verify(mWifiConfigStore).read();

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        // Gets the randomized MAC address of the network added.
        final String randMac = retrievedNetworks.get(0).getRandomizedMacAddress().toString();
        // This MAC should be different from the default, uninitialized randomized MAC.
        assertNotEquals(defaultMac, randMac);

        assertTrue(mWifiConfigManager.removeNetwork(
                openNetwork.networkId, TEST_CREATOR_UID, TEST_CREATOR_NAME));
        assertTrue(mWifiConfigManager.getConfiguredNetworks().isEmpty());

        // Adds the network back again and verify randomized MAC address stays the same.
        mWifiConfigManager.addOrUpdateNetwork(openNetwork, TEST_CREATOR_UID);
        retrievedNetworks = mWifiConfigManager.getConfiguredNetworksWithPasswords();
        assertEquals(randMac, retrievedNetworks.get(0).getRandomizedMacAddress().toString());
    }

    /**
     * Verifies the modification of a single network using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)}
     */
    @Test
    public void testUpdateSingleOpenNetwork() {
        ArgumentCaptor<WifiConfiguration> wifiConfigCaptor =
                ArgumentCaptor.forClass(WifiConfiguration.class);
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(openNetwork);

        verifyAddNetworkToWifiConfigManager(openNetwork);
        verify(mWcmListener).onNetworkAdded(wifiConfigCaptor.capture());
        assertEquals(openNetwork.networkId, wifiConfigCaptor.getValue().networkId);
        reset(mWcmListener);

        // Now change BSSID for the network.
        assertAndSetNetworkBSSID(openNetwork, TEST_BSSID);
        // Change the trusted bit.
        openNetwork.trusted = false;
        verifyUpdateNetworkToWifiConfigManagerWithoutIpChange(openNetwork);

        // Now verify that the modification has been effective.
        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);
        verify(mWcmListener).onNetworkUpdated(
                wifiConfigCaptor.capture(), wifiConfigCaptor.capture());
        WifiConfiguration newConfig = wifiConfigCaptor.getAllValues().get(1);
        WifiConfiguration oldConfig = wifiConfigCaptor.getAllValues().get(0);
        assertEquals(openNetwork.networkId, newConfig.networkId);
        assertFalse(newConfig.trusted);
        assertEquals(TEST_BSSID, newConfig.BSSID);
        assertEquals(openNetwork.networkId, oldConfig.networkId);
        assertTrue(oldConfig.trusted);
        assertNull(oldConfig.BSSID);
    }

    /**
     * Verifies the modification of a single network will remove its bssid from
     * the blocklist.
     */
    @Test
    public void testUpdateSingleOpenNetworkInBlockList() {
        ArgumentCaptor<WifiConfiguration> wifiConfigCaptor =
                ArgumentCaptor.forClass(WifiConfiguration.class);
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(openNetwork);

        verifyAddNetworkToWifiConfigManager(openNetwork);
        verify(mWcmListener).onNetworkAdded(wifiConfigCaptor.capture());
        assertEquals(openNetwork.networkId, wifiConfigCaptor.getValue().networkId);
        reset(mWcmListener);

        // mock the simplest bssid block list
        Map<String, String> mBssidStatusMap = new ArrayMap<>();
        doAnswer(new AnswerWithArguments() {
            public void answer(String ssid) {
                mBssidStatusMap.entrySet().removeIf(e -> e.getValue().equals(ssid));
            }
        }).when(mBssidBlocklistMonitor).clearBssidBlocklistForSsid(
                anyString());
        doAnswer(new AnswerWithArguments() {
            public int answer(String ssid) {
                return (int) mBssidStatusMap.entrySet().stream()
                        .filter(e -> e.getValue().equals(ssid)).count();
            }
        }).when(mBssidBlocklistMonitor).getNumBlockedBssidsForSsid(
                anyString());
        // add bssid to the blocklist
        mBssidStatusMap.put(TEST_BSSID, openNetwork.SSID);
        mBssidStatusMap.put("aa:bb:cc:dd:ee:ff", openNetwork.SSID);

        // Now change BSSID for the network.
        assertAndSetNetworkBSSID(openNetwork, TEST_BSSID);
        // Change the trusted bit.
        openNetwork.trusted = false;
        verifyUpdateNetworkToWifiConfigManagerWithoutIpChange(openNetwork);

        // Now verify that the modification has been effective.
        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);
        verify(mWcmListener).onNetworkUpdated(
                wifiConfigCaptor.capture(), wifiConfigCaptor.capture());
        WifiConfiguration newConfig = wifiConfigCaptor.getAllValues().get(1);
        WifiConfiguration oldConfig = wifiConfigCaptor.getAllValues().get(0);
        assertEquals(openNetwork.networkId, newConfig.networkId);
        assertFalse(newConfig.trusted);
        assertEquals(TEST_BSSID, newConfig.BSSID);
        assertEquals(openNetwork.networkId, oldConfig.networkId);
        assertTrue(oldConfig.trusted);
        assertNull(oldConfig.BSSID);

        assertEquals(0, mBssidBlocklistMonitor.getNumBlockedBssidsForSsid(openNetwork.SSID));
    }

    /**
     * Verifies that the device owner could modify other other fields in the Wificonfiguration
     * but not the macRandomizationSetting field.
     */
    @Test
    public void testCannotUpdateMacRandomizationSettingWithoutPermission() {
        ArgumentCaptor<WifiConfiguration> wifiConfigCaptor =
                ArgumentCaptor.forClass(WifiConfiguration.class);
        when(mWifiPermissionsUtil.checkNetworkSettingsPermission(anyInt())).thenReturn(false);
        when(mWifiPermissionsUtil.checkNetworkSetupWizardPermission(anyInt())).thenReturn(false);
        when(mWifiPermissionsUtil.isDeviceOwner(anyInt(), any())).thenReturn(true);
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        openNetwork.macRandomizationSetting = WifiConfiguration.RANDOMIZATION_PERSISTENT;

        verifyAddNetworkToWifiConfigManager(openNetwork);
        verify(mWcmListener).onNetworkAdded(wifiConfigCaptor.capture());
        assertEquals(openNetwork.networkId, wifiConfigCaptor.getValue().networkId);
        reset(mWcmListener);

        // Change BSSID for the network and verify success
        assertAndSetNetworkBSSID(openNetwork, TEST_BSSID);
        NetworkUpdateResult networkUpdateResult = updateNetworkToWifiConfigManager(openNetwork);
        assertNotEquals(WifiConfiguration.INVALID_NETWORK_ID, networkUpdateResult.getNetworkId());

        // Now change the macRandomizationSetting and verify failure
        openNetwork.macRandomizationSetting = WifiConfiguration.RANDOMIZATION_NONE;
        networkUpdateResult = updateNetworkToWifiConfigManager(openNetwork);
        assertEquals(WifiConfiguration.INVALID_NETWORK_ID, networkUpdateResult.getNetworkId());
    }

    /**
     * Verifies that mac randomization settings could be modified by a caller with NETWORK_SETTINGS
     * permission.
     */
    @Test
    public void testCanUpdateMacRandomizationSettingWithNetworkSettingPermission() {
        ArgumentCaptor<WifiConfiguration> wifiConfigCaptor =
                ArgumentCaptor.forClass(WifiConfiguration.class);
        when(mWifiPermissionsUtil.checkNetworkSetupWizardPermission(anyInt())).thenReturn(false);
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        openNetwork.macRandomizationSetting = WifiConfiguration.RANDOMIZATION_PERSISTENT;
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(openNetwork);

        verifyAddNetworkToWifiConfigManager(openNetwork);
        // Verify user action event is not logged when the network is added
        verify(mWifiMetrics, never()).logUserActionEvent(anyInt(), anyBoolean(), anyBoolean());
        verify(mWcmListener).onNetworkAdded(wifiConfigCaptor.capture());
        assertEquals(openNetwork.networkId, wifiConfigCaptor.getValue().networkId);
        reset(mWcmListener);

        // Now change the macRandomizationSetting and verify success
        openNetwork.macRandomizationSetting = WifiConfiguration.RANDOMIZATION_NONE;
        NetworkUpdateResult networkUpdateResult = updateNetworkToWifiConfigManager(openNetwork);
        assertNotEquals(WifiConfiguration.INVALID_NETWORK_ID, networkUpdateResult.getNetworkId());
        verify(mWifiMetrics).logUserActionEvent(
                UserActionEvent.EVENT_CONFIGURE_MAC_RANDOMIZATION_OFF, openNetwork.networkId);

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);
    }

    /**
     * Verifies that mac randomization settings could be modified by a caller with
     * NETWORK_SETUP_WIZARD permission.
     */
    @Test
    public void testCanUpdateMacRandomizationSettingWithSetupWizardPermission() {
        ArgumentCaptor<WifiConfiguration> wifiConfigCaptor =
                ArgumentCaptor.forClass(WifiConfiguration.class);
        when(mWifiPermissionsUtil.checkNetworkSettingsPermission(anyInt())).thenReturn(false);
        when(mWifiPermissionsUtil.checkNetworkSetupWizardPermission(anyInt())).thenReturn(true);
        when(mWifiPermissionsUtil.isDeviceOwner(anyInt(), any())).thenReturn(true);
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        openNetwork.macRandomizationSetting = WifiConfiguration.RANDOMIZATION_PERSISTENT;
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(openNetwork);

        verifyAddNetworkToWifiConfigManager(openNetwork);
        verify(mWcmListener).onNetworkAdded(wifiConfigCaptor.capture());
        assertEquals(openNetwork.networkId, wifiConfigCaptor.getValue().networkId);
        reset(mWcmListener);

        // Now change the macRandomizationSetting and verify success
        openNetwork.macRandomizationSetting = WifiConfiguration.RANDOMIZATION_NONE;
        NetworkUpdateResult networkUpdateResult = updateNetworkToWifiConfigManager(openNetwork);
        assertNotEquals(WifiConfiguration.INVALID_NETWORK_ID, networkUpdateResult.getNetworkId());

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);
    }

    /**
     * Verify that the mac randomization setting could be modified by the creator of a passpoint
     * network.
     */
    @Test
    public void testCanUpdateMacRandomizationSettingWithPasspointCreatorUid() throws Exception {
        ArgumentCaptor<WifiConfiguration> wifiConfigCaptor =
                ArgumentCaptor.forClass(WifiConfiguration.class);
        when(mWifiPermissionsUtil.checkNetworkSettingsPermission(anyInt())).thenReturn(false);
        when(mWifiPermissionsUtil.checkNetworkSetupWizardPermission(anyInt())).thenReturn(false);
        when(mWifiPermissionsUtil.isDeviceOwner(anyInt(), any())).thenReturn(false);
        WifiConfiguration passpointNetwork = WifiConfigurationTestUtil.createPasspointNetwork();
        // Disable MAC randomization and verify this is added in successfully.
        passpointNetwork.macRandomizationSetting = WifiConfiguration.RANDOMIZATION_NONE;
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(passpointNetwork);

        verifyAddPasspointNetworkToWifiConfigManager(passpointNetwork);
        // Ensure that configured network list is not empty.
        assertFalse(mWifiConfigManager.getConfiguredNetworks().isEmpty());

        // Ensure that this is not returned in the saved network list.
        assertTrue(mWifiConfigManager.getSavedNetworks(Process.WIFI_UID).isEmpty());
        verify(mWcmListener).onNetworkAdded(wifiConfigCaptor.capture());
        assertEquals(passpointNetwork.networkId, wifiConfigCaptor.getValue().networkId);

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);
    }


    /**
     * Verifies the addition of a single ephemeral network using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)} and verifies that
     * the {@link WifiConfigManager#getSavedNetworks(int)} does not return this network.
     */
    @Test
    public void testAddSingleEphemeralNetwork() throws Exception {
        ArgumentCaptor<WifiConfiguration> wifiConfigCaptor =
                ArgumentCaptor.forClass(WifiConfiguration.class);
        WifiConfiguration ephemeralNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        ephemeralNetwork.ephemeral = true;
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(ephemeralNetwork);

        verifyAddEphemeralNetworkToWifiConfigManager(ephemeralNetwork);

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);

        // Ensure that this is not returned in the saved network list.
        assertTrue(mWifiConfigManager.getSavedNetworks(Process.WIFI_UID).isEmpty());
        verify(mWcmListener).onNetworkAdded(wifiConfigCaptor.capture());
        assertEquals(ephemeralNetwork.networkId, wifiConfigCaptor.getValue().networkId);
    }

    private void addSinglePasspointNetwork(boolean isHomeProviderNetwork) throws Exception {
        ArgumentCaptor<WifiConfiguration> wifiConfigCaptor =
                ArgumentCaptor.forClass(WifiConfiguration.class);
        WifiConfiguration passpointNetwork = WifiConfigurationTestUtil.createPasspointNetwork();
        passpointNetwork.isHomeProviderNetwork = isHomeProviderNetwork;

        verifyAddPasspointNetworkToWifiConfigManager(passpointNetwork);
        // Ensure that configured network list is not empty.
        assertFalse(mWifiConfigManager.getConfiguredNetworks().isEmpty());

        // Ensure that this is not returned in the saved network list.
        assertTrue(mWifiConfigManager.getSavedNetworks(Process.WIFI_UID).isEmpty());
        verify(mWcmListener).onNetworkAdded(wifiConfigCaptor.capture());
        assertEquals(passpointNetwork.networkId, wifiConfigCaptor.getValue().networkId);
        assertEquals(passpointNetwork.isHomeProviderNetwork,
                wifiConfigCaptor.getValue().isHomeProviderNetwork);
    }

    /**
     * Verifies the addition of a single home Passpoint network using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)} and verifies that
     * the {@link WifiConfigManager#getSavedNetworks(int)} ()} does not return this network.
     */
    @Test
    public void testAddSingleHomePasspointNetwork() throws Exception {
        addSinglePasspointNetwork(true);
    }

    /**
     * Verifies the addition of a single roaming Passpoint network using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)} and verifies that
     * the {@link WifiConfigManager#getSavedNetworks(int)} ()} does not return this network.
     */
    @Test
    public void testAddSingleRoamingPasspointNetwork() throws Exception {
        addSinglePasspointNetwork(false);
    }

    /**
     * Verifies the addition of 2 networks (1 normal and 1 ephemeral) using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)} and ensures that
     * the ephemeral network configuration is not persisted in config store.
     */
    @Test
    public void testAddMultipleNetworksAndEnsureEphemeralNetworkNotPersisted() {
        WifiConfiguration ephemeralNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        ephemeralNetwork.ephemeral = true;
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();

        assertTrue(addNetworkToWifiConfigManager(ephemeralNetwork).isSuccess());
        assertTrue(addNetworkToWifiConfigManager(openNetwork).isSuccess());

        // The open network addition should trigger a store write.
        Pair<List<WifiConfiguration>, List<WifiConfiguration>> networkListStoreData =
                captureWriteNetworksListStoreData();
        List<WifiConfiguration> networkList = new ArrayList<>();
        networkList.addAll(networkListStoreData.first);
        networkList.addAll(networkListStoreData.second);
        assertFalse(isNetworkInConfigStoreData(ephemeralNetwork, networkList));
        assertTrue(isNetworkInConfigStoreData(openNetwork, networkList));
    }

    /**
     * Verifies the addition of a single suggestion network using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int, String)} and verifies
     * that the {@link WifiConfigManager#getSavedNetworks()} does not return this network.
     */
    @Test
    public void testAddSingleSuggestionNetwork() throws Exception {
        WifiConfiguration suggestionNetwork = WifiConfigurationTestUtil.createEapNetwork();
        ArgumentCaptor<WifiConfiguration> wifiConfigCaptor =
                ArgumentCaptor.forClass(WifiConfiguration.class);
        suggestionNetwork.ephemeral = true;
        suggestionNetwork.fromWifiNetworkSuggestion = true;
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(suggestionNetwork);

        verifyAddSuggestionOrRequestNetworkToWifiConfigManager(suggestionNetwork);
        verify(mWifiKeyStore, never()).updateNetworkKeys(any(), any());

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);

        // Ensure that this is not returned in the saved network list.
        assertTrue(mWifiConfigManager.getSavedNetworks(Process.WIFI_UID).isEmpty());
        verify(mWcmListener).onNetworkAdded(wifiConfigCaptor.capture());
        assertEquals(suggestionNetwork.networkId, wifiConfigCaptor.getValue().networkId);
        assertTrue(mWifiConfigManager
                .removeNetwork(suggestionNetwork.networkId, TEST_CREATOR_UID, TEST_CREATOR_NAME));
        verify(mWifiKeyStore, never()).removeKeys(any());
    }

    /**
     * Verifies the addition of a single specifier network using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int, String)} and verifies
     * that the {@link WifiConfigManager#getSavedNetworks()} does not return this network.
     */
    @Test
    public void testAddSingleSpecifierNetwork() throws Exception {
        ArgumentCaptor<WifiConfiguration> wifiConfigCaptor =
                ArgumentCaptor.forClass(WifiConfiguration.class);
        WifiConfiguration suggestionNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        suggestionNetwork.ephemeral = true;
        suggestionNetwork.fromWifiNetworkSpecifier = true;
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(suggestionNetwork);

        verifyAddSuggestionOrRequestNetworkToWifiConfigManager(suggestionNetwork);

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);

        // Ensure that this is not returned in the saved network list.
        assertTrue(mWifiConfigManager.getSavedNetworks(Process.WIFI_UID).isEmpty());
        verify(mWcmListener).onNetworkAdded(wifiConfigCaptor.capture());
        assertEquals(suggestionNetwork.networkId, wifiConfigCaptor.getValue().networkId);
    }

    /**
     * Verifies that the modification of a single open network using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)} with a UID which
     * has no permission to modify the network fails.
     */
    @Test
    public void testUpdateSingleOpenNetworkFailedDueToPermissionDenied() throws Exception {
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(openNetwork);

        verifyAddNetworkToWifiConfigManager(openNetwork);

        // Now change BSSID of the network.
        assertAndSetNetworkBSSID(openNetwork, TEST_BSSID);

        when(mWifiPermissionsUtil.checkNetworkSettingsPermission(anyInt())).thenReturn(false);

        // Update the same configuration and ensure that the operation failed.
        NetworkUpdateResult result = updateNetworkToWifiConfigManager(openNetwork);
        assertTrue(result.getNetworkId() == WifiConfiguration.INVALID_NETWORK_ID);
    }

    /**
     * Verifies that the modification of a single open network using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)} with the creator UID
     * should always succeed.
     */
    @Test
    public void testUpdateSingleOpenNetworkSuccessWithCreatorUID() throws Exception {
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(openNetwork);

        verifyAddNetworkToWifiConfigManager(openNetwork);

        // Now change BSSID of the network.
        assertAndSetNetworkBSSID(openNetwork, TEST_BSSID);

        // Update the same configuration using the creator UID.
        NetworkUpdateResult result =
                mWifiConfigManager.addOrUpdateNetwork(openNetwork, TEST_CREATOR_UID);
        assertTrue(result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID);

        // Now verify that the modification has been effective.
        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);
    }

    /**
     * Verifies the addition of a single PSK network using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)} and verifies that
     * {@link WifiConfigManager#getSavedNetworks()} masks the password.
     */
    @Test
    public void testAddSinglePskNetwork() {
        WifiConfiguration pskNetwork = WifiConfigurationTestUtil.createPskNetwork();
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(pskNetwork);

        verifyAddNetworkToWifiConfigManager(pskNetwork);

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);

        List<WifiConfiguration> retrievedSavedNetworks = mWifiConfigManager.getSavedNetworks(
                Process.WIFI_UID);
        assertEquals(retrievedSavedNetworks.size(), 1);
        assertEquals(retrievedSavedNetworks.get(0).getKey(), pskNetwork.getKey());
        assertPasswordsMaskedInWifiConfiguration(retrievedSavedNetworks.get(0));
    }

    /**
     * Verifies the addition of a single WEP network using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)} and verifies that
     * {@link WifiConfigManager#getSavedNetworks()} masks the password.
     */
    @Test
    public void testAddSingleWepNetwork() {
        WifiConfiguration wepNetwork = WifiConfigurationTestUtil.createWepNetwork();
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(wepNetwork);

        verifyAddNetworkToWifiConfigManager(wepNetwork);

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);

        List<WifiConfiguration> retrievedSavedNetworks = mWifiConfigManager.getSavedNetworks(
                Process.WIFI_UID);
        assertEquals(retrievedSavedNetworks.size(), 1);
        assertEquals(retrievedSavedNetworks.get(0).getKey(), wepNetwork.getKey());
        assertPasswordsMaskedInWifiConfiguration(retrievedSavedNetworks.get(0));
    }

    /**
     * Verifies the modification of an IpConfiguration using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)}
     */
    @Test
    public void testUpdateIpConfiguration() {
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(openNetwork);

        verifyAddNetworkToWifiConfigManager(openNetwork);

        // Now change BSSID of the network.
        assertAndSetNetworkBSSID(openNetwork, TEST_BSSID);

        // Update the same configuration and ensure that the IP configuration change flags
        // are not set.
        verifyUpdateNetworkToWifiConfigManagerWithoutIpChange(openNetwork);

        // Configure mock DevicePolicyManager to give Profile Owner permission so that we can modify
        // proxy settings on a configuration
        when(mWifiPermissionsUtil.isProfileOwner(anyInt(), any())).thenReturn(true);

        // Change the IpConfiguration now and ensure that the IP configuration flags are set now.
        assertAndSetNetworkIpConfiguration(
                openNetwork,
                WifiConfigurationTestUtil.createStaticIpConfigurationWithStaticProxy());
        verifyUpdateNetworkToWifiConfigManagerWithIpChange(openNetwork);

        // Now verify that all the modifications have been effective.
        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);
    }

    /**
     * Verifies the removal of a single network using
     * {@link WifiConfigManager#removeNetwork(int)}
     */
    @Test
    public void testRemoveSingleOpenNetwork() {
        ArgumentCaptor<WifiConfiguration> wifiConfigCaptor =
                ArgumentCaptor.forClass(WifiConfiguration.class);
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();

        verifyAddNetworkToWifiConfigManager(openNetwork);
        verify(mWcmListener).onNetworkAdded(wifiConfigCaptor.capture());
        assertEquals(openNetwork.networkId, wifiConfigCaptor.getValue().networkId);
        reset(mWcmListener);

        // Ensure that configured network list is not empty.
        assertFalse(mWifiConfigManager.getConfiguredNetworks().isEmpty());

        verifyRemoveNetworkFromWifiConfigManager(openNetwork);
        // Ensure that configured network list is empty now.
        assertTrue(mWifiConfigManager.getConfiguredNetworks().isEmpty());
        verify(mWcmListener).onNetworkRemoved(wifiConfigCaptor.capture());
        assertEquals(openNetwork.networkId, wifiConfigCaptor.getValue().networkId);
    }

    /**
     * Verifies the removal of an ephemeral network using
     * {@link WifiConfigManager#removeNetwork(int)}
     */
    @Test
    public void testRemoveSingleEphemeralNetwork() throws Exception {
        WifiConfiguration ephemeralNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        ephemeralNetwork.ephemeral = true;
        ArgumentCaptor<WifiConfiguration> wifiConfigCaptor =
                ArgumentCaptor.forClass(WifiConfiguration.class);

        verifyAddEphemeralNetworkToWifiConfigManager(ephemeralNetwork);
        // Ensure that configured network list is not empty.
        assertFalse(mWifiConfigManager.getConfiguredNetworks().isEmpty());
        verify(mWcmListener).onNetworkAdded(wifiConfigCaptor.capture());
        assertEquals(ephemeralNetwork.networkId, wifiConfigCaptor.getValue().networkId);
        verifyRemoveEphemeralNetworkFromWifiConfigManager(ephemeralNetwork);
        // Ensure that configured network list is empty now.
        assertTrue(mWifiConfigManager.getConfiguredNetworks().isEmpty());
        verify(mWcmListener).onNetworkRemoved(wifiConfigCaptor.capture());
        assertEquals(ephemeralNetwork.networkId, wifiConfigCaptor.getValue().networkId);
    }

    /**
     * Verifies the removal of a Passpoint network using
     * {@link WifiConfigManager#removeNetwork(int)}
     */
    @Test
    public void testRemoveSinglePasspointNetwork() throws Exception {
        ArgumentCaptor<WifiConfiguration> wifiConfigCaptor =
                ArgumentCaptor.forClass(WifiConfiguration.class);
        WifiConfiguration passpointNetwork = WifiConfigurationTestUtil.createPasspointNetwork();

        verifyAddPasspointNetworkToWifiConfigManager(passpointNetwork);
        // Ensure that configured network list is not empty.
        assertFalse(mWifiConfigManager.getConfiguredNetworks().isEmpty());
        verify(mWcmListener).onNetworkAdded(wifiConfigCaptor.capture());
        assertEquals(passpointNetwork.networkId, wifiConfigCaptor.getValue().networkId);

        verifyRemovePasspointNetworkFromWifiConfigManager(passpointNetwork);
        // Ensure that configured network list is empty now.
        assertTrue(mWifiConfigManager.getConfiguredNetworks().isEmpty());
        verify(mWcmListener).onNetworkRemoved(wifiConfigCaptor.capture());
        assertEquals(passpointNetwork.networkId, wifiConfigCaptor.getValue().networkId);
    }

    /**
     * Verify that a Passpoint network that's added by an app with {@link #TEST_CREATOR_UID} can
     * be removed by WiFi Service with {@link Process#WIFI_UID}.
     *
     * @throws Exception
     */
    @Test
    public void testRemovePasspointNetworkAddedByOther() throws Exception {
        WifiConfiguration passpointNetwork = WifiConfigurationTestUtil.createPasspointNetwork();

        // Passpoint network is added using TEST_CREATOR_UID.
        verifyAddPasspointNetworkToWifiConfigManager(passpointNetwork);
        // Ensure that configured network list is not empty.
        assertFalse(mWifiConfigManager.getConfiguredNetworks().isEmpty());

        assertTrue(mWifiConfigManager.removeNetwork(
                passpointNetwork.networkId, Process.WIFI_UID, null));

        // Verify keys are not being removed.
        verify(mWifiKeyStore, never()).removeKeys(any(WifiEnterpriseConfig.class));
        verifyNetworkRemoveBroadcast();
        // Ensure that the write was not invoked for Passpoint network remove.
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).write(anyBoolean());

    }
    /**
     * Verifies the addition & update of multiple networks using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)} and the
     * removal of networks using
     * {@link WifiConfigManager#removeNetwork(int)}
     */
    @Test
    public void testAddUpdateRemoveMultipleNetworks() {
        List<WifiConfiguration> networks = new ArrayList<>();
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        WifiConfiguration pskNetwork = WifiConfigurationTestUtil.createPskNetwork();
        WifiConfiguration wepNetwork = WifiConfigurationTestUtil.createWepNetwork();
        networks.add(openNetwork);
        networks.add(pskNetwork);
        networks.add(wepNetwork);

        verifyAddNetworkToWifiConfigManager(openNetwork);
        verifyAddNetworkToWifiConfigManager(pskNetwork);
        verifyAddNetworkToWifiConfigManager(wepNetwork);

        // Now verify that all the additions has been effective.
        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);

        // Modify all the 3 configurations and update it to WifiConfigManager.
        assertAndSetNetworkBSSID(openNetwork, TEST_BSSID);
        assertAndSetNetworkBSSID(pskNetwork, TEST_BSSID);
        assertAndSetNetworkIpConfiguration(
                wepNetwork,
                WifiConfigurationTestUtil.createStaticIpConfigurationWithPacProxy());

        // Configure mock DevicePolicyManager to give Profile Owner permission so that we can modify
        // proxy settings on a configuration
        when(mWifiPermissionsUtil.isProfileOwner(anyInt(), any())).thenReturn(true);

        verifyUpdateNetworkToWifiConfigManagerWithoutIpChange(openNetwork);
        verifyUpdateNetworkToWifiConfigManagerWithoutIpChange(pskNetwork);
        verifyUpdateNetworkToWifiConfigManagerWithIpChange(wepNetwork);
        // Now verify that all the modifications has been effective.
        retrievedNetworks = mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);

        // Now remove all 3 networks.
        verifyRemoveNetworkFromWifiConfigManager(openNetwork);
        verifyRemoveNetworkFromWifiConfigManager(pskNetwork);
        verifyRemoveNetworkFromWifiConfigManager(wepNetwork);

        // Ensure that configured network list is empty now.
        assertTrue(mWifiConfigManager.getConfiguredNetworks().isEmpty());
    }

    /**
     * Verifies the update of network status using
     * {@link WifiConfigManager#updateNetworkSelectionStatus(int, int)}.
     */
    @Test
    public void testNetworkSelectionStatus() {
        ArgumentCaptor<WifiConfiguration> wifiConfigCaptor =
                ArgumentCaptor.forClass(WifiConfiguration.class);
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();

        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(openNetwork);

        int networkId = result.getNetworkId();
        // First set it to enabled.
        verifyUpdateNetworkSelectionStatus(
                networkId, NetworkSelectionStatus.DISABLED_NONE, 0);

        // Now set it to temporarily disabled. The threshold for association rejection is 5, so
        // disable it 5 times to actually mark it temporarily disabled.
        int assocRejectReason = NetworkSelectionStatus.DISABLED_ASSOCIATION_REJECTION;
        int assocRejectThreshold =
                WifiConfigManager.getNetworkSelectionDisableThreshold(assocRejectReason);
        for (int i = 1; i <= assocRejectThreshold; i++) {
            verifyUpdateNetworkSelectionStatus(result.getNetworkId(), assocRejectReason, i);
        }
        verify(mWcmListener).onNetworkTemporarilyDisabled(wifiConfigCaptor.capture(),
                eq(NetworkSelectionStatus.DISABLED_ASSOCIATION_REJECTION));
        assertEquals(openNetwork.networkId, wifiConfigCaptor.getValue().networkId);
        // Now set it to permanently disabled.
        verifyUpdateNetworkSelectionStatus(
                result.getNetworkId(), NetworkSelectionStatus.DISABLED_BY_WIFI_MANAGER, 0);
        verify(mWcmListener).onNetworkPermanentlyDisabled(
                wifiConfigCaptor.capture(), eq(NetworkSelectionStatus.DISABLED_BY_WIFI_MANAGER));
        assertEquals(openNetwork.networkId, wifiConfigCaptor.getValue().networkId);
        // Now set it back to enabled.
        verifyUpdateNetworkSelectionStatus(
                result.getNetworkId(), NetworkSelectionStatus.DISABLED_NONE, 0);
        verify(mWcmListener, times(2))
                .onNetworkEnabled(wifiConfigCaptor.capture());
        assertEquals(openNetwork.networkId, wifiConfigCaptor.getValue().networkId);
    }

    /**
     * Verifies the update of network status using
     * {@link WifiConfigManager#updateNetworkSelectionStatus(int, int)}.
     */
    @Test
    public void testNetworkSelectionStatusTemporarilyDisabledDueToNoInternet() {
        ArgumentCaptor<WifiConfiguration> wifiConfigCaptor =
                ArgumentCaptor.forClass(WifiConfiguration.class);
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();

        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(openNetwork);

        int networkId = result.getNetworkId();
        // First set it to enabled.
        verifyUpdateNetworkSelectionStatus(
                networkId, NetworkSelectionStatus.DISABLED_NONE, 0);

        // Now set it to temporarily disabled. The threshold for no internet is 1, so
        // disable it once to actually mark it temporarily disabled.
        verifyUpdateNetworkSelectionStatus(result.getNetworkId(),
                NetworkSelectionStatus.DISABLED_NO_INTERNET_TEMPORARY, 1);
        verify(mWcmListener).onNetworkTemporarilyDisabled(
                wifiConfigCaptor.capture(),
                eq(NetworkSelectionStatus.DISABLED_NO_INTERNET_TEMPORARY));
        assertEquals(openNetwork.networkId, wifiConfigCaptor.getValue().networkId);
        // Now set it back to enabled.
        verifyUpdateNetworkSelectionStatus(
                result.getNetworkId(), NetworkSelectionStatus.DISABLED_NONE, 0);
        verify(mWcmListener, times(2))
                .onNetworkEnabled(wifiConfigCaptor.capture());
        assertEquals(openNetwork.networkId, wifiConfigCaptor.getValue().networkId);
    }

    /**
     * Verifies the update of network status using
     * {@link WifiConfigManager#updateNetworkSelectionStatus(int, int)} and ensures that
     * enabling a network clears out all the temporary disable counters.
     */
    @Test
    public void testNetworkSelectionStatusEnableClearsDisableCounters() {
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();

        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(openNetwork);

        // First set it to enabled.
        verifyUpdateNetworkSelectionStatus(
                result.getNetworkId(), NetworkSelectionStatus.DISABLED_NONE, 0);

        // Now set it to temporarily disabled 2 times for 2 different reasons.
        verifyUpdateNetworkSelectionStatus(
                result.getNetworkId(), NetworkSelectionStatus.DISABLED_ASSOCIATION_REJECTION, 1);
        verifyUpdateNetworkSelectionStatus(
                result.getNetworkId(), NetworkSelectionStatus.DISABLED_ASSOCIATION_REJECTION, 2);
        verifyUpdateNetworkSelectionStatus(
                result.getNetworkId(), NetworkSelectionStatus.DISABLED_AUTHENTICATION_FAILURE, 1);
        verifyUpdateNetworkSelectionStatus(
                result.getNetworkId(), NetworkSelectionStatus.DISABLED_AUTHENTICATION_FAILURE, 2);

        // Now set it back to enabled.
        verifyUpdateNetworkSelectionStatus(
                result.getNetworkId(), NetworkSelectionStatus.DISABLED_NONE, 0);

        // Ensure that the counters have all been reset now.
        verifyUpdateNetworkSelectionStatus(
                result.getNetworkId(), NetworkSelectionStatus.DISABLED_ASSOCIATION_REJECTION, 1);
        verifyUpdateNetworkSelectionStatus(
                result.getNetworkId(), NetworkSelectionStatus.DISABLED_AUTHENTICATION_FAILURE, 1);
    }

    private void verifyDisableNetwork(NetworkUpdateResult result, int reason) {
        // First set it to enabled.
        verifyUpdateNetworkSelectionStatus(
                result.getNetworkId(), NetworkSelectionStatus.DISABLED_NONE, 0);

        int disableThreshold =
                WifiConfigManager.getNetworkSelectionDisableThreshold(reason);
        for (int i = 1; i <= disableThreshold; i++) {
            verifyUpdateNetworkSelectionStatus(result.getNetworkId(), reason, i);
        }
    }

    private void verifyNetworkIsEnabledAfter(int networkId, long timeout) {
        // try enabling this network 1 second earlier than the expected timeout. This
        // should fail and the status should remain temporarily disabled.
        when(mClock.getElapsedSinceBootMillis()).thenReturn(timeout - 1);
        assertFalse(mWifiConfigManager.tryEnableNetwork(networkId));
        NetworkSelectionStatus retrievedStatus =
                mWifiConfigManager.getConfiguredNetwork(networkId).getNetworkSelectionStatus();
        assertTrue(retrievedStatus.isNetworkTemporaryDisabled());

        // Now advance time by the timeout for association rejection and ensure that the
        // network is now enabled.
        when(mClock.getElapsedSinceBootMillis()).thenReturn(timeout);
        assertTrue(mWifiConfigManager.tryEnableNetwork(networkId));
        retrievedStatus = mWifiConfigManager.getConfiguredNetwork(networkId)
                .getNetworkSelectionStatus();
        assertTrue(retrievedStatus.isNetworkEnabled());
    }

    /**
     * Verifies the enabling of temporarily disabled network using
     * {@link WifiConfigManager#tryEnableNetwork(int)}.
     */
    @Test
    public void testTryEnableNetwork() {
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(openNetwork);

        // Verify exponential backoff on the disable duration based on number of BSSIDs in the
        // BSSID blocklist
        long multiplier = 1;
        int disableReason = NetworkSelectionStatus.DISABLED_ASSOCIATION_REJECTION;
        long timeout = 0;
        for (int i = 1; i < MAX_BLOCKED_BSSID_PER_NETWORK + 1; i++) {
            verifyDisableNetwork(result, disableReason);
            int numBssidsInBlocklist = i;
            when(mBssidBlocklistMonitor.getNumBlockedBssidsForSsid(anyString()))
                    .thenReturn(numBssidsInBlocklist);
            timeout = WifiConfigManager.getNetworkSelectionDisableTimeoutMillis(disableReason)
                    * multiplier;
            multiplier *= 2;
            verifyNetworkIsEnabledAfter(result.getNetworkId(),
                    TEST_ELAPSED_UPDATE_NETWORK_SELECTION_TIME_MILLIS + timeout);
        }

        // Verify one last time that the disable duration is capped at some maximum.
        verifyDisableNetwork(result, disableReason);
        when(mBssidBlocklistMonitor.getNumBlockedBssidsForSsid(anyString()))
                .thenReturn(MAX_BLOCKED_BSSID_PER_NETWORK + 1);
        verifyNetworkIsEnabledAfter(result.getNetworkId(),
                TEST_ELAPSED_UPDATE_NETWORK_SELECTION_TIME_MILLIS + timeout);
    }

    /**
     * Verifies that when no BSSIDs for a network is inside the BSSID blocklist then we
     * re-enable a network.
     */
    @Test
    public void testTryEnableNetworkNoBssidsInBlocklist() {
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(openNetwork);
        int disableReason = NetworkSelectionStatus.DISABLED_ASSOCIATION_REJECTION;

        // Verify that with 0 BSSIDs in blocklist we enable the network immediately
        verifyDisableNetwork(result, disableReason);
        when(mBssidBlocklistMonitor.getNumBlockedBssidsForSsid(anyString())).thenReturn(0);
        when(mClock.getElapsedSinceBootMillis())
                .thenReturn(TEST_ELAPSED_UPDATE_NETWORK_SELECTION_TIME_MILLIS);
        assertTrue(mWifiConfigManager.tryEnableNetwork(result.getNetworkId()));
        NetworkSelectionStatus retrievedStatus =
                mWifiConfigManager.getConfiguredNetwork(result.getNetworkId())
                        .getNetworkSelectionStatus();
        assertTrue(retrievedStatus.isNetworkEnabled());
    }

    /**
     * Verifies the enabling of network using
     * {@link WifiConfigManager#enableNetwork(int, boolean, int)} and
     * {@link WifiConfigManager#disableNetwork(int, int)}.
     */
    @Test
    public void testEnableDisableNetwork() throws Exception {
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();

        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(openNetwork);

        assertTrue(mWifiConfigManager.enableNetwork(
                result.getNetworkId(), false, TEST_CREATOR_UID, TEST_CREATOR_NAME));
        WifiConfiguration retrievedNetwork =
                mWifiConfigManager.getConfiguredNetwork(result.getNetworkId());
        NetworkSelectionStatus retrievedStatus = retrievedNetwork.getNetworkSelectionStatus();
        assertTrue(retrievedStatus.isNetworkEnabled());
        verifyUpdateNetworkStatus(retrievedNetwork, WifiConfiguration.Status.ENABLED);
        mContextConfigStoreMockOrder.verify(mWifiConfigStore).write(eq(true));

        // Now set it disabled.
        assertTrue(mWifiConfigManager.disableNetwork(
                result.getNetworkId(), TEST_CREATOR_UID, TEST_CREATOR_NAME));
        retrievedNetwork = mWifiConfigManager.getConfiguredNetwork(result.getNetworkId());
        retrievedStatus = retrievedNetwork.getNetworkSelectionStatus();
        assertTrue(retrievedStatus.isNetworkPermanentlyDisabled());
        verifyUpdateNetworkStatus(retrievedNetwork, WifiConfiguration.Status.DISABLED);
        mContextConfigStoreMockOrder.verify(mWifiConfigStore).write(eq(true));
    }

    /**
     * Verifies the enabling of network using
     * {@link WifiConfigManager#enableNetwork(int, boolean, int)} with a UID which
     * has no permission to modify the network fails..
     */
    @Test
    public void testEnableNetworkFailedDueToPermissionDenied() throws Exception {
        when(mWifiPermissionsUtil.checkNetworkSettingsPermission(anyInt())).thenReturn(false);

        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(openNetwork);

        assertEquals(WifiConfiguration.INVALID_NETWORK_ID,
                mWifiConfigManager.getLastSelectedNetwork());

        // Now try to set it enable with |TEST_UPDATE_UID|, it should fail and the network
        // should remain disabled.
        assertFalse(mWifiConfigManager.enableNetwork(
                result.getNetworkId(), true, TEST_UPDATE_UID, TEST_UPDATE_NAME));
        WifiConfiguration retrievedNetwork =
                mWifiConfigManager.getConfiguredNetwork(result.getNetworkId());
        NetworkSelectionStatus retrievedStatus = retrievedNetwork.getNetworkSelectionStatus();
        assertFalse(retrievedStatus.isNetworkEnabled());
        assertEquals(WifiConfiguration.Status.DISABLED, retrievedNetwork.status);

        // Set last selected network even if the app has no permission to enable it.
        assertEquals(result.getNetworkId(), mWifiConfigManager.getLastSelectedNetwork());
    }

    /**
     * Verifies the enabling of network using
     * {@link WifiConfigManager#disableNetwork(int, int)} with a UID which
     * has no permission to modify the network fails..
     */
    @Test
    public void testDisableNetworkFailedDueToPermissionDenied() throws Exception {
        when(mWifiPermissionsUtil.checkNetworkSettingsPermission(anyInt())).thenReturn(false);

        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(openNetwork);
        assertTrue(mWifiConfigManager.enableNetwork(
                result.getNetworkId(), true, TEST_CREATOR_UID, TEST_CREATOR_NAME));

        assertEquals(result.getNetworkId(), mWifiConfigManager.getLastSelectedNetwork());

        // Now try to set it disabled with |TEST_UPDATE_UID|, it should fail and the network
        // should remain enabled.
        assertFalse(mWifiConfigManager.disableNetwork(
                result.getNetworkId(), TEST_UPDATE_UID, TEST_CREATOR_NAME));
        WifiConfiguration retrievedNetwork =
                mWifiConfigManager.getConfiguredNetwork(result.getNetworkId());
        NetworkSelectionStatus retrievedStatus = retrievedNetwork.getNetworkSelectionStatus();
        assertTrue(retrievedStatus.isNetworkEnabled());
        assertEquals(WifiConfiguration.Status.ENABLED, retrievedNetwork.status);

        // Clear the last selected network even if the app has no permission to disable it.
        assertEquals(WifiConfiguration.INVALID_NETWORK_ID,
                mWifiConfigManager.getLastSelectedNetwork());
    }

    /**
     * Verifies the allowance/disallowance of autojoin to a network using
     * {@link WifiConfigManager#allowAutojoin(int, boolean)}
     */
    @Test
    public void testAllowDisallowAutojoin() throws Exception {
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();

        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(openNetwork);

        assertTrue(mWifiConfigManager.allowAutojoin(
                result.getNetworkId(), true));
        WifiConfiguration retrievedNetwork =
                mWifiConfigManager.getConfiguredNetwork(result.getNetworkId());
        assertTrue(retrievedNetwork.allowAutojoin);
        mContextConfigStoreMockOrder.verify(mWifiConfigStore).write(eq(true));

        // Now set it disallow auto-join.
        assertTrue(mWifiConfigManager.allowAutojoin(
                result.getNetworkId(), false));
        retrievedNetwork = mWifiConfigManager.getConfiguredNetwork(result.getNetworkId());
        assertFalse(retrievedNetwork.allowAutojoin);
        mContextConfigStoreMockOrder.verify(mWifiConfigStore).write(eq(true));
    }

    /**
     * Verifies the updation of network's connectUid using
     * {@link WifiConfigManager#updateLastConnectUid(int, int)}.
     */
    @Test
    public void testUpdateLastConnectUid() throws Exception {
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();

        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(openNetwork);

        assertTrue(
                mWifiConfigManager.updateLastConnectUid(
                        result.getNetworkId(), TEST_CREATOR_UID));
        WifiConfiguration retrievedNetwork =
                mWifiConfigManager.getConfiguredNetwork(result.getNetworkId());
        assertEquals(TEST_CREATOR_UID, retrievedNetwork.lastConnectUid);
    }

    /**
     * Verifies that any configuration update attempt with an null config is gracefully
     * handled.
     * This invokes {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)}.
     */
    @Test
    public void testAddOrUpdateNetworkWithNullConfig() {
        NetworkUpdateResult result = mWifiConfigManager.addOrUpdateNetwork(null, TEST_CREATOR_UID);
        assertFalse(result.isSuccess());
    }

    /**
     * Verifies that attempting to remove a network without any configs stored will return false.
     * This tests the case where we have not loaded any configs, potentially due to a pending store
     * read.
     * This invokes {@link WifiConfigManager#removeNetwork(int)}.
     */
    @Test
    public void testRemoveNetworkWithEmptyConfigStore() {
        int networkId = new Random().nextInt();
        assertFalse(mWifiConfigManager.removeNetwork(
                networkId, TEST_CREATOR_UID, TEST_CREATOR_NAME));
    }

    /**
     * Verifies that any configuration removal attempt with an invalid networkID is gracefully
     * handled.
     * This invokes {@link WifiConfigManager#removeNetwork(int)}.
     */
    @Test
    public void testRemoveNetworkWithInvalidNetworkId() {
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();

        verifyAddNetworkToWifiConfigManager(openNetwork);

        // Change the networkID to an invalid one.
        openNetwork.networkId++;
        assertFalse(mWifiConfigManager.removeNetwork(
                openNetwork.networkId, TEST_CREATOR_UID, TEST_CREATOR_NAME));
    }

    /**
     * Verifies that any configuration update attempt with an invalid networkID is gracefully
     * handled.
     * This invokes {@link WifiConfigManager#enableNetwork(int, boolean, int)},
     * {@link WifiConfigManager#disableNetwork(int, int)},
     * {@link WifiConfigManager#updateNetworkSelectionStatus(int, int)} and
     * {@link WifiConfigManager#updateLastConnectUid(int, int)}.
     */
    @Test
    public void testChangeConfigurationWithInvalidNetworkId() {
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();

        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(openNetwork);

        assertFalse(mWifiConfigManager.enableNetwork(
                result.getNetworkId() + 1, false, TEST_CREATOR_UID, TEST_CREATOR_NAME));
        assertFalse(mWifiConfigManager.disableNetwork(
                result.getNetworkId() + 1, TEST_CREATOR_UID, TEST_CREATOR_NAME));
        assertFalse(mWifiConfigManager.updateNetworkSelectionStatus(
                result.getNetworkId() + 1, NetworkSelectionStatus.DISABLED_BY_WIFI_MANAGER));
        assertFalse(mWifiConfigManager.updateLastConnectUid(
                result.getNetworkId() + 1, TEST_CREATOR_UID));
    }

    /**
     * Verifies multiple modification of a single network using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)}.
     * This test is basically checking if the apps can reset some of the fields of the config after
     * addition. The fields being reset in this test are the |preSharedKey| and |wepKeys|.
     * 1. Create an open network initially.
     * 2. Modify the added network config to a WEP network config with all the 4 keys set.
     * 3. Modify the added network config to a WEP network config with only 1 key set.
     * 4. Modify the added network config to a PSK network config.
     */
    @Test
    public void testMultipleUpdatesSingleNetwork() {
        WifiConfiguration network = WifiConfigurationTestUtil.createOpenNetwork();
        verifyAddNetworkToWifiConfigManager(network);

        // Now add |wepKeys| to the network. We don't need to update the |allowedKeyManagement|
        // fields for open to WEP conversion.
        String[] wepKeys =
                Arrays.copyOf(WifiConfigurationTestUtil.TEST_WEP_KEYS,
                        WifiConfigurationTestUtil.TEST_WEP_KEYS.length);
        int wepTxKeyIdx = WifiConfigurationTestUtil.TEST_WEP_TX_KEY_INDEX;
        assertAndSetNetworkWepKeysAndTxIndex(network, wepKeys, wepTxKeyIdx);

        verifyUpdateNetworkToWifiConfigManagerWithoutIpChange(network);
        WifiConfigurationTestUtil.assertConfigurationEqualForConfigManagerAddOrUpdate(
                network, mWifiConfigManager.getConfiguredNetworkWithPassword(network.networkId));

        // Now empty out 3 of the |wepKeys[]| and ensure that those keys have been reset correctly.
        for (int i = 1; i < network.wepKeys.length; i++) {
            wepKeys[i] = "";
        }
        wepTxKeyIdx = 0;
        assertAndSetNetworkWepKeysAndTxIndex(network, wepKeys, wepTxKeyIdx);

        verifyUpdateNetworkToWifiConfigManagerWithoutIpChange(network);
        WifiConfigurationTestUtil.assertConfigurationEqualForConfigManagerAddOrUpdate(
                network, mWifiConfigManager.getConfiguredNetworkWithPassword(network.networkId));

        // Now change the config to a PSK network config by resetting the remaining |wepKey[0]|
        // field and setting the |preSharedKey| and |allowedKeyManagement| fields.
        wepKeys[0] = "";
        wepTxKeyIdx = -1;
        assertAndSetNetworkWepKeysAndTxIndex(network, wepKeys, wepTxKeyIdx);
        network.allowedKeyManagement.clear();
        network.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);
        assertAndSetNetworkPreSharedKey(network, WifiConfigurationTestUtil.TEST_PSK);

        verifyUpdateNetworkToWifiConfigManagerWithoutIpChange(network);
        WifiConfigurationTestUtil.assertConfigurationEqualForConfigManagerAddOrUpdate(
                network, mWifiConfigManager.getConfiguredNetworkWithPassword(network.networkId));
    }

    /**
     * Verifies the modification of a WifiEnteriseConfig using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)}.
     */
    @Test
    public void testUpdateWifiEnterpriseConfig() {
        WifiConfiguration network = WifiConfigurationTestUtil.createEapNetwork();
        verifyAddNetworkToWifiConfigManager(network);

        // Set the |password| field in WifiEnterpriseConfig and modify the config to PEAP/GTC.
        network.enterpriseConfig =
                WifiConfigurationTestUtil.createPEAPWifiEnterpriseConfigWithGTCPhase2();
        assertAndSetNetworkEnterprisePassword(network, "test");

        verifyUpdateNetworkToWifiConfigManagerWithoutIpChange(network);
        network.enterpriseConfig.setCaPath(WifiConfigurationTestUtil.TEST_CA_CERT_PATH);
        WifiConfigurationTestUtil.assertConfigurationEqualForConfigManagerAddOrUpdate(
                network, mWifiConfigManager.getConfiguredNetworkWithPassword(network.networkId));

        // Reset the |password| field in WifiEnterpriseConfig and modify the config to TLS/None.
        network.enterpriseConfig.setEapMethod(WifiEnterpriseConfig.Eap.TLS);
        network.enterpriseConfig.setPhase2Method(WifiEnterpriseConfig.Phase2.NONE);
        assertAndSetNetworkEnterprisePassword(network, "");

        verifyUpdateNetworkToWifiConfigManagerWithoutIpChange(network);
        WifiConfigurationTestUtil.assertConfigurationEqualForConfigManagerAddOrUpdate(
                network, mWifiConfigManager.getConfiguredNetworkWithPassword(network.networkId));
    }

    /**
     * Verifies the modification of a single network using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)} by passing in nulls
     * in all the publicly exposed fields.
     */
    @Test
    public void testUpdateSingleNetworkWithNullValues() {
        WifiConfiguration network = WifiConfigurationTestUtil.createEapNetwork();
        verifyAddNetworkToWifiConfigManager(network);

        // Save a copy of the original network for comparison.
        WifiConfiguration originalNetwork = new WifiConfiguration(network);

        // Now set all the public fields to null and try updating the network.
        network.allowedAuthAlgorithms.clear();
        network.allowedProtocols.clear();
        network.allowedKeyManagement.clear();
        network.allowedPairwiseCiphers.clear();
        network.allowedGroupCiphers.clear();
        network.enterpriseConfig = null;

        // Update the network.
        NetworkUpdateResult result = updateNetworkToWifiConfigManager(network);
        assertTrue(result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID);
        assertFalse(result.isNewNetwork());

        // Verify no changes to the original network configuration.
        verifyNetworkUpdateBroadcast();
        verifyNetworkInConfigStoreData(originalNetwork);
        assertFalse(result.hasIpChanged());
        assertFalse(result.hasProxyChanged());

        // Copy over the updated debug params to the original network config before comparison.
        originalNetwork.lastUpdateUid = network.lastUpdateUid;
        originalNetwork.lastUpdateName = network.lastUpdateName;

        // Now verify that there was no change to the network configurations.
        WifiConfigurationTestUtil.assertConfigurationEqualForConfigManagerAddOrUpdate(
                originalNetwork,
                mWifiConfigManager.getConfiguredNetworkWithPassword(originalNetwork.networkId));
    }

    /**
     * Verifies the addition of a single network using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)} by passing in null
     * in IpConfiguraion fails.
     */
    @Test
    public void testAddSingleNetworkWithNullIpConfigurationFails() {
        WifiConfiguration network = WifiConfigurationTestUtil.createEapNetwork();
        network.setIpConfiguration(null);
        NetworkUpdateResult result =
                mWifiConfigManager.addOrUpdateNetwork(network, TEST_CREATOR_UID);
        assertFalse(result.isSuccess());
    }

    /**
     * Verifies that the modification of a single network using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)} does not modify
     * existing configuration if there is a failure.
     */
    @Test
    public void testUpdateSingleNetworkFailureDoesNotModifyOriginal() {
        WifiConfiguration network = WifiConfigurationTestUtil.createEapNetwork();
        network.enterpriseConfig =
                WifiConfigurationTestUtil.createPEAPWifiEnterpriseConfigWithGTCPhase2();
        verifyAddNetworkToWifiConfigManager(network);

        // Save a copy of the original network for comparison.
        WifiConfiguration originalNetwork = new WifiConfiguration(network);

        // Now modify the network's EAP method.
        network.enterpriseConfig =
                WifiConfigurationTestUtil.createTLSWifiEnterpriseConfigWithNonePhase2();

        // Fail this update because of cert installation failure.
        when(mWifiKeyStore
                .updateNetworkKeys(any(WifiConfiguration.class), any(WifiConfiguration.class)))
                .thenReturn(false);
        NetworkUpdateResult result =
                mWifiConfigManager.addOrUpdateNetwork(network, TEST_UPDATE_UID);
        assertTrue(result.getNetworkId() == WifiConfiguration.INVALID_NETWORK_ID);

        // Now verify that there was no change to the network configurations.
        WifiConfigurationTestUtil.assertConfigurationEqualForConfigManagerAddOrUpdate(
                originalNetwork,
                mWifiConfigManager.getConfiguredNetworkWithPassword(originalNetwork.networkId));
    }

    /**
     * Verifies the matching of networks with different encryption types with the
     * corresponding scan detail using
     * {@link WifiConfigManager#getConfiguredNetworkForScanDetailAndCache(ScanDetail)}.
     * The test also verifies that the provided scan detail was cached,
     */
    @Test
    public void testMatchScanDetailToNetworksAndCache() {
        // Create networks of different types and ensure that they're all matched using
        // the corresponding ScanDetail correctly.
        verifyAddSingleNetworkAndMatchScanDetailToNetworkAndCache(
                WifiConfigurationTestUtil.createOpenNetwork());
        verifyAddSingleNetworkAndMatchScanDetailToNetworkAndCache(
                WifiConfigurationTestUtil.createWepNetwork());
        verifyAddSingleNetworkAndMatchScanDetailToNetworkAndCache(
                WifiConfigurationTestUtil.createPskNetwork());
        verifyAddSingleNetworkAndMatchScanDetailToNetworkAndCache(
                WifiConfigurationTestUtil.createEapNetwork());
        verifyAddSingleNetworkAndMatchScanDetailToNetworkAndCache(
                WifiConfigurationTestUtil.createSaeNetwork());
        verifyAddSingleNetworkAndMatchScanDetailToNetworkAndCache(
                WifiConfigurationTestUtil.createOweNetwork());
        verifyAddSingleNetworkAndMatchScanDetailToNetworkAndCache(
                WifiConfigurationTestUtil.createEapSuiteBNetwork());
    }

    /**
     * Verifies that scan details with wrong SSID/authentication types are not matched using
     * {@link WifiConfigManager#getConfiguredNetworkForScanDetailAndCache(ScanDetail)}
     * to the added networks.
     */
    @Test
    public void testNoMatchScanDetailToNetwork() {
        // First create networks of different types.
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        WifiConfiguration wepNetwork = WifiConfigurationTestUtil.createWepNetwork();
        WifiConfiguration pskNetwork = WifiConfigurationTestUtil.createPskNetwork();
        WifiConfiguration eapNetwork = WifiConfigurationTestUtil.createEapNetwork();
        WifiConfiguration saeNetwork = WifiConfigurationTestUtil.createSaeNetwork();
        WifiConfiguration oweNetwork = WifiConfigurationTestUtil.createOweNetwork();
        WifiConfiguration eapSuiteBNetwork = WifiConfigurationTestUtil.createEapSuiteBNetwork();

        // Now add them to WifiConfigManager.
        verifyAddNetworkToWifiConfigManager(openNetwork);
        verifyAddNetworkToWifiConfigManager(wepNetwork);
        verifyAddNetworkToWifiConfigManager(pskNetwork);
        verifyAddNetworkToWifiConfigManager(eapNetwork);
        verifyAddNetworkToWifiConfigManager(saeNetwork);
        verifyAddNetworkToWifiConfigManager(oweNetwork);
        verifyAddNetworkToWifiConfigManager(eapSuiteBNetwork);

        // Now create dummy scan detail corresponding to the networks.
        ScanDetail openNetworkScanDetail = createScanDetailForNetwork(openNetwork);
        ScanDetail wepNetworkScanDetail = createScanDetailForNetwork(wepNetwork);
        ScanDetail pskNetworkScanDetail = createScanDetailForNetwork(pskNetwork);
        ScanDetail eapNetworkScanDetail = createScanDetailForNetwork(eapNetwork);
        ScanDetail saeNetworkScanDetail = createScanDetailForNetwork(saeNetwork);
        ScanDetail oweNetworkScanDetail = createScanDetailForNetwork(oweNetwork);
        ScanDetail eapSuiteBNetworkScanDetail = createScanDetailForNetwork(eapSuiteBNetwork);

        // Now mix and match parameters from different scan details.
        openNetworkScanDetail.getScanResult().SSID =
                wepNetworkScanDetail.getScanResult().SSID;
        wepNetworkScanDetail.getScanResult().capabilities =
                pskNetworkScanDetail.getScanResult().capabilities;
        pskNetworkScanDetail.getScanResult().capabilities =
                eapNetworkScanDetail.getScanResult().capabilities;
        eapNetworkScanDetail.getScanResult().capabilities =
                saeNetworkScanDetail.getScanResult().capabilities;
        saeNetworkScanDetail.getScanResult().capabilities =
                oweNetworkScanDetail.getScanResult().capabilities;
        oweNetworkScanDetail.getScanResult().capabilities =
                eapSuiteBNetworkScanDetail.getScanResult().capabilities;
        eapSuiteBNetworkScanDetail.getScanResult().capabilities =
                openNetworkScanDetail.getScanResult().capabilities;


        // Try to lookup a saved network using the modified scan details. All of these should fail.
        assertNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                openNetworkScanDetail));
        assertNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                wepNetworkScanDetail));
        assertNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                pskNetworkScanDetail));
        assertNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                eapNetworkScanDetail));
        assertNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                saeNetworkScanDetail));
        assertNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                oweNetworkScanDetail));
        assertNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                eapSuiteBNetworkScanDetail));

        // All the cache's should be empty as well.
        assertNull(mWifiConfigManager.getScanDetailCacheForNetwork(openNetwork.networkId));
        assertNull(mWifiConfigManager.getScanDetailCacheForNetwork(wepNetwork.networkId));
        assertNull(mWifiConfigManager.getScanDetailCacheForNetwork(pskNetwork.networkId));
        assertNull(mWifiConfigManager.getScanDetailCacheForNetwork(eapNetwork.networkId));
        assertNull(mWifiConfigManager.getScanDetailCacheForNetwork(saeNetwork.networkId));
        assertNull(mWifiConfigManager.getScanDetailCacheForNetwork(oweNetwork.networkId));
        assertNull(mWifiConfigManager.getScanDetailCacheForNetwork(eapSuiteBNetwork.networkId));
    }

    /**
     * Verifies that ScanDetail added for a network is cached correctly with network ID
     */
    @Test
    public void testUpdateScanDetailForNetwork() {
        // First add the provided network.
        WifiConfiguration testNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(testNetwork);

        // Now create a dummy scan detail corresponding to the network.
        ScanDetail scanDetail = createScanDetailForNetwork(testNetwork);
        ScanResult scanResult = scanDetail.getScanResult();

        mWifiConfigManager.updateScanDetailForNetwork(result.getNetworkId(), scanDetail);

        // Now retrieve the scan detail cache and ensure that the new scan detail is in cache.
        ScanDetailCache retrievedScanDetailCache =
                mWifiConfigManager.getScanDetailCacheForNetwork(result.getNetworkId());
        assertEquals(1, retrievedScanDetailCache.size());
        ScanResult retrievedScanResult = retrievedScanDetailCache.getScanResult(scanResult.BSSID);

        ScanTestUtil.assertScanResultEquals(scanResult, retrievedScanResult);
    }

    /**
     * Verifies that ScanDetail added for a network is cached correctly without network ID
     */
    @Test
    public void testUpdateScanDetailCacheFromScanDetail() {
        // First add the provided network.
        WifiConfiguration testNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(testNetwork);

        // Now create a dummy scan detail corresponding to the network.
        ScanDetail scanDetail = createScanDetailForNetwork(testNetwork);
        ScanResult scanResult = scanDetail.getScanResult();

        mWifiConfigManager.updateScanDetailCacheFromScanDetail(scanDetail);

        // Now retrieve the scan detail cache and ensure that the new scan detail is in cache.
        ScanDetailCache retrievedScanDetailCache =
                mWifiConfigManager.getScanDetailCacheForNetwork(result.getNetworkId());
        assertEquals(1, retrievedScanDetailCache.size());
        ScanResult retrievedScanResult = retrievedScanDetailCache.getScanResult(scanResult.BSSID);

        ScanTestUtil.assertScanResultEquals(scanResult, retrievedScanResult);
    }

    /**
     * Verifies that scan detail cache is trimmed down when the size of the cache for a network
     * exceeds {@link WifiConfigManager#SCAN_CACHE_ENTRIES_MAX_SIZE}.
     */
    @Test
    public void testScanDetailCacheTrimForNetwork() {
        // Add a single network.
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        verifyAddNetworkToWifiConfigManager(openNetwork);

        ScanDetailCache scanDetailCache;
        String testBssidPrefix = "00:a5:b8:c9:45:";

        // Modify |BSSID| field in the scan result and add copies of scan detail
        // |SCAN_CACHE_ENTRIES_MAX_SIZE| times.
        int scanDetailNum = 1;
        for (; scanDetailNum <= WifiConfigManager.SCAN_CACHE_ENTRIES_MAX_SIZE; scanDetailNum++) {
            // Create dummy scan detail caches with different BSSID for the network.
            ScanDetail scanDetail =
                    createScanDetailForNetwork(
                            openNetwork, String.format("%s%02x", testBssidPrefix, scanDetailNum));
            assertNotNull(
                    mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(scanDetail));

            // The size of scan detail cache should keep growing until it hits
            // |SCAN_CACHE_ENTRIES_MAX_SIZE|.
            scanDetailCache =
                    mWifiConfigManager.getScanDetailCacheForNetwork(openNetwork.networkId);
            assertEquals(scanDetailNum, scanDetailCache.size());
        }

        // Now add the |SCAN_CACHE_ENTRIES_MAX_SIZE + 1| entry. This should trigger the trim.
        ScanDetail scanDetail =
                createScanDetailForNetwork(
                        openNetwork, String.format("%s%02x", testBssidPrefix, scanDetailNum));
        assertNotNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(scanDetail));

        // Retrieve the scan detail cache and ensure that the size was trimmed down to
        // |SCAN_CACHE_ENTRIES_TRIM_SIZE + 1|. The "+1" is to account for the new entry that
        // was added after the trim.
        scanDetailCache = mWifiConfigManager.getScanDetailCacheForNetwork(openNetwork.networkId);
        assertEquals(WifiConfigManager.SCAN_CACHE_ENTRIES_TRIM_SIZE + 1, scanDetailCache.size());
    }

    /**
     * Verifies that hasEverConnected is false for a newly added network.
     */
    @Test
    public void testAddNetworkHasEverConnectedFalse() {
        verifyAddNetworkHasEverConnectedFalse(WifiConfigurationTestUtil.createOpenNetwork());
    }

    /**
     * Verifies that hasEverConnected is false for a newly added network even when new config has
     * mistakenly set HasEverConnected to true.
     */
    @Test
    public void testAddNetworkOverridesHasEverConnectedWhenTrueInNewConfig() {
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        openNetwork.getNetworkSelectionStatus().setHasEverConnected(true);
        verifyAddNetworkHasEverConnectedFalse(openNetwork);
    }

    /**
     * Verify that the |HasEverConnected| is set when
     * {@link WifiConfigManager#updateNetworkAfterConnect(int)} is invoked.
     */
    @Test
    public void testUpdateConfigAfterConnectHasEverConnectedTrue() {
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        verifyAddNetworkHasEverConnectedFalse(openNetwork);
        verifyUpdateNetworkAfterConnectHasEverConnectedTrue(openNetwork.networkId);
    }

    /**
     * Verifies that hasEverConnected is cleared when a network config |preSharedKey| is updated.
     */
    @Test
    public void testUpdatePreSharedKeyClearsHasEverConnected() {
        WifiConfiguration pskNetwork = WifiConfigurationTestUtil.createPskNetwork();
        verifyAddNetworkHasEverConnectedFalse(pskNetwork);
        verifyUpdateNetworkAfterConnectHasEverConnectedTrue(pskNetwork.networkId);

        // Now update the same network with a different psk.
        String newPsk = "\"newpassword\"";
        assertFalse(pskNetwork.preSharedKey.equals(newPsk));
        pskNetwork.preSharedKey = newPsk;
        verifyUpdateNetworkWithCredentialChangeHasEverConnectedFalse(pskNetwork);
    }

    /**
     * Verifies that hasEverConnected is cleared when a network config |wepKeys| is updated.
     */
    @Test
    public void testUpdateWepKeysClearsHasEverConnected() {
        WifiConfiguration wepNetwork = WifiConfigurationTestUtil.createWepNetwork();
        verifyAddNetworkHasEverConnectedFalse(wepNetwork);
        verifyUpdateNetworkAfterConnectHasEverConnectedTrue(wepNetwork.networkId);

        // Now update the same network with a different wep.
        assertFalse(wepNetwork.wepKeys[0].equals("newpassword"));
        wepNetwork.wepKeys[0] = "newpassword";
        verifyUpdateNetworkWithCredentialChangeHasEverConnectedFalse(wepNetwork);
    }

    /**
     * Verifies that hasEverConnected is cleared when a network config |wepTxKeyIndex| is updated.
     */
    @Test
    public void testUpdateWepTxKeyClearsHasEverConnected() {
        WifiConfiguration wepNetwork = WifiConfigurationTestUtil.createWepNetwork();
        verifyAddNetworkHasEverConnectedFalse(wepNetwork);
        verifyUpdateNetworkAfterConnectHasEverConnectedTrue(wepNetwork.networkId);

        // Now update the same network with a different wep.
        assertFalse(wepNetwork.wepTxKeyIndex == 3);
        wepNetwork.wepTxKeyIndex = 3;
        verifyUpdateNetworkWithCredentialChangeHasEverConnectedFalse(wepNetwork);
    }

    /**
     * Verifies that hasEverConnected is cleared when a network config |allowedKeyManagement| is
     * updated.
     */
    @Test
    public void testUpdateAllowedKeyManagementClearsHasEverConnected() {
        WifiConfiguration pskNetwork = WifiConfigurationTestUtil.createPskNetwork();
        verifyAddNetworkHasEverConnectedFalse(pskNetwork);
        verifyUpdateNetworkAfterConnectHasEverConnectedTrue(pskNetwork.networkId);

        assertFalse(pskNetwork.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.IEEE8021X));
        pskNetwork.allowedKeyManagement.clear();
        pskNetwork.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.SAE);
        pskNetwork.requirePmf = true;
        verifyUpdateNetworkWithCredentialChangeHasEverConnectedFalse(pskNetwork);
    }

    /**
     * Verifies that hasEverConnected is cleared when a network config |allowedProtocol| is
     * updated.
     */
    @Test
    public void testUpdateProtocolsClearsHasEverConnected() {
        WifiConfiguration pskNetwork = WifiConfigurationTestUtil.createPskNetwork();
        verifyAddNetworkHasEverConnectedFalse(pskNetwork);
        verifyUpdateNetworkAfterConnectHasEverConnectedTrue(pskNetwork.networkId);

        assertFalse(pskNetwork.allowedProtocols.get(WifiConfiguration.Protocol.OSEN));
        pskNetwork.allowedProtocols.set(WifiConfiguration.Protocol.OSEN);
        verifyUpdateNetworkWithCredentialChangeHasEverConnectedFalse(pskNetwork);
    }

    /**
     * Verifies that hasEverConnected is cleared when a network config |allowedAuthAlgorithms| is
     * updated.
     */
    @Test
    public void testUpdateAllowedAuthAlgorithmsClearsHasEverConnected() {
        WifiConfiguration pskNetwork = WifiConfigurationTestUtil.createPskNetwork();
        verifyAddNetworkHasEverConnectedFalse(pskNetwork);
        verifyUpdateNetworkAfterConnectHasEverConnectedTrue(pskNetwork.networkId);

        assertFalse(pskNetwork.allowedAuthAlgorithms.get(WifiConfiguration.AuthAlgorithm.LEAP));
        pskNetwork.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.LEAP);
        verifyUpdateNetworkWithCredentialChangeHasEverConnectedFalse(pskNetwork);
    }

    /**
     * Verifies that hasEverConnected is cleared when a network config |allowedPairwiseCiphers| is
     * updated.
     */
    @Test
    public void testUpdateAllowedPairwiseCiphersClearsHasEverConnected() {
        WifiConfiguration pskNetwork = WifiConfigurationTestUtil.createPskNetwork();
        verifyAddNetworkHasEverConnectedFalse(pskNetwork);
        verifyUpdateNetworkAfterConnectHasEverConnectedTrue(pskNetwork.networkId);

        assertFalse(pskNetwork.allowedPairwiseCiphers.get(WifiConfiguration.PairwiseCipher.NONE));
        pskNetwork.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.NONE);
        verifyUpdateNetworkWithCredentialChangeHasEverConnectedFalse(pskNetwork);
    }

    /**
     * Verifies that hasEverConnected is cleared when a network config |allowedGroup| is
     * updated.
     */
    @Test
    public void testUpdateAllowedGroupCiphersClearsHasEverConnected() {
        WifiConfiguration pskNetwork = WifiConfigurationTestUtil.createPskNetwork();
        verifyAddNetworkHasEverConnectedFalse(pskNetwork);
        verifyUpdateNetworkAfterConnectHasEverConnectedTrue(pskNetwork.networkId);

        assertTrue(pskNetwork.allowedGroupCiphers.get(WifiConfiguration.GroupCipher.WEP104));
        pskNetwork.allowedGroupCiphers.clear(WifiConfiguration.GroupCipher.WEP104);
        verifyUpdateNetworkWithCredentialChangeHasEverConnectedFalse(pskNetwork);
    }

    /**
     * Verifies that hasEverConnected is cleared when a network config |hiddenSSID| is
     * updated.
     */
    @Test
    public void testUpdateHiddenSSIDClearsHasEverConnected() {
        WifiConfiguration pskNetwork = WifiConfigurationTestUtil.createPskNetwork();
        verifyAddNetworkHasEverConnectedFalse(pskNetwork);
        verifyUpdateNetworkAfterConnectHasEverConnectedTrue(pskNetwork.networkId);

        assertFalse(pskNetwork.hiddenSSID);
        pskNetwork.hiddenSSID = true;
        verifyUpdateNetworkWithCredentialChangeHasEverConnectedFalse(pskNetwork);
    }

    /**
     * Verifies that hasEverConnected is cleared when a network config |requirePMF| is
     * updated.
     */
    @Test
    public void testUpdateRequirePMFClearsHasEverConnected() {
        WifiConfiguration pskNetwork = WifiConfigurationTestUtil.createPskNetwork();
        verifyAddNetworkHasEverConnectedFalse(pskNetwork);
        verifyUpdateNetworkAfterConnectHasEverConnectedTrue(pskNetwork.networkId);

        assertFalse(pskNetwork.requirePmf);
        pskNetwork.requirePmf = true;

        NetworkUpdateResult result =
                verifyUpdateNetworkToWifiConfigManagerWithoutIpChange(pskNetwork);
        WifiConfiguration retrievedNetwork =
                mWifiConfigManager.getConfiguredNetwork(result.getNetworkId());
        assertFalse("Updating network credentials config must clear hasEverConnected.",
                retrievedNetwork.getNetworkSelectionStatus().hasEverConnected());
        assertTrue(result.hasCredentialChanged());
    }

    /**
     * Verifies that hasEverConnected is cleared when a network config |enterpriseConfig| is
     * updated.
     */
    @Test
    public void testUpdateEnterpriseConfigClearsHasEverConnected() {
        WifiConfiguration eapNetwork = WifiConfigurationTestUtil.createEapNetwork();
        eapNetwork.enterpriseConfig =
                WifiConfigurationTestUtil.createPEAPWifiEnterpriseConfigWithGTCPhase2();
        verifyAddNetworkHasEverConnectedFalse(eapNetwork);
        verifyUpdateNetworkAfterConnectHasEverConnectedTrue(eapNetwork.networkId);

        assertFalse(eapNetwork.enterpriseConfig.getEapMethod() == WifiEnterpriseConfig.Eap.TLS);
        eapNetwork.enterpriseConfig.setEapMethod(WifiEnterpriseConfig.Eap.TLS);
        verifyUpdateNetworkWithCredentialChangeHasEverConnectedFalse(eapNetwork);
    }

    /**
     * Verifies that if the app sends back the masked passwords in an update, we ignore it.
     */
    @Test
    public void testUpdateIgnoresMaskedPasswords() {
        WifiConfiguration someRandomNetworkWithAllMaskedFields =
                WifiConfigurationTestUtil.createPskNetwork();
        someRandomNetworkWithAllMaskedFields.wepKeys = WifiConfigurationTestUtil.TEST_WEP_KEYS;
        someRandomNetworkWithAllMaskedFields.preSharedKey = WifiConfigurationTestUtil.TEST_PSK;
        someRandomNetworkWithAllMaskedFields.enterpriseConfig.setPassword(
                WifiConfigurationTestUtil.TEST_EAP_PASSWORD);

        NetworkUpdateResult result =
                verifyAddNetworkToWifiConfigManager(someRandomNetworkWithAllMaskedFields);

        // All of these passwords must be masked in this retrieved network config.
        WifiConfiguration retrievedNetworkWithMaskedPassword =
                mWifiConfigManager.getConfiguredNetwork(result.getNetworkId());
        assertPasswordsMaskedInWifiConfiguration(retrievedNetworkWithMaskedPassword);
        // Ensure that the passwords are present internally.
        WifiConfiguration retrievedNetworkWithPassword =
                mWifiConfigManager.getConfiguredNetworkWithPassword(result.getNetworkId());
        assertEquals(someRandomNetworkWithAllMaskedFields.preSharedKey,
                retrievedNetworkWithPassword.preSharedKey);
        assertEquals(someRandomNetworkWithAllMaskedFields.wepKeys,
                retrievedNetworkWithPassword.wepKeys);
        assertEquals(someRandomNetworkWithAllMaskedFields.enterpriseConfig.getPassword(),
                retrievedNetworkWithPassword.enterpriseConfig.getPassword());

        // Now update the same network config using the masked config.
        verifyUpdateNetworkToWifiConfigManager(retrievedNetworkWithMaskedPassword);

        // Retrieve the network config with password and ensure that they have not been overwritten
        // with *.
        retrievedNetworkWithPassword =
                mWifiConfigManager.getConfiguredNetworkWithPassword(result.getNetworkId());
        assertEquals(someRandomNetworkWithAllMaskedFields.preSharedKey,
                retrievedNetworkWithPassword.preSharedKey);
        assertEquals(someRandomNetworkWithAllMaskedFields.wepKeys,
                retrievedNetworkWithPassword.wepKeys);
        assertEquals(someRandomNetworkWithAllMaskedFields.enterpriseConfig.getPassword(),
                retrievedNetworkWithPassword.enterpriseConfig.getPassword());
    }

    /**
     * Verifies that randomized MAC address is masked out when we return
     * external configs except when explicitly asked for MAC address.
     */
    @Test
    public void testGetConfiguredNetworksMasksRandomizedMac() {
        int targetUidConfigNonCreator = TEST_CREATOR_UID + 100;

        WifiConfiguration config = WifiConfigurationTestUtil.createOpenNetwork();
        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(config);

        // Verify that randomized MAC address is masked when obtaining saved networks from
        // invalid UID
        List<WifiConfiguration> configs = mWifiConfigManager.getSavedNetworks(Process.INVALID_UID);
        assertEquals(1, configs.size());
        assertRandomizedMacAddressMaskedInWifiConfiguration(configs.get(0));

        // Verify that randomized MAC address is unmasked when obtaining saved networks from
        // system UID
        configs = mWifiConfigManager.getSavedNetworks(Process.WIFI_UID);
        assertEquals(1, configs.size());
        String macAddress = configs.get(0).getRandomizedMacAddress().toString();
        assertNotEquals(WifiInfo.DEFAULT_MAC_ADDRESS, macAddress);

        // Verify that randomized MAC address is masked when obtaining saved networks from
        // (carrier app) non-creator of the config
        configs = mWifiConfigManager.getSavedNetworks(targetUidConfigNonCreator);
        assertEquals(1, configs.size());
        assertRandomizedMacAddressMaskedInWifiConfiguration(configs.get(0));

        // Verify that randomized MAC address is unmasked when obtaining saved networks from
        // (carrier app) creator of the config
        configs = mWifiConfigManager.getSavedNetworks(TEST_CREATOR_UID);
        assertEquals(1, configs.size());
        assertEquals(macAddress, configs.get(0).getRandomizedMacAddress().toString());

        // Verify that randomized MAC address is unmasked when getting list of privileged (with
        // password) configurations
        WifiConfiguration configWithRandomizedMac = mWifiConfigManager
                .getConfiguredNetworkWithPassword(result.getNetworkId());
        assertEquals(macAddress, configs.get(0).getRandomizedMacAddress().toString());

        // Ensure that the MAC address is present when asked for config with MAC address.
        configWithRandomizedMac = mWifiConfigManager
                .getConfiguredNetworkWithoutMasking(result.getNetworkId());
        assertEquals(macAddress, configs.get(0).getRandomizedMacAddress().toString());
    }

    /**
     * Verify that the aggressive randomization whitelist works for passpoints. (by checking FQDN)
     */
    @Test
    public void testShouldUseAggressiveRandomizationPasspoint() {
        WifiConfiguration c = WifiConfigurationTestUtil.createPasspointNetwork();
        // Adds SSID to the whitelist.
        Set<String> ssidList = new HashSet<>();
        ssidList.add(c.SSID);
        when(mDeviceConfigFacade.getAggressiveMacRandomizationSsidAllowlist())
                .thenReturn(ssidList);

        // Verify that if for passpoint networks we don't check for the SSID to be in the whitelist
        assertFalse(mWifiConfigManager.shouldUseAggressiveRandomization(c));

        // instead we check for the FQDN
        ssidList.clear();
        ssidList.add(c.FQDN);
        assertTrue(mWifiConfigManager.shouldUseAggressiveRandomization(c));
    }

    /**
     * Verify that when DeviceConfigFacade#isEnhancedMacRandomizationEnabled returns true, any
     * networks that already use randomized MAC use enhanced MAC randomization instead.
     */
    @Test
    public void testEnhanecedMacRandomizationIsEnabledGlobally() {
        when(mFrameworkFacade.getIntegerSetting(eq(mContext),
                eq(WifiConfigManager.ENHANCED_MAC_RANDOMIZATION_FEATURE_FORCE_ENABLE_FLAG),
                anyInt())).thenReturn(1);
        WifiConfiguration config = WifiConfigurationTestUtil.createOpenNetwork();
        assertTrue(mWifiConfigManager.shouldUseAggressiveRandomization(config));

        config.macRandomizationSetting = WifiConfiguration.RANDOMIZATION_NONE;
        assertFalse(mWifiConfigManager.shouldUseAggressiveRandomization(config));
    }

    /**
     * Verifies that getRandomizedMacAndUpdateIfNeeded updates the randomized MAC address and
     * |randomizedMacExpirationTimeMs| correctly.
     *
     * Then verify that getRandomizedMacAndUpdateIfNeeded sets the randomized MAC back to the
     * persistent MAC.
     */
    @Test
    public void testRandomizedMacUpdateAndRestore() {
        setUpWifiConfigurationForAggressiveRandomization();
        // get the aggressive randomized MAC address.
        WifiConfiguration config = getFirstInternalWifiConfiguration();
        final MacAddress aggressiveMac = config.getRandomizedMacAddress();
        assertNotEquals(WifiInfo.DEFAULT_MAC_ADDRESS, aggressiveMac.toString());
        assertEquals(TEST_WALLCLOCK_CREATION_TIME_MILLIS
                + WifiConfigManager.AGGRESSIVE_MAC_WAIT_AFTER_DISCONNECT_MS,
                config.randomizedMacExpirationTimeMs);

        // verify the new randomized mac should be different from the original mac.
        when(mClock.getWallClockMillis()).thenReturn(TEST_WALLCLOCK_CREATION_TIME_MILLIS
                + WifiConfigManager.AGGRESSIVE_MAC_WAIT_AFTER_DISCONNECT_MS + 1);
        MacAddress aggressiveMac2 = mWifiConfigManager.getRandomizedMacAndUpdateIfNeeded(config);

        // verify internal WifiConfiguration has MacAddress updated correctly by comparing the
        // MAC address from internal WifiConfiguration with the value returned by API.
        config = getFirstInternalWifiConfiguration();
        assertEquals(aggressiveMac2, config.getRandomizedMacAddress());
        assertNotEquals(aggressiveMac, aggressiveMac2);

        // Now disable aggressive randomization and verify the randomized MAC is changed back to
        // the persistent MAC.
        Set<String> blacklist = new HashSet<>();
        blacklist.add(config.SSID);
        when(mDeviceConfigFacade.getAggressiveMacRandomizationSsidBlocklist())
                .thenReturn(blacklist);
        MacAddress persistentMac = mWifiConfigManager.getRandomizedMacAndUpdateIfNeeded(config);

        // verify internal WifiConfiguration has MacAddress updated correctly by comparing the
        // MAC address from internal WifiConfiguration with the value returned by API.
        config = getFirstInternalWifiConfiguration();
        assertEquals(persistentMac, config.getRandomizedMacAddress());
        assertNotEquals(persistentMac, aggressiveMac);
        assertNotEquals(persistentMac, aggressiveMac2);
    }

    /**
     * Verifies that the updateRandomizedMacExpireTime method correctly updates the
     * |randomizedMacExpirationTimeMs| field of the given WifiConfiguration.
     */
    @Test
    public void testUpdateRandomizedMacExpireTime() {
        setUpWifiConfigurationForAggressiveRandomization();
        WifiConfiguration config = getFirstInternalWifiConfiguration();
        when(mClock.getWallClockMillis()).thenReturn(0L);

        // verify that |AGGRESSIVE_MAC_REFRESH_MS_MIN| is honored as the lower bound.
        long dhcpLeaseTimeInSeconds = (WifiConfigManager.AGGRESSIVE_MAC_REFRESH_MS_MIN / 1000) - 1;
        mWifiConfigManager.updateRandomizedMacExpireTime(config, dhcpLeaseTimeInSeconds);
        config = getFirstInternalWifiConfiguration();
        assertEquals(WifiConfigManager.AGGRESSIVE_MAC_REFRESH_MS_MIN,
                config.randomizedMacExpirationTimeMs);

        // verify that |AGGRESSIVE_MAC_REFRESH_MS_MAX| is honored as the upper bound.
        dhcpLeaseTimeInSeconds = (WifiConfigManager.AGGRESSIVE_MAC_REFRESH_MS_MAX / 1000) + 1;
        mWifiConfigManager.updateRandomizedMacExpireTime(config, dhcpLeaseTimeInSeconds);
        config = getFirstInternalWifiConfiguration();
        assertEquals(WifiConfigManager.AGGRESSIVE_MAC_REFRESH_MS_MAX,
                config.randomizedMacExpirationTimeMs);

        // finally verify setting a valid value between the upper and lower bounds.
        dhcpLeaseTimeInSeconds = (WifiConfigManager.AGGRESSIVE_MAC_REFRESH_MS_MIN / 1000) + 5;
        mWifiConfigManager.updateRandomizedMacExpireTime(config, dhcpLeaseTimeInSeconds);
        config = getFirstInternalWifiConfiguration();
        assertEquals(WifiConfigManager.AGGRESSIVE_MAC_REFRESH_MS_MIN + 5000,
                config.randomizedMacExpirationTimeMs);
    }

    /**
     * Verifies that the expiration time of the currently used aggressive MAC is set to the
     * maximum of some predefined time and the remaining DHCP lease duration at disconnect.
     */
    @Test
    public void testRandomizedMacExpirationTimeUpdatedAtDisconnect() {
        setUpWifiConfigurationForAggressiveRandomization();
        WifiConfiguration config = getFirstInternalWifiConfiguration();
        when(mClock.getWallClockMillis()).thenReturn(0L);

        // First set the DHCP expiration time to be longer than the predefined time.
        long dhcpLeaseTimeInSeconds = (WifiConfigManager.AGGRESSIVE_MAC_WAIT_AFTER_DISCONNECT_MS
                / 1000) + 1;
        mWifiConfigManager.updateRandomizedMacExpireTime(config, dhcpLeaseTimeInSeconds);
        config = getFirstInternalWifiConfiguration();
        long expirationTime = config.randomizedMacExpirationTimeMs;
        assertEquals(WifiConfigManager.AGGRESSIVE_MAC_WAIT_AFTER_DISCONNECT_MS + 1000,
                expirationTime);

        // Verify that network disconnect does not update the expiration time since the remaining
        // lease duration is greater.
        mWifiConfigManager.updateNetworkAfterDisconnect(config.networkId);
        config = getFirstInternalWifiConfiguration();
        assertEquals(expirationTime, config.randomizedMacExpirationTimeMs);

        // Simulate time moving forward, then verify that a network disconnection updates the
        // MAC address expiration time correctly.
        when(mClock.getWallClockMillis()).thenReturn(5000L);
        mWifiConfigManager.updateNetworkAfterDisconnect(config.networkId);
        config = getFirstInternalWifiConfiguration();
        assertEquals(WifiConfigManager.AGGRESSIVE_MAC_WAIT_AFTER_DISCONNECT_MS + 5000,
                config.randomizedMacExpirationTimeMs);
    }

    /**
     * Verifies that the randomized MAC address is not updated when insufficient time have past
     * since the previous update.
     */
    @Test
    public void testRandomizedMacIsNotUpdatedDueToTimeConstraint() {
        setUpWifiConfigurationForAggressiveRandomization();
        // get the persistent randomized MAC address.
        WifiConfiguration config = getFirstInternalWifiConfiguration();
        final MacAddress aggressiveMac = config.getRandomizedMacAddress();
        assertNotEquals(WifiInfo.DEFAULT_MAC_ADDRESS, aggressiveMac.toString());
        assertEquals(TEST_WALLCLOCK_CREATION_TIME_MILLIS
                + WifiConfigManager.AGGRESSIVE_MAC_WAIT_AFTER_DISCONNECT_MS,
                config.randomizedMacExpirationTimeMs);

        // verify that the randomized MAC is unchanged.
        when(mClock.getWallClockMillis()).thenReturn(TEST_WALLCLOCK_CREATION_TIME_MILLIS
                + WifiConfigManager.AGGRESSIVE_MAC_WAIT_AFTER_DISCONNECT_MS);
        MacAddress newMac = mWifiConfigManager.getRandomizedMacAndUpdateIfNeeded(config);
        assertEquals(aggressiveMac, newMac);
    }

    /**
     * Verifies that aggressive randomization SSID lists from DeviceConfig and overlay are being
     * combined together properly.
     */
    @Test
    public void testPerDeviceAggressiveRandomizationSsids() {
        // This will add the SSID to allowlist using DeviceConfig.
        setUpWifiConfigurationForAggressiveRandomization();
        WifiConfiguration config = getFirstInternalWifiConfiguration();
        MacAddress aggressiveMac = config.getRandomizedMacAddress();

        // add to aggressive randomization blocklist using overlay.
        mResources.setStringArray(R.array.config_wifi_aggressive_randomization_ssid_blocklist,
                new String[] {config.SSID});
        MacAddress persistentMac = mWifiConfigManager.getRandomizedMacAndUpdateIfNeeded(config);
        // verify that now the persistent randomized MAC is used.
        assertNotEquals(aggressiveMac, persistentMac);
    }

    private WifiConfiguration getFirstInternalWifiConfiguration() {
        List<WifiConfiguration> configs = mWifiConfigManager.getSavedNetworks(Process.WIFI_UID);
        assertEquals(1, configs.size());
        return configs.get(0);
    }

    private void setUpWifiConfigurationForAggressiveRandomization() {
        // sets up a WifiConfiguration for aggressive randomization.
        WifiConfiguration c = WifiConfigurationTestUtil.createOpenNetwork();
        // Adds the WifiConfiguration to aggressive randomization whitelist.
        Set<String> ssidList = new HashSet<>();
        ssidList.add(c.SSID);
        when(mDeviceConfigFacade.getAggressiveMacRandomizationSsidAllowlist())
                .thenReturn(ssidList);
        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(c);
        mWifiConfigManager.updateNetworkAfterDisconnect(result.getNetworkId());

        // Verify the MAC address is valid, and is NOT calculated from the (SSID + security type)
        assertTrue(WifiConfiguration.isValidMacAddressForRandomization(
                getFirstInternalWifiConfiguration().getRandomizedMacAddress()));
        verify(mMacAddressUtil, never()).calculatePersistentMac(any(), any());
    }

    /**
     * Verifies that macRandomizationSetting is not masked out when MAC randomization is supported.
     */
    @Test
    public void testGetConfiguredNetworksNotMaskMacRandomizationSetting() {
        WifiConfiguration config = WifiConfigurationTestUtil.createOpenNetwork();
        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(config);

        // Verify macRandomizationSetting is not masked out when feature is supported.
        List<WifiConfiguration> configs = mWifiConfigManager.getSavedNetworks(Process.WIFI_UID);
        assertEquals(1, configs.size());
        assertEquals(WifiConfiguration.RANDOMIZATION_PERSISTENT,
                configs.get(0).macRandomizationSetting);
    }

    /**
     * Verifies that macRandomizationSetting is masked out to WifiConfiguration.RANDOMIZATION_NONE
     * when MAC randomization is not supported on the device.
     */
    @Test
    public void testGetConfiguredNetworksMasksMacRandomizationSetting() {
        mResources.setBoolean(R.bool.config_wifi_connected_mac_randomization_supported, false);
        createWifiConfigManager();
        WifiConfiguration config = WifiConfigurationTestUtil.createOpenNetwork();
        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(config);

        // Verify macRandomizationSetting is masked out when feature is unsupported.
        List<WifiConfiguration> configs = mWifiConfigManager.getSavedNetworks(Process.WIFI_UID);
        assertEquals(1, configs.size());
        assertEquals(WifiConfiguration.RANDOMIZATION_NONE, configs.get(0).macRandomizationSetting);
    }

    /**
     * Verifies that passwords are masked out when we return external configs except when
     * explicitly asked for them.
     */
    @Test
    public void testGetConfiguredNetworksMasksPasswords() {
        WifiConfiguration networkWithPasswords = WifiConfigurationTestUtil.createPskNetwork();
        networkWithPasswords.wepKeys = WifiConfigurationTestUtil.TEST_WEP_KEYS;
        networkWithPasswords.preSharedKey = WifiConfigurationTestUtil.TEST_PSK;
        networkWithPasswords.enterpriseConfig.setPassword(
                WifiConfigurationTestUtil.TEST_EAP_PASSWORD);

        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(networkWithPasswords);

        // All of these passwords must be masked in this retrieved network config.
        WifiConfiguration retrievedNetworkWithMaskedPassword =
                mWifiConfigManager.getConfiguredNetwork(result.getNetworkId());
        assertPasswordsMaskedInWifiConfiguration(retrievedNetworkWithMaskedPassword);

        // Ensure that the passwords are present when asked for configs with passwords.
        WifiConfiguration retrievedNetworkWithPassword =
                mWifiConfigManager.getConfiguredNetworkWithPassword(result.getNetworkId());
        assertEquals(networkWithPasswords.preSharedKey, retrievedNetworkWithPassword.preSharedKey);
        assertEquals(networkWithPasswords.wepKeys, retrievedNetworkWithPassword.wepKeys);
        assertEquals(networkWithPasswords.enterpriseConfig.getPassword(),
                retrievedNetworkWithPassword.enterpriseConfig.getPassword());

        retrievedNetworkWithPassword =
                mWifiConfigManager.getConfiguredNetworkWithoutMasking(result.getNetworkId());
        assertEquals(networkWithPasswords.preSharedKey, retrievedNetworkWithPassword.preSharedKey);
        assertEquals(networkWithPasswords.wepKeys, retrievedNetworkWithPassword.wepKeys);
        assertEquals(networkWithPasswords.enterpriseConfig.getPassword(),
                retrievedNetworkWithPassword.enterpriseConfig.getPassword());
    }

    /**
     * Verifies the linking of networks when they have the same default GW Mac address in
     * {@link WifiConfigManager#getOrCreateScanDetailCacheForNetwork(WifiConfiguration)}.
     */
    @Test
    public void testNetworkLinkUsingGwMacAddress() {
        WifiConfiguration network1 = WifiConfigurationTestUtil.createPskNetwork();
        WifiConfiguration network2 = WifiConfigurationTestUtil.createPskNetwork();
        WifiConfiguration network3 = WifiConfigurationTestUtil.createPskNetwork();
        verifyAddNetworkToWifiConfigManager(network1);
        verifyAddNetworkToWifiConfigManager(network2);
        verifyAddNetworkToWifiConfigManager(network3);

        // Set the same default GW mac address for all of the networks.
        assertTrue(mWifiConfigManager.setNetworkDefaultGwMacAddress(
                network1.networkId, TEST_DEFAULT_GW_MAC_ADDRESS));
        assertTrue(mWifiConfigManager.setNetworkDefaultGwMacAddress(
                network2.networkId, TEST_DEFAULT_GW_MAC_ADDRESS));
        assertTrue(mWifiConfigManager.setNetworkDefaultGwMacAddress(
                network3.networkId, TEST_DEFAULT_GW_MAC_ADDRESS));

        // Now create dummy scan detail corresponding to the networks.
        ScanDetail networkScanDetail1 = createScanDetailForNetwork(network1);
        ScanDetail networkScanDetail2 = createScanDetailForNetwork(network2);
        ScanDetail networkScanDetail3 = createScanDetailForNetwork(network3);

        // Now save all these scan details corresponding to each of this network and expect
        // all of these networks to be linked with each other.
        assertNotNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                networkScanDetail1));
        assertNotNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                networkScanDetail2));
        assertNotNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                networkScanDetail3));

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworks();
        for (WifiConfiguration network : retrievedNetworks) {
            assertEquals(2, network.linkedConfigurations.size());
            for (WifiConfiguration otherNetwork : retrievedNetworks) {
                if (otherNetwork == network) {
                    continue;
                }
                assertNotNull(network.linkedConfigurations.get(otherNetwork.getKey()));
            }
        }
    }

    /**
     * Verifies the linking of networks when they have scan results with same first 16 ASCII of
     * bssid in
     * {@link WifiConfigManager#getOrCreateScanDetailCacheForNetwork(WifiConfiguration)}.
     */
    @Test
    public void testNetworkLinkUsingBSSIDMatch() {
        WifiConfiguration network1 = WifiConfigurationTestUtil.createPskNetwork();
        WifiConfiguration network2 = WifiConfigurationTestUtil.createPskNetwork();
        WifiConfiguration network3 = WifiConfigurationTestUtil.createPskNetwork();
        verifyAddNetworkToWifiConfigManager(network1);
        verifyAddNetworkToWifiConfigManager(network2);
        verifyAddNetworkToWifiConfigManager(network3);

        // Create scan results with bssid which is different in only the last char.
        ScanDetail networkScanDetail1 = createScanDetailForNetwork(network1, "af:89:56:34:56:67");
        ScanDetail networkScanDetail2 = createScanDetailForNetwork(network2, "af:89:56:34:56:68");
        ScanDetail networkScanDetail3 = createScanDetailForNetwork(network3, "af:89:56:34:56:69");

        // Now save all these scan details corresponding to each of this network and expect
        // all of these networks to be linked with each other.
        assertNotNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                networkScanDetail1));
        assertNotNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                networkScanDetail2));
        assertNotNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                networkScanDetail3));

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworks();
        for (WifiConfiguration network : retrievedNetworks) {
            assertEquals(2, network.linkedConfigurations.size());
            for (WifiConfiguration otherNetwork : retrievedNetworks) {
                if (otherNetwork == network) {
                    continue;
                }
                assertNotNull(network.linkedConfigurations.get(otherNetwork.getKey()));
            }
        }
    }

    /**
     * Verifies the linking of networks does not happen for non WPA networks when they have scan
     * results with same first 16 ASCII of bssid in
     * {@link WifiConfigManager#getOrCreateScanDetailCacheForNetwork(WifiConfiguration)}.
     */
    @Test
    public void testNoNetworkLinkUsingBSSIDMatchForNonWpaNetworks() {
        WifiConfiguration network1 = WifiConfigurationTestUtil.createOpenNetwork();
        WifiConfiguration network2 = WifiConfigurationTestUtil.createPskNetwork();
        verifyAddNetworkToWifiConfigManager(network1);
        verifyAddNetworkToWifiConfigManager(network2);

        // Create scan results with bssid which is different in only the last char.
        ScanDetail networkScanDetail1 = createScanDetailForNetwork(network1, "af:89:56:34:56:67");
        ScanDetail networkScanDetail2 = createScanDetailForNetwork(network2, "af:89:56:34:56:68");

        assertNotNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                networkScanDetail1));
        assertNotNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                networkScanDetail2));

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworks();
        for (WifiConfiguration network : retrievedNetworks) {
            assertNull(network.linkedConfigurations);
        }
    }

    /**
     * Verifies the linking of networks does not happen for networks with more than
     * {@link WifiConfigManager#LINK_CONFIGURATION_MAX_SCAN_CACHE_ENTRIES} scan
     * results with same first 16 ASCII of bssid in
     * {@link WifiConfigManager#getOrCreateScanDetailCacheForNetwork(WifiConfiguration)}.
     */
    @Test
    public void testNoNetworkLinkUsingBSSIDMatchForNetworksWithHighScanDetailCacheSize() {
        WifiConfiguration network1 = WifiConfigurationTestUtil.createPskNetwork();
        WifiConfiguration network2 = WifiConfigurationTestUtil.createPskNetwork();
        verifyAddNetworkToWifiConfigManager(network1);
        verifyAddNetworkToWifiConfigManager(network2);

        // Create 7 scan results with bssid which is different in only the last char.
        String test_bssid_base = "af:89:56:34:56:6";
        int scan_result_num = 0;
        for (; scan_result_num < WifiConfigManager.LINK_CONFIGURATION_MAX_SCAN_CACHE_ENTRIES + 1;
             scan_result_num++) {
            ScanDetail networkScanDetail =
                    createScanDetailForNetwork(
                            network1, test_bssid_base + Integer.toString(scan_result_num));
            assertNotNull(
                    mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                            networkScanDetail));
        }

        // Now add 1 scan result to the other network with bssid which is different in only the
        // last char.
        ScanDetail networkScanDetail2 =
                createScanDetailForNetwork(
                        network2, test_bssid_base + Integer.toString(scan_result_num++));
        assertNotNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                networkScanDetail2));

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworks();
        for (WifiConfiguration network : retrievedNetworks) {
            assertNull(network.linkedConfigurations);
        }
    }

    /**
     * Verifies the linking of networks when they have scan results with same first 16 ASCII of
     * bssid in {@link WifiConfigManager#getOrCreateScanDetailCacheForNetwork(WifiConfiguration)}
     * and then subsequently delinked when the networks have default gateway set which do not match.
     */
    @Test
    public void testNetworkLinkUsingBSSIDMatchAndThenUnlinkDueToGwMacAddress() {
        WifiConfiguration network1 = WifiConfigurationTestUtil.createPskNetwork();
        WifiConfiguration network2 = WifiConfigurationTestUtil.createPskNetwork();
        verifyAddNetworkToWifiConfigManager(network1);
        verifyAddNetworkToWifiConfigManager(network2);

        // Create scan results with bssid which is different in only the last char.
        ScanDetail networkScanDetail1 = createScanDetailForNetwork(network1, "af:89:56:34:56:67");
        ScanDetail networkScanDetail2 = createScanDetailForNetwork(network2, "af:89:56:34:56:68");

        // Now save all these scan details corresponding to each of this network and expect
        // all of these networks to be linked with each other.
        assertNotNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                networkScanDetail1));
        assertNotNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                networkScanDetail2));

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworks();
        for (WifiConfiguration network : retrievedNetworks) {
            assertEquals(1, network.linkedConfigurations.size());
            for (WifiConfiguration otherNetwork : retrievedNetworks) {
                if (otherNetwork == network) {
                    continue;
                }
                assertNotNull(network.linkedConfigurations.get(otherNetwork.getKey()));
            }
        }

        // Now Set different GW mac address for both the networks and ensure they're unlinked.
        assertTrue(mWifiConfigManager.setNetworkDefaultGwMacAddress(
                network1.networkId, "de:ad:fe:45:23:34"));
        assertTrue(mWifiConfigManager.setNetworkDefaultGwMacAddress(
                network2.networkId, "ad:de:fe:45:23:34"));

        // Add some dummy scan results again to re-evaluate the linking of networks.
        assertNotNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                createScanDetailForNetwork(network1, "af:89:56:34:45:67")));
        assertNotNull(mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(
                createScanDetailForNetwork(network1, "af:89:56:34:45:68")));

        retrievedNetworks = mWifiConfigManager.getConfiguredNetworks();
        for (WifiConfiguration network : retrievedNetworks) {
            assertNull(network.linkedConfigurations);
        }
    }

    /**
     * Verifies the foreground user switch using {@link WifiConfigManager#handleUserSwitch(int)}
     * and ensures that any shared private networks networkId is not changed.
     * Test scenario:
     * 1. Load the shared networks from shared store and user 1 store.
     * 2. Switch to user 2 and ensure that the shared network's Id is not changed.
     */
    @Test
    public void testHandleUserSwitchDoesNotChangeSharedNetworksId() throws Exception {
        int user1 = TEST_DEFAULT_USER;
        int user2 = TEST_DEFAULT_USER + 1;
        setupUserProfiles(user2);

        int appId = 674;
        long currentTimeMs = 67823;
        when(mClock.getWallClockMillis()).thenReturn(currentTimeMs);

        // Create 3 networks. 1 for user1, 1 for user2 and 1 shared.
        final WifiConfiguration user1Network = WifiConfigurationTestUtil.createPskNetwork();
        user1Network.shared = false;
        user1Network.creatorUid = UserHandle.getUid(user1, appId);
        final WifiConfiguration user2Network = WifiConfigurationTestUtil.createPskNetwork();
        user2Network.shared = false;
        user2Network.creatorUid = UserHandle.getUid(user2, appId);
        final WifiConfiguration sharedNetwork1 = WifiConfigurationTestUtil.createPskNetwork();
        final WifiConfiguration sharedNetwork2 = WifiConfigurationTestUtil.createPskNetwork();

        // Set up the store data that is loaded initially.
        List<WifiConfiguration> sharedNetworks = new ArrayList<WifiConfiguration>() {
            {
                add(sharedNetwork1);
                add(sharedNetwork2);
            }
        };
        List<WifiConfiguration> user1Networks = new ArrayList<WifiConfiguration>() {
            {
                add(user1Network);
            }
        };
        setupStoreDataForRead(sharedNetworks, user1Networks);
        assertTrue(mWifiConfigManager.loadFromStore());
        verify(mWifiConfigStore).read();

        // Fetch the network ID's assigned to the shared networks initially.
        int sharedNetwork1Id = WifiConfiguration.INVALID_NETWORK_ID;
        int sharedNetwork2Id = WifiConfiguration.INVALID_NETWORK_ID;
        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        for (WifiConfiguration network : retrievedNetworks) {
            if (network.getKey().equals(sharedNetwork1.getKey())) {
                sharedNetwork1Id = network.networkId;
            } else if (network.getKey().equals(sharedNetwork2.getKey())) {
                sharedNetwork2Id = network.networkId;
            }
        }
        assertTrue(sharedNetwork1Id != WifiConfiguration.INVALID_NETWORK_ID);
        assertTrue(sharedNetwork2Id != WifiConfiguration.INVALID_NETWORK_ID);
        assertFalse(mWifiConfigManager.isNetworkTemporarilyDisabledByUser(TEST_SSID));

        // Set up the user 2 store data that is loaded at user switch.
        List<WifiConfiguration> user2Networks = new ArrayList<WifiConfiguration>() {
            {
                add(user2Network);
            }
        };
        setupStoreDataForUserRead(user2Networks, new HashMap<>());
        // Now switch the user to user 2 and ensure that shared network's IDs have not changed.
        when(mUserManager.isUserUnlockingOrUnlocked(UserHandle.of(user2))).thenReturn(true);
        mWifiConfigManager.handleUserSwitch(user2);
        verify(mWifiConfigStore).switchUserStoresAndRead(any(List.class));

        // Again fetch the network ID's assigned to the shared networks and ensure they have not
        // changed.
        int updatedSharedNetwork1Id = WifiConfiguration.INVALID_NETWORK_ID;
        int updatedSharedNetwork2Id = WifiConfiguration.INVALID_NETWORK_ID;
        retrievedNetworks = mWifiConfigManager.getConfiguredNetworksWithPasswords();
        for (WifiConfiguration network : retrievedNetworks) {
            if (network.getKey().equals(sharedNetwork1.getKey())) {
                updatedSharedNetwork1Id = network.networkId;
            } else if (network.getKey().equals(sharedNetwork2.getKey())) {
                updatedSharedNetwork2Id = network.networkId;
            }
        }
        assertEquals(sharedNetwork1Id, updatedSharedNetwork1Id);
        assertEquals(sharedNetwork2Id, updatedSharedNetwork2Id);
        assertFalse(mWifiConfigManager.isNetworkTemporarilyDisabledByUser(TEST_SSID));
    }

    /**
     * Verifies the foreground user switch using {@link WifiConfigManager#handleUserSwitch(int)}
     * and ensures that any old user private networks are not visible anymore.
     * Test scenario:
     * 1. Load the shared networks from shared store and user 1 store.
     * 2. Switch to user 2 and ensure that the user 1's private network has been removed.
     */
    @Test
    public void testHandleUserSwitchRemovesOldUserPrivateNetworks() throws Exception {
        int user1 = TEST_DEFAULT_USER;
        int user2 = TEST_DEFAULT_USER + 1;
        setupUserProfiles(user2);

        int appId = 674;

        // Create 3 networks. 1 for user1, 1 for user2 and 1 shared.
        final WifiConfiguration user1Network = WifiConfigurationTestUtil.createPskNetwork();
        user1Network.shared = false;
        user1Network.creatorUid = UserHandle.getUid(user1, appId);
        final WifiConfiguration user2Network = WifiConfigurationTestUtil.createPskNetwork();
        user2Network.shared = false;
        user2Network.creatorUid = UserHandle.getUid(user2, appId);
        final WifiConfiguration sharedNetwork = WifiConfigurationTestUtil.createPskNetwork();

        // Set up the store data that is loaded initially.
        List<WifiConfiguration> sharedNetworks = new ArrayList<WifiConfiguration>() {
            {
                add(sharedNetwork);
            }
        };
        List<WifiConfiguration> user1Networks = new ArrayList<WifiConfiguration>() {
            {
                add(user1Network);
            }
        };
        setupStoreDataForRead(sharedNetworks, user1Networks);
        assertTrue(mWifiConfigManager.loadFromStore());
        verify(mWifiConfigStore).read();

        // Fetch the network ID assigned to the user 1 network initially.
        int user1NetworkId = WifiConfiguration.INVALID_NETWORK_ID;
        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        for (WifiConfiguration network : retrievedNetworks) {
            if (network.getKey().equals(user1Network.getKey())) {
                user1NetworkId = network.networkId;
            }
        }

        // Set up the user 2 store data that is loaded at user switch.
        List<WifiConfiguration> user2Networks = new ArrayList<WifiConfiguration>() {
            {
                add(user2Network);
            }
        };
        setupStoreDataForUserRead(user2Networks, new HashMap<>());
        // Now switch the user to user 2 and ensure that user 1's private network has been removed.
        when(mUserManager.isUserUnlockingOrUnlocked(UserHandle.of(user2))).thenReturn(true);
        Set<Integer> removedNetworks = mWifiConfigManager.handleUserSwitch(user2);
        verify(mWifiConfigStore).switchUserStoresAndRead(any(List.class));
        assertTrue((removedNetworks.size() == 1) && (removedNetworks.contains(user1NetworkId)));

        // Set the expected networks to be |sharedNetwork| and |user2Network|.
        List<WifiConfiguration> expectedNetworks = new ArrayList<WifiConfiguration>() {
            {
                add(sharedNetwork);
                add(user2Network);
            }
        };
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                expectedNetworks, mWifiConfigManager.getConfiguredNetworksWithPasswords());

        // Send another user switch  indication with the same user 2. This should be ignored and
        // hence should not remove any new networks.
        when(mUserManager.isUserUnlockingOrUnlocked(UserHandle.of(user2))).thenReturn(true);
        removedNetworks = mWifiConfigManager.handleUserSwitch(user2);
        assertTrue(removedNetworks.isEmpty());
    }

    /**
     * Verifies the foreground user switch using {@link WifiConfigManager#handleUserSwitch(int)}
     * and ensures that user switch from a user with no private networks is handled.
     * Test scenario:
     * 1. Load the shared networks from shared store and emptu user 1 store.
     * 2. Switch to user 2 and ensure that no private networks were removed.
     */
    @Test
    public void testHandleUserSwitchWithNoOldUserPrivateNetworks() throws Exception {
        int user1 = TEST_DEFAULT_USER;
        int user2 = TEST_DEFAULT_USER + 1;
        setupUserProfiles(user2);

        int appId = 674;

        // Create 2 networks. 1 for user2 and 1 shared.
        final WifiConfiguration user2Network = WifiConfigurationTestUtil.createPskNetwork();
        user2Network.shared = false;
        user2Network.creatorUid = UserHandle.getUid(user2, appId);
        final WifiConfiguration sharedNetwork = WifiConfigurationTestUtil.createPskNetwork();

        // Set up the store data that is loaded initially.
        List<WifiConfiguration> sharedNetworks = new ArrayList<WifiConfiguration>() {
            {
                add(sharedNetwork);
            }
        };
        setupStoreDataForRead(sharedNetworks, new ArrayList<>());
        assertTrue(mWifiConfigManager.loadFromStore());
        verify(mWifiConfigStore).read();

        // Set up the user 2 store data that is loaded at user switch.
        List<WifiConfiguration> user2Networks = new ArrayList<WifiConfiguration>() {
            {
                add(user2Network);
            }
        };
        setupStoreDataForUserRead(user2Networks, new HashMap<>());
        // Now switch the user to user 2 and ensure that no private network has been removed.
        when(mUserManager.isUserUnlockingOrUnlocked(UserHandle.of(user2))).thenReturn(true);
        Set<Integer> removedNetworks = mWifiConfigManager.handleUserSwitch(user2);
        verify(mWifiConfigStore).switchUserStoresAndRead(any(List.class));
        assertTrue(removedNetworks.isEmpty());
    }

    /**
     * Verifies the foreground user switch using {@link WifiConfigManager#handleUserSwitch(int)}
     * and ensures that any non current user private networks are moved to shared store file.
     * This test simulates the following test case:
     * 1. Loads the shared networks from shared store at bootup.
     * 2. Load the private networks from user store on user 1 unlock.
     * 3. Switch to user 2 and ensure that the user 2's private network has been moved to user 2's
     * private store file.
     */
    @Test
    public void testHandleUserSwitchPushesOtherPrivateNetworksToSharedStore() throws Exception {
        int user1 = TEST_DEFAULT_USER;
        int user2 = TEST_DEFAULT_USER + 1;
        setupUserProfiles(user2);

        int appId = 674;

        // Create 3 networks. 1 for user1, 1 for user2 and 1 shared.
        final WifiConfiguration user1Network = WifiConfigurationTestUtil.createPskNetwork();
        user1Network.shared = false;
        user1Network.creatorUid = UserHandle.getUid(user1, appId);
        when(mWifiPermissionsUtil.checkNetworkSettingsPermission(user1Network.creatorUid))
                .thenReturn(false);

        final WifiConfiguration user2Network = WifiConfigurationTestUtil.createPskNetwork();
        user2Network.shared = false;
        user2Network.creatorUid = UserHandle.getUid(user2, appId);
        when(mWifiPermissionsUtil.checkNetworkSettingsPermission(user2Network.creatorUid))
                .thenReturn(false);

        final WifiConfiguration sharedNetwork = WifiConfigurationTestUtil.createPskNetwork();

        // Set up the shared store data that is loaded at bootup. User 2's private network
        // is still in shared store because they have not yet logged-in after upgrade.
        List<WifiConfiguration> sharedNetworks = new ArrayList<WifiConfiguration>() {
            {
                add(sharedNetwork);
                add(user2Network);
            }
        };
        setupStoreDataForRead(sharedNetworks, new ArrayList<>());
        assertTrue(mWifiConfigManager.loadFromStore());
        verify(mWifiConfigStore).read();

        // Set up the user store data that is loaded at user unlock.
        List<WifiConfiguration> userNetworks = new ArrayList<WifiConfiguration>() {
            {
                add(user1Network);
            }
        };
        setupStoreDataForUserRead(userNetworks, new HashMap<>());
        mWifiConfigManager.handleUserUnlock(user1);
        verify(mWifiConfigStore).switchUserStoresAndRead(any(List.class));
        // Capture the written data for the user 1 and ensure that it corresponds to what was
        // setup.
        Pair<List<WifiConfiguration>, List<WifiConfiguration>> writtenNetworkList =
                captureWriteNetworksListStoreData();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                sharedNetworks, writtenNetworkList.first);
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                userNetworks, writtenNetworkList.second);

        // Now switch the user to user2 and ensure that user 2's private network has been moved to
        // the user store.
        when(mUserManager.isUserUnlockingOrUnlocked(UserHandle.of(user2))).thenReturn(true);
        mWifiConfigManager.handleUserSwitch(user2);
        // Set the expected network list before comparing. user1Network should be in shared data.
        // Note: In the real world, user1Network will no longer be visible now because it should
        // already be in user1's private store file. But, we're purposefully exposing it
        // via |loadStoreData| to test if other user's private networks are pushed to shared store.
        List<WifiConfiguration> expectedSharedNetworks = new ArrayList<WifiConfiguration>() {
            {
                add(sharedNetwork);
                add(user1Network);
            }
        };
        List<WifiConfiguration> expectedUserNetworks = new ArrayList<WifiConfiguration>() {
            {
                add(user2Network);
            }
        };
        // Capture the first written data triggered for saving the old user's network
        // configurations.
        writtenNetworkList = captureWriteNetworksListStoreData();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                sharedNetworks, writtenNetworkList.first);
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                userNetworks, writtenNetworkList.second);

        // Now capture the next written data triggered after the switch and ensure that user 2's
        // network is now in user store data.
        writtenNetworkList = captureWriteNetworksListStoreData();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                expectedSharedNetworks, writtenNetworkList.first);
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                expectedUserNetworks, writtenNetworkList.second);
    }

    /**
     * Verify that unlocking an user that owns a legacy Passpoint configuration (which is stored
     * temporarily in the share store) will migrate it to PasspointManager and removed from
     * the list of configured networks.
     *
     * @throws Exception
     */
    @Test
    public void testHandleUserUnlockRemovePasspointConfigFromSharedConfig() throws Exception {
        int user1 = TEST_DEFAULT_USER;
        int appId = 674;

        final WifiConfiguration passpointConfig =
                WifiConfigurationTestUtil.createPasspointNetwork();
        passpointConfig.creatorUid = UserHandle.getUid(user1, appId);
        passpointConfig.isLegacyPasspointConfig = true;

        // Set up the shared store data to contain one legacy Passpoint configuration.
        List<WifiConfiguration> sharedNetworks = new ArrayList<WifiConfiguration>() {
            {
                add(passpointConfig);
            }
        };
        setupStoreDataForRead(sharedNetworks, new ArrayList<>());
        assertTrue(mWifiConfigManager.loadFromStore());
        verify(mWifiConfigStore).read();
        assertEquals(1, mWifiConfigManager.getConfiguredNetworks().size());

        // Unlock the owner of the legacy Passpoint configuration, verify it is removed from
        // the configured networks (migrated to PasspointManager).
        setupStoreDataForUserRead(new ArrayList<WifiConfiguration>(), new HashMap<>());
        mWifiConfigManager.handleUserUnlock(user1);
        verify(mWifiConfigStore).switchUserStoresAndRead(any(List.class));
        Pair<List<WifiConfiguration>, List<WifiConfiguration>> writtenNetworkList =
                captureWriteNetworksListStoreData();
        assertTrue(writtenNetworkList.first.isEmpty());
        assertTrue(writtenNetworkList.second.isEmpty());
        assertTrue(mWifiConfigManager.getConfiguredNetworks().isEmpty());
    }

    /**
     * Verifies the foreground user switch using {@link WifiConfigManager#handleUserSwitch(int)}
     * and {@link WifiConfigManager#handleUserUnlock(int)} and ensures that the new store is
     * read immediately if the user is unlocked during the switch.
     */
    @Test
    public void testHandleUserSwitchWhenUnlocked() throws Exception {
        int user1 = TEST_DEFAULT_USER;
        int user2 = TEST_DEFAULT_USER + 1;
        setupUserProfiles(user2);

        // Set up the internal data first.
        assertTrue(mWifiConfigManager.loadFromStore());

        setupStoreDataForUserRead(new ArrayList<>(), new HashMap<>());
        // user2 is unlocked and switched to foreground.
        when(mUserManager.isUserUnlockingOrUnlocked(UserHandle.of(user2))).thenReturn(true);
        mWifiConfigManager.handleUserSwitch(user2);
        // Ensure that the read was invoked.
        mContextConfigStoreMockOrder.verify(mWifiConfigStore)
                .switchUserStoresAndRead(any(List.class));
    }

    /**
     * Verifies the foreground user switch using {@link WifiConfigManager#handleUserSwitch(int)}
     * and {@link WifiConfigManager#handleUserUnlock(int)} and ensures that the new store is not
     * read until the user is unlocked.
     */
    @Test
    public void testHandleUserSwitchWhenLocked() throws Exception {
        int user1 = TEST_DEFAULT_USER;
        int user2 = TEST_DEFAULT_USER + 1;
        setupUserProfiles(user2);

        // Set up the internal data first.
        assertTrue(mWifiConfigManager.loadFromStore());

        // user2 is locked and switched to foreground.
        when(mUserManager.isUserUnlockingOrUnlocked(UserHandle.of(user2))).thenReturn(false);
        mWifiConfigManager.handleUserSwitch(user2);

        // Ensure that the read was not invoked.
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never())
                .switchUserStoresAndRead(any(List.class));

        // Now try unlocking some other user (user1), this should be ignored.
        mWifiConfigManager.handleUserUnlock(user1);
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never())
                .switchUserStoresAndRead(any(List.class));

        setupStoreDataForUserRead(new ArrayList<>(), new HashMap<>());
        // Unlock the user2 and ensure that we read the data now.
        mWifiConfigManager.handleUserUnlock(user2);
        mContextConfigStoreMockOrder.verify(mWifiConfigStore)
                .switchUserStoresAndRead(any(List.class));
    }

    /**
     * Verifies that the user stop handling using {@link WifiConfigManager#handleUserStop(int)}
     * and ensures that the store is written only when the foreground user is stopped.
     */
    @Test
    public void testHandleUserStop() throws Exception {
        int user1 = TEST_DEFAULT_USER;
        int user2 = TEST_DEFAULT_USER + 1;
        setupUserProfiles(user2);

        // Set up the internal data first.
        assertTrue(mWifiConfigManager.loadFromStore());

        // Try stopping background user2 first, this should not do anything.
        when(mUserManager.isUserUnlockingOrUnlocked(UserHandle.of(user2))).thenReturn(false);
        mWifiConfigManager.handleUserStop(user2);
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never())
                .switchUserStoresAndRead(any(List.class));

        // Now try stopping the foreground user1, this should trigger a write to store.
        mWifiConfigManager.handleUserStop(user1);
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never())
                .switchUserStoresAndRead(any(List.class));
        mContextConfigStoreMockOrder.verify(mWifiConfigStore).write(anyBoolean());
    }

    /**
     * Verifies that the user stop handling using {@link WifiConfigManager#handleUserStop(int)}
     * and ensures that the shared data is not lost when the foreground user is stopped.
     */
    @Test
    public void testHandleUserStopDoesNotClearSharedData() throws Exception {
        int user1 = TEST_DEFAULT_USER;

        //
        // Setup the database for the user before initiating stop.
        //
        int appId = 674;
        // Create 2 networks. 1 for user1, and 1 shared.
        final WifiConfiguration user1Network = WifiConfigurationTestUtil.createPskNetwork();
        user1Network.shared = false;
        user1Network.creatorUid = UserHandle.getUid(user1, appId);
        final WifiConfiguration sharedNetwork = WifiConfigurationTestUtil.createPskNetwork();

        // Set up the store data that is loaded initially.
        List<WifiConfiguration> sharedNetworks = new ArrayList<WifiConfiguration>() {
            {
                add(sharedNetwork);
            }
        };
        List<WifiConfiguration> user1Networks = new ArrayList<WifiConfiguration>() {
            {
                add(user1Network);
            }
        };
        setupStoreDataForRead(sharedNetworks, user1Networks);
        assertTrue(mWifiConfigManager.loadFromStore());
        verify(mWifiConfigStore).read();

        // Ensure that we have 2 networks in the database before the stop.
        assertEquals(2, mWifiConfigManager.getConfiguredNetworks().size());

        mWifiConfigManager.handleUserStop(user1);

        // Ensure that we only have 1 shared network in the database after the stop.
        assertEquals(1, mWifiConfigManager.getConfiguredNetworks().size());
        assertEquals(sharedNetwork.SSID, mWifiConfigManager.getConfiguredNetworks().get(0).SSID);
    }

    /**
     * Verifies the foreground user unlock via {@link WifiConfigManager#handleUserUnlock(int)}
     * results in a store read after bootup.
     */
    @Test
    public void testHandleUserUnlockAfterBootup() throws Exception {
        int user1 = TEST_DEFAULT_USER;

        // Set up the internal data first.
        assertTrue(mWifiConfigManager.loadFromStore());
        mContextConfigStoreMockOrder.verify(mWifiConfigStore).read();
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).write(anyBoolean());
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never())
                .switchUserStoresAndRead(any(List.class));

        setupStoreDataForUserRead(new ArrayList<>(), new HashMap<>());
        // Unlock the user1 (default user) for the first time and ensure that we read the data.
        mWifiConfigManager.handleUserUnlock(user1);
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).read();
        mContextConfigStoreMockOrder.verify(mWifiConfigStore)
                .switchUserStoresAndRead(any(List.class));
        mContextConfigStoreMockOrder.verify(mWifiConfigStore).write(anyBoolean());
    }

    /**
     * Verifies that the store read after bootup received after
     * foreground user unlock via {@link WifiConfigManager#handleUserUnlock(int)}
     * results in a user store read.
     */
    @Test
    public void testHandleBootupAfterUserUnlock() throws Exception {
        int user1 = TEST_DEFAULT_USER;

        // Unlock the user1 (default user) for the first time and ensure that we don't read the
        // data.
        mWifiConfigManager.handleUserUnlock(user1);
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).read();
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).write(anyBoolean());
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never())
                .switchUserStoresAndRead(any(List.class));

        setupStoreDataForUserRead(new ArrayList<WifiConfiguration>(), new HashMap<>());
        // Read from store now.
        assertTrue(mWifiConfigManager.loadFromStore());
        mContextConfigStoreMockOrder.verify(mWifiConfigStore)
                .setUserStores(any(List.class));
        mContextConfigStoreMockOrder.verify(mWifiConfigStore).read();
    }

    /**
     * Verifies that the store read after bootup received after
     * a user switch via {@link WifiConfigManager#handleUserSwitch(int)}
     * results in a user store read.
     */
    @Test
    public void testHandleBootupAfterUserSwitch() throws Exception {
        int user1 = TEST_DEFAULT_USER;
        int user2 = TEST_DEFAULT_USER + 1;
        setupUserProfiles(user2);

        // Switch from user1 to user2 and ensure that we don't read or write any data
        // (need to wait for loadFromStore invocation).
        mWifiConfigManager.handleUserSwitch(user2);
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).read();
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).write(anyBoolean());
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never())
                .switchUserStoresAndRead(any(List.class));

        // Now load from the store.
        assertTrue(mWifiConfigManager.loadFromStore());
        mContextConfigStoreMockOrder.verify(mWifiConfigStore).read();

        // Unlock the user2 and ensure that we read from the user store.
        setupStoreDataForUserRead(new ArrayList<>(), new HashMap<>());
        mWifiConfigManager.handleUserUnlock(user2);
        mContextConfigStoreMockOrder.verify(mWifiConfigStore)
                .switchUserStoresAndRead(any(List.class));
    }

    /**
     * Verifies that the store read after bootup received after
     * a previous user unlock and user switch via {@link WifiConfigManager#handleUserSwitch(int)}
     * results in a user store read.
     */
    @Test
    public void testHandleBootupAfterPreviousUserUnlockAndSwitch() throws Exception {
        int user1 = TEST_DEFAULT_USER;
        int user2 = TEST_DEFAULT_USER + 1;
        setupUserProfiles(user2);

        // Unlock the user1 (default user) for the first time and ensure that we don't read the data
        // (need to wait for loadFromStore invocation).
        mWifiConfigManager.handleUserUnlock(user1);
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).read();
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).write(anyBoolean());
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never())
                .switchUserStoresAndRead(any(List.class));

        // Switch from user1 to user2 and ensure that we don't read or write any data
        // (need to wait for loadFromStore invocation).
        mWifiConfigManager.handleUserSwitch(user2);
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).read();
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).write(anyBoolean());
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never())
                .switchUserStoresAndRead(any(List.class));

        // Now load from the store.
        assertTrue(mWifiConfigManager.loadFromStore());
        mContextConfigStoreMockOrder.verify(mWifiConfigStore).read();

        // Unlock the user2 and ensure that we read from the user store.
        setupStoreDataForUserRead(new ArrayList<>(), new HashMap<>());
        mWifiConfigManager.handleUserUnlock(user2);
        mContextConfigStoreMockOrder.verify(mWifiConfigStore)
                .switchUserStoresAndRead(any(List.class));
    }

    /**
     * Verifies that the store read after bootup received after
     * a user switch and unlock of a previous user via {@link WifiConfigManager#
     * handleUserSwitch(int)} results in a user store read.
     */
    @Test
    public void testHandleBootupAfterUserSwitchAndPreviousUserUnlock() throws Exception {
        int user1 = TEST_DEFAULT_USER;
        int user2 = TEST_DEFAULT_USER + 1;
        setupUserProfiles(user2);

        // Switch from user1 to user2 and ensure that we don't read or write any data
        // (need to wait for loadFromStore invocation).
        mWifiConfigManager.handleUserSwitch(user2);
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).read();
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).write(anyBoolean());
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never())
                .switchUserStoresAndRead(any(List.class));

        // Unlock the user1 for the first time and ensure that we don't read the data
        mWifiConfigManager.handleUserUnlock(user1);
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).read();
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).write(anyBoolean());
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never())
                .switchUserStoresAndRead(any(List.class));

        // Now load from the store.
        assertTrue(mWifiConfigManager.loadFromStore());
        mContextConfigStoreMockOrder.verify(mWifiConfigStore).read();

        // Unlock the user2 and ensure that we read from the user store.
        setupStoreDataForUserRead(new ArrayList<>(), new HashMap<>());
        mWifiConfigManager.handleUserUnlock(user2);
        mContextConfigStoreMockOrder.verify(mWifiConfigStore)
                .switchUserStoresAndRead(any(List.class));
    }

    /**
     * Verifies the foreground user unlock via {@link WifiConfigManager#handleUserUnlock(int)} does
     * not always result in a store read unless the user had switched or just booted up.
     */
    @Test
    public void testHandleUserUnlockWithoutSwitchOrBootup() throws Exception {
        int user1 = TEST_DEFAULT_USER;
        int user2 = TEST_DEFAULT_USER + 1;
        setupUserProfiles(user2);

        // Set up the internal data first.
        assertTrue(mWifiConfigManager.loadFromStore());

        setupStoreDataForUserRead(new ArrayList<>(), new HashMap<>());
        // user2 is unlocked and switched to foreground.
        when(mUserManager.isUserUnlockingOrUnlocked(UserHandle.of(user2))).thenReturn(true);
        mWifiConfigManager.handleUserSwitch(user2);
        // Ensure that the read was invoked.
        mContextConfigStoreMockOrder.verify(mWifiConfigStore)
                .switchUserStoresAndRead(any(List.class));

        // Unlock the user2 again and ensure that we don't read the data now.
        mWifiConfigManager.handleUserUnlock(user2);
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never())
                .switchUserStoresAndRead(any(List.class));
    }

    /**
     * Verifies the private network addition using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)}
     * by a non foreground user is rejected.
     */
    @Test
    public void testAddNetworkUsingBackgroundUserUId() throws Exception {
        int user2 = TEST_DEFAULT_USER + 1;
        setupUserProfiles(user2);

        int creatorUid = UserHandle.getUid(user2, 674);

        when(mWifiPermissionsUtil.checkNetworkSettingsPermission(creatorUid)).thenReturn(false);

        // Create a network for user2 try adding it. This should be rejected.
        final WifiConfiguration user2Network = WifiConfigurationTestUtil.createPskNetwork();
        NetworkUpdateResult result = addNetworkToWifiConfigManager(user2Network, creatorUid);
        assertFalse(result.isSuccess());
    }

    /**
     * Verifies the private network addition using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)}
     * by SysUI is always accepted.
     */
    @Test
    public void testAddNetworkUsingSysUiUid() throws Exception {
        // Set up the user profiles stuff. Needed for |WifiConfigurationUtil.isVisibleToAnyProfile|
        int user2 = TEST_DEFAULT_USER + 1;
        setupUserProfiles(user2);

        when(mUserManager.isUserUnlockingOrUnlocked(UserHandle.of(user2))).thenReturn(false);
        mWifiConfigManager.handleUserSwitch(user2);

        when(mWifiPermissionsUtil.checkNetworkSettingsPermission(TEST_SYSUI_UID)).thenReturn(true);

        // Create a network for user2 try adding it. This should be rejected.
        final WifiConfiguration user2Network = WifiConfigurationTestUtil.createPskNetwork();
        NetworkUpdateResult result = addNetworkToWifiConfigManager(user2Network, TEST_SYSUI_UID);
        assertTrue(result.isSuccess());
    }

    /**
     * Verifies the loading of networks using {@link WifiConfigManager#loadFromStore()}
     * attempts to read from the stores even when the store files are not present.
     */
    @Test
    public void testFreshInstallLoadFromStore() throws Exception {
        assertTrue(mWifiConfigManager.loadFromStore());

        verify(mWifiConfigStore).read();

        assertTrue(mWifiConfigManager.getConfiguredNetworksWithPasswords().isEmpty());
    }

    /**
     * Verifies the loading of networks using {@link WifiConfigManager#loadFromStore()}
     * attempts to read from the stores even if the store files are not present and the
     * user unlock already comes in.
     */
    @Test
    public void testFreshInstallLoadFromStoreAfterUserUnlock() throws Exception {
        int user1 = TEST_DEFAULT_USER;

        // Unlock the user1 (default user) for the first time and ensure that we don't read the
        // data.
        mWifiConfigManager.handleUserUnlock(user1);
        verify(mWifiConfigStore, never()).read();

        // Read from store now.
        assertTrue(mWifiConfigManager.loadFromStore());

        // Ensure that the read was invoked.
        verify(mWifiConfigStore).read();
    }

    /**
     * Verifies the user switch using {@link WifiConfigManager#handleUserSwitch(int)} is handled
     * when the store files (new or legacy) are not present.
     */
    @Test
    public void testHandleUserSwitchAfterFreshInstall() throws Exception {
        int user2 = TEST_DEFAULT_USER + 1;

        assertTrue(mWifiConfigManager.loadFromStore());
        verify(mWifiConfigStore).read();

        setupStoreDataForUserRead(new ArrayList<>(), new HashMap<>());
        // Now switch the user to user 2.
        when(mUserManager.isUserUnlockingOrUnlocked(UserHandle.of(user2))).thenReturn(true);
        mWifiConfigManager.handleUserSwitch(user2);
        // Ensure that the read was invoked.
        mContextConfigStoreMockOrder.verify(mWifiConfigStore)
                .switchUserStoresAndRead(any(List.class));
    }

    /**
     * Verifies that the last user selected network parameter is set when
     * {@link WifiConfigManager#enableNetwork(int, boolean, int)} with disableOthers flag is set
     * to true and cleared when either {@link WifiConfigManager#disableNetwork(int, int)} or
     * {@link WifiConfigManager#removeNetwork(int, int)} is invoked using the same network ID.
     */
    @Test
    public void testLastSelectedNetwork() throws Exception {
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(openNetwork);

        when(mClock.getElapsedSinceBootMillis()).thenReturn(67L);
        assertTrue(mWifiConfigManager.enableNetwork(
                result.getNetworkId(), true, TEST_CREATOR_UID, TEST_CREATOR_NAME));
        assertEquals(result.getNetworkId(), mWifiConfigManager.getLastSelectedNetwork());
        assertEquals(67, mWifiConfigManager.getLastSelectedTimeStamp());

        // Now disable the network and ensure that the last selected flag is cleared.
        assertTrue(mWifiConfigManager.disableNetwork(
                result.getNetworkId(), TEST_CREATOR_UID, TEST_CREATOR_NAME));
        assertEquals(
                WifiConfiguration.INVALID_NETWORK_ID, mWifiConfigManager.getLastSelectedNetwork());

        // Enable it again and remove the network to ensure that the last selected flag was cleared.
        assertTrue(mWifiConfigManager.enableNetwork(
                result.getNetworkId(), true, TEST_CREATOR_UID, TEST_CREATOR_NAME));
        assertEquals(result.getNetworkId(), mWifiConfigManager.getLastSelectedNetwork());
        assertEquals(openNetwork.getKey(), mWifiConfigManager.getLastSelectedNetworkConfigKey());

        assertTrue(mWifiConfigManager.removeNetwork(
                result.getNetworkId(), TEST_CREATOR_UID, TEST_CREATOR_NAME));
        assertEquals(
                WifiConfiguration.INVALID_NETWORK_ID, mWifiConfigManager.getLastSelectedNetwork());
    }

    /**
     * Verifies that all the networks for the provided app is removed when
     * {@link WifiConfigManager#removeNetworksForApp(ApplicationInfo)} is invoked.
     */
    @Test
    public void testRemoveNetworksForApp() throws Exception {
        when(mPackageManager.getNameForUid(TEST_CREATOR_UID)).thenReturn(TEST_CREATOR_NAME);

        verifyRemoveNetworksForApp();
    }

    /**
     * Verifies that all the networks for the provided app is removed when
     * {@link WifiConfigManager#removeNetworksForApp(ApplicationInfo)} is invoked.
     */
    @Test
    public void testRemoveNetworksForAppUsingSharedUid() throws Exception {
        when(mPackageManager.getNameForUid(TEST_CREATOR_UID))
                .thenReturn(TEST_CREATOR_NAME + ":" + TEST_CREATOR_UID);

        verifyRemoveNetworksForApp();
    }

    /**
     * Verifies that all the networks for the provided user is removed when
     * {@link WifiConfigManager#removeNetworksForUser(int)} is invoked.
     */
    @Test
    public void testRemoveNetworksForUser() throws Exception {
        verifyAddNetworkToWifiConfigManager(WifiConfigurationTestUtil.createOpenNetwork());
        verifyAddNetworkToWifiConfigManager(WifiConfigurationTestUtil.createPskNetwork());
        verifyAddNetworkToWifiConfigManager(WifiConfigurationTestUtil.createWepNetwork());

        assertFalse(mWifiConfigManager.getConfiguredNetworks().isEmpty());

        assertEquals(3, mWifiConfigManager.removeNetworksForUser(TEST_DEFAULT_USER).size());

        // Ensure all the networks are removed now.
        assertTrue(mWifiConfigManager.getConfiguredNetworks().isEmpty());
    }

    /**
     * Verifies that the connect choice is removed from all networks when
     * {@link WifiConfigManager#removeNetwork(int, int)} is invoked.
     */
    @Test
    public void testRemoveNetworkRemovesConnectChoice() throws Exception {
        WifiConfiguration network1 = WifiConfigurationTestUtil.createOpenNetwork();
        WifiConfiguration network2 = WifiConfigurationTestUtil.createPskNetwork();
        WifiConfiguration network3 = WifiConfigurationTestUtil.createPskNetwork();
        verifyAddNetworkToWifiConfigManager(network1);
        verifyAddNetworkToWifiConfigManager(network2);
        verifyAddNetworkToWifiConfigManager(network3);

        // Set connect choice of network 2 over network 1.
        assertTrue(
                mWifiConfigManager.setNetworkConnectChoice(
                        network1.networkId, network2.getKey()));

        WifiConfiguration retrievedNetwork =
                mWifiConfigManager.getConfiguredNetwork(network1.networkId);
        assertEquals(
                network2.getKey(),
                retrievedNetwork.getNetworkSelectionStatus().getConnectChoice());

        // Remove network 3 and ensure that the connect choice on network 1 is not removed.
        assertTrue(mWifiConfigManager.removeNetwork(
                network3.networkId, TEST_CREATOR_UID, TEST_CREATOR_NAME));
        retrievedNetwork = mWifiConfigManager.getConfiguredNetwork(network1.networkId);
        assertEquals(
                network2.getKey(),
                retrievedNetwork.getNetworkSelectionStatus().getConnectChoice());

        // Now remove network 2 and ensure that the connect choice on network 1 is removed..
        assertTrue(mWifiConfigManager.removeNetwork(
                network2.networkId, TEST_CREATOR_UID, TEST_CREATOR_NAME));
        retrievedNetwork = mWifiConfigManager.getConfiguredNetwork(network1.networkId);
        assertNotEquals(
                network2.getKey(),
                retrievedNetwork.getNetworkSelectionStatus().getConnectChoice());

        // This should have triggered 2 buffered writes. 1 for setting the connect choice, 1 for
        // clearing it after network removal.
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, times(2)).write(eq(false));
    }

    /**
     * Disabling autojoin should clear associated connect choice links.
     */
    @Test
    public void testDisableAutojoinRemovesConnectChoice() throws Exception {
        WifiConfiguration network1 = WifiConfigurationTestUtil.createOpenNetwork();
        WifiConfiguration network2 = WifiConfigurationTestUtil.createPskNetwork();
        WifiConfiguration network3 = WifiConfigurationTestUtil.createPskNetwork();
        verifyAddNetworkToWifiConfigManager(network1);
        verifyAddNetworkToWifiConfigManager(network2);
        verifyAddNetworkToWifiConfigManager(network3);

        // Set connect choice of network 2 over network 1 and network 3.
        assertTrue(
                mWifiConfigManager.setNetworkConnectChoice(
                        network1.networkId, network2.getKey()));
        assertTrue(
                mWifiConfigManager.setNetworkConnectChoice(
                        network3.networkId, network2.getKey()));

        WifiConfiguration retrievedNetwork =
                mWifiConfigManager.getConfiguredNetwork(network3.networkId);
        assertEquals(
                network2.getKey(),
                retrievedNetwork.getNetworkSelectionStatus().getConnectChoice());

        // Disable network 3
        assertTrue(mWifiConfigManager.allowAutojoin(network3.networkId, false));
        // Ensure that the connect choice on network 3 is removed.
        retrievedNetwork = mWifiConfigManager.getConfiguredNetwork(network3.networkId);
        assertEquals(
                null,
                retrievedNetwork.getNetworkSelectionStatus().getConnectChoice());
        // Ensure that the connect choice on network 1 is not removed.
        retrievedNetwork = mWifiConfigManager.getConfiguredNetwork(network1.networkId);
        assertEquals(
                network2.getKey(),
                retrievedNetwork.getNetworkSelectionStatus().getConnectChoice());
    }

    /**
     * Verifies that all the ephemeral and passpoint networks are removed when
     * {@link WifiConfigManager#removeAllEphemeralOrPasspointConfiguredNetworks()} is invoked.
     */
    @Test
    public void testRemoveAllEphemeralOrPasspointConfiguredNetworks() throws Exception {
        WifiConfiguration savedOpenNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        WifiConfiguration ephemeralNetwork = WifiConfigurationTestUtil.createEphemeralNetwork();
        WifiConfiguration passpointNetwork = WifiConfigurationTestUtil.createPasspointNetwork();

        verifyAddNetworkToWifiConfigManager(savedOpenNetwork);
        verifyAddEphemeralNetworkToWifiConfigManager(ephemeralNetwork);
        verifyAddPasspointNetworkToWifiConfigManager(passpointNetwork);

        List<WifiConfiguration> expectedConfigsBeforeRemove = new ArrayList<WifiConfiguration>() {{
                add(savedOpenNetwork);
                add(ephemeralNetwork);
                add(passpointNetwork);
            }};
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                expectedConfigsBeforeRemove, mWifiConfigManager.getConfiguredNetworks());

        assertTrue(mWifiConfigManager.removeAllEphemeralOrPasspointConfiguredNetworks());

        List<WifiConfiguration> expectedConfigsAfterRemove = new ArrayList<WifiConfiguration>() {{
                add(savedOpenNetwork);
            }};
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                expectedConfigsAfterRemove, mWifiConfigManager.getConfiguredNetworks());

        // No more ephemeral or passpoint networks to remove now.
        assertFalse(mWifiConfigManager.removeAllEphemeralOrPasspointConfiguredNetworks());
    }

    /**
     * Verifies that Passpoint network corresponding with given config key (FQDN) is removed.
     *
     * @throws Exception
     */
    @Test
    public void testRemovePasspointConfiguredNetwork() throws Exception {
        WifiConfiguration passpointNetwork = WifiConfigurationTestUtil.createPasspointNetwork();
        verifyAddPasspointNetworkToWifiConfigManager(passpointNetwork);

        assertTrue(mWifiConfigManager.removePasspointConfiguredNetwork(
                passpointNetwork.getKey()));
    }

    /**
     * Verifies that suggested network corresponding with given config key is removed.
     *
     * @throws Exception
     */
    @Test
    public void testRemoveSuggestionConfiguredNetwork() throws Exception {
        WifiConfiguration suggestedNetwork = WifiConfigurationTestUtil.createEphemeralNetwork();
        suggestedNetwork.fromWifiNetworkSuggestion = true;
        verifyAddEphemeralNetworkToWifiConfigManager(suggestedNetwork);

        assertTrue(mWifiConfigManager.removeSuggestionConfiguredNetwork(
                suggestedNetwork.getKey()));
    }

    /**
     * Verifies that the modification of a single network using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)} and ensures that any
     * updates to the network config in
     * {@link WifiKeyStore#updateNetworkKeys(WifiConfiguration, WifiConfiguration)} is reflected
     * in the internal database.
     */
    @Test
    public void testUpdateSingleNetworkWithKeysUpdate() {
        WifiConfiguration network = WifiConfigurationTestUtil.createEapNetwork();
        network.enterpriseConfig =
                WifiConfigurationTestUtil.createPEAPWifiEnterpriseConfigWithGTCPhase2();
        verifyAddNetworkToWifiConfigManager(network);

        // Now verify that network configurations match before we make any change.
        WifiConfigurationTestUtil.assertConfigurationEqualForConfigManagerAddOrUpdate(
                network,
                mWifiConfigManager.getConfiguredNetworkWithPassword(network.networkId));

        // Modify the network ca_cert field in updateNetworkKeys method during a network
        // config update.
        final String newCaCertAlias = "test";
        assertNotEquals(newCaCertAlias, network.enterpriseConfig.getCaCertificateAlias());

        doAnswer(new AnswerWithArguments() {
            public boolean answer(WifiConfiguration newConfig, WifiConfiguration existingConfig) {
                newConfig.enterpriseConfig.setCaCertificateAlias(newCaCertAlias);
                return true;
            }
        }).when(mWifiKeyStore).updateNetworkKeys(
                any(WifiConfiguration.class), any(WifiConfiguration.class));

        verifyUpdateNetworkToWifiConfigManagerWithoutIpChange(network);

        // Now verify that the keys update is reflected in the configuration fetched from internal
        // db.
        network.enterpriseConfig.setCaCertificateAlias(newCaCertAlias);
        WifiConfigurationTestUtil.assertConfigurationEqualForConfigManagerAddOrUpdate(
                network,
                mWifiConfigManager.getConfiguredNetworkWithPassword(network.networkId));
    }

    /**
     * Verifies that the dump method prints out all the saved network details with passwords masked.
     * {@link WifiConfigManager#dump(FileDescriptor, PrintWriter, String[])}.
     */
    @Test
    public void testDump() {
        WifiConfiguration pskNetwork = WifiConfigurationTestUtil.createPskNetwork();
        WifiConfiguration eapNetwork = WifiConfigurationTestUtil.createEapNetwork();
        eapNetwork.enterpriseConfig.setPassword("blah");

        verifyAddNetworkToWifiConfigManager(pskNetwork);
        verifyAddNetworkToWifiConfigManager(eapNetwork);

        StringWriter stringWriter = new StringWriter();
        mWifiConfigManager.dump(
                new FileDescriptor(), new PrintWriter(stringWriter), new String[0]);
        String dumpString = stringWriter.toString();

        // Ensure that the network SSIDs were dumped out.
        assertTrue(dumpString.contains(pskNetwork.SSID));
        assertTrue(dumpString.contains(eapNetwork.SSID));

        // Ensure that the network passwords were not dumped out.
        assertFalse(dumpString.contains(pskNetwork.preSharedKey));
        assertFalse(dumpString.contains(eapNetwork.enterpriseConfig.getPassword()));
    }

    /**
     * Verifies the ordering of network list generated using
     * {@link WifiConfigManager#retrieveHiddenNetworkList()}.
     */
    @Test
    public void testRetrieveHiddenList() {
        // Create and add 3 networks.
        WifiConfiguration network1 = WifiConfigurationTestUtil.createWepHiddenNetwork();
        WifiConfiguration network2 = WifiConfigurationTestUtil.createPskHiddenNetwork();
        WifiConfiguration network3 = WifiConfigurationTestUtil.createOpenHiddenNetwork();
        verifyAddNetworkToWifiConfigManager(network1);
        verifyAddNetworkToWifiConfigManager(network2);
        verifyAddNetworkToWifiConfigManager(network3);
        mWifiConfigManager.updateNetworkAfterConnect(network3.networkId);

        // Now set scan results of network2 to set the corresponding
        // {@link NetworkSelectionStatus#mSeenInLastQualifiedNetworkSelection} field.
        assertTrue(mWifiConfigManager.setNetworkCandidateScanResult(network2.networkId,
                createScanDetailForNetwork(network2).getScanResult(), 54));

        // Retrieve the hidden network list & verify the order of the networks returned.
        List<WifiScanner.ScanSettings.HiddenNetwork> hiddenNetworks =
                mWifiConfigManager.retrieveHiddenNetworkList();
        assertEquals(3, hiddenNetworks.size());
        assertEquals(network3.SSID, hiddenNetworks.get(0).ssid);
        assertEquals(network2.SSID, hiddenNetworks.get(1).ssid);
        assertEquals(network1.SSID, hiddenNetworks.get(2).ssid);
    }

    /**
     * Verifies the addition of network configurations using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)} with same SSID and
     * default key mgmt does not add duplicate network configs.
     */
    @Test
    public void testAddMultipleNetworksWithSameSSIDAndDefaultKeyMgmt() {
        final String ssid = "\"test_blah\"";
        // Add a network with the above SSID and default key mgmt and ensure it was added
        // successfully.
        WifiConfiguration network1 = new WifiConfiguration();
        network1.SSID = ssid;
        NetworkUpdateResult result = addNetworkToWifiConfigManager(network1);
        assertTrue(result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID);
        assertTrue(result.isNewNetwork());

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        assertEquals(1, retrievedNetworks.size());
        WifiConfigurationTestUtil.assertConfigurationEqualForConfigManagerAddOrUpdate(
                network1, retrievedNetworks.get(0));

        // Now add a second network with the same SSID and default key mgmt and ensure that it
        // didn't add a new duplicate network.
        WifiConfiguration network2 = new WifiConfiguration();
        network2.SSID = ssid;
        result = addNetworkToWifiConfigManager(network2);
        assertTrue(result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID);
        assertFalse(result.isNewNetwork());

        retrievedNetworks = mWifiConfigManager.getConfiguredNetworksWithPasswords();
        assertEquals(1, retrievedNetworks.size());
        WifiConfigurationTestUtil.assertConfigurationEqualForConfigManagerAddOrUpdate(
                network2, retrievedNetworks.get(0));
    }

    /**
     * Verifies the addition of network configurations using
     * {@link WifiConfigManager#addOrUpdateNetwork(WifiConfiguration, int)} with same SSID and
     * different key mgmt should add different network configs.
     */
    @Test
    public void testAddMultipleNetworksWithSameSSIDAndDifferentKeyMgmt() {
        final String ssid = "\"test_blah\"";
        // Add a network with the above SSID and WPA_PSK key mgmt and ensure it was added
        // successfully.
        WifiConfiguration network1 = new WifiConfiguration();
        network1.SSID = ssid;
        network1.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);
        network1.preSharedKey = "\"test_blah\"";
        NetworkUpdateResult result = addNetworkToWifiConfigManager(network1);
        assertTrue(result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID);
        assertTrue(result.isNewNetwork());

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        assertEquals(1, retrievedNetworks.size());
        WifiConfigurationTestUtil.assertConfigurationEqualForConfigManagerAddOrUpdate(
                network1, retrievedNetworks.get(0));

        // Now add a second network with the same SSID and NONE key mgmt and ensure that it
        // does add a new network.
        WifiConfiguration network2 = new WifiConfiguration();
        network2.SSID = ssid;
        network2.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
        result = addNetworkToWifiConfigManager(network2);
        assertTrue(result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID);
        assertTrue(result.isNewNetwork());

        retrievedNetworks = mWifiConfigManager.getConfiguredNetworksWithPasswords();
        assertEquals(2, retrievedNetworks.size());
        List<WifiConfiguration> networks = Arrays.asList(network1, network2);
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);
    }

    /**
     * Verifies that adding a network with a proxy, without having permission OVERRIDE_WIFI_CONFIG,
     * holding device policy, or profile owner policy fails.
     */
    @Test
    public void testAddNetworkWithProxyFails() {
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false, // withNetworkSettings
                false, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                WifiConfigurationTestUtil.createDHCPIpConfigurationWithPacProxy(),
                false, // assertSuccess
                WifiConfiguration.INVALID_NETWORK_ID); // Update networkID
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false, // withNetworkSettings
                false, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                WifiConfigurationTestUtil.createDHCPIpConfigurationWithStaticProxy(),
                false, // assertSuccess
                WifiConfiguration.INVALID_NETWORK_ID); // Update networkID
    }

    /**
     * Verifies that adding a network with a PAC or STATIC proxy with permission
     * OVERRIDE_WIFI_CONFIG is successful
     */
    @Test
    public void testAddNetworkWithProxyWithConfOverride() {
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                true,  // withNetworkSettings
                false, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                WifiConfigurationTestUtil.createDHCPIpConfigurationWithPacProxy(),
                true, // assertSuccess
                WifiConfiguration.INVALID_NETWORK_ID); // Update networkID
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                true,  // withNetworkSettings
                false, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                WifiConfigurationTestUtil.createDHCPIpConfigurationWithStaticProxy(),
                true, // assertSuccess
                WifiConfiguration.INVALID_NETWORK_ID); // Update networkID
    }

    /**
     * Verifies that adding a network with a PAC or STATIC proxy, while holding policy
     * {@link DeviceAdminInfo.USES_POLICY_PROFILE_OWNER} is successful
     */
    @Test
    public void testAddNetworkWithProxyAsProfileOwner() {
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false,  // withNetworkSettings
                true, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                WifiConfigurationTestUtil.createDHCPIpConfigurationWithPacProxy(),
                true, // assertSuccess
                WifiConfiguration.INVALID_NETWORK_ID); // Update networkID
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false,  // withNetworkSettings
                true, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                WifiConfigurationTestUtil.createDHCPIpConfigurationWithStaticProxy(),
                true, // assertSuccess
                WifiConfiguration.INVALID_NETWORK_ID); // Update networkID
    }
    /**
     * Verifies that adding a network with a PAC or STATIC proxy, while holding policy
     * {@link DeviceAdminInfo.USES_POLICY_DEVICE_OWNER} is successful
     */
    @Test
    public void testAddNetworkWithProxyAsDeviceOwner() {
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false,  // withNetworkSettings
                false, // withProfileOwnerPolicy
                true, // withDeviceOwnerPolicy
                WifiConfigurationTestUtil.createDHCPIpConfigurationWithPacProxy(),
                true, // assertSuccess
                WifiConfiguration.INVALID_NETWORK_ID); // Update networkID
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false,  // withNetworkSettings
                false, // withProfileOwnerPolicy
                true, // withDeviceOwnerPolicy
                WifiConfigurationTestUtil.createDHCPIpConfigurationWithStaticProxy(),
                true, // assertSuccess
                WifiConfiguration.INVALID_NETWORK_ID); // Update networkID
    }

    /**
     * Verifies that adding a network with a PAC or STATIC proxy, while having the
     * {@link android.Manifest.permission#NETWORK_MANAGED_PROVISIONING} permission is successful
     */
    @Test
    public void testAddNetworkWithProxyWithNetworkManagedPermission() {
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false, // withNetworkSettings
                false, // withNetworkSetupWizard
                true, // withNetworkManagedProvisioning
                false, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                WifiConfigurationTestUtil.createDHCPIpConfigurationWithPacProxy(),
                true, // assertSuccess
                WifiConfiguration.INVALID_NETWORK_ID); // Update networkID
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false,  // withNetworkSettings
                false, // withNetworkSetupWizard
                true, // withNetworkManagedProvisioning
                false, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                WifiConfigurationTestUtil.createDHCPIpConfigurationWithStaticProxy(),
                true, // assertSuccess
                WifiConfiguration.INVALID_NETWORK_ID); // Update networkID
    }

    /**
     * Verifies that updating a network (that has no proxy) and adding a PAC or STATIC proxy fails
     * without being able to override configs, or holding Device or Profile owner policies.
     */
    @Test
    public void testUpdateNetworkAddProxyFails() {
        WifiConfiguration network = WifiConfigurationTestUtil.createOpenHiddenNetwork();
        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(network);
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false, // withNetworkSettings
                false, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                WifiConfigurationTestUtil.createDHCPIpConfigurationWithPacProxy(),
                false, // assertSuccess
                result.getNetworkId()); // Update networkID
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false, // withNetworkSettings
                false, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                WifiConfigurationTestUtil.createDHCPIpConfigurationWithStaticProxy(),
                false, // assertSuccess
                result.getNetworkId()); // Update networkID
    }
    /**
     * Verifies that updating a network and adding a proxy is successful in the cases where app can
     * override configs, holds policy {@link DeviceAdminInfo.USES_POLICY_PROFILE_OWNER},
     * and holds policy {@link DeviceAdminInfo.USES_POLICY_DEVICE_OWNER}, and that it fails
     * otherwise.
     */
    @Test
    public void testUpdateNetworkAddProxyWithPermissionAndSystem() {
        // Testing updating network with uid permission OVERRIDE_WIFI_CONFIG
        WifiConfiguration network = WifiConfigurationTestUtil.createOpenHiddenNetwork();
        NetworkUpdateResult result = addNetworkToWifiConfigManager(network, TEST_CREATOR_UID);
        assertTrue(result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID);
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                true, // withNetworkSettings
                false, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                WifiConfigurationTestUtil.createDHCPIpConfigurationWithPacProxy(),
                true, // assertSuccess
                result.getNetworkId()); // Update networkID

        network = WifiConfigurationTestUtil.createOpenHiddenNetwork();
        result = addNetworkToWifiConfigManager(network, TEST_CREATOR_UID);
        assertTrue(result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID);
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false, // withNetworkSettings
                true, // withNetworkSetupWizard
                false, false, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                WifiConfigurationTestUtil.createDHCPIpConfigurationWithPacProxy(),
                true, // assertSuccess
                result.getNetworkId()); // Update networkID

        // Testing updating network with proxy while holding Profile Owner policy
        network = WifiConfigurationTestUtil.createOpenHiddenNetwork();
        result = addNetworkToWifiConfigManager(network, TEST_NO_PERM_UID);
        assertTrue(result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID);
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false, // withNetworkSettings
                true, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                WifiConfigurationTestUtil.createDHCPIpConfigurationWithPacProxy(),
                true, // assertSuccess
                result.getNetworkId()); // Update networkID

        // Testing updating network with proxy while holding Device Owner Policy
        network = WifiConfigurationTestUtil.createOpenHiddenNetwork();
        result = addNetworkToWifiConfigManager(network, TEST_NO_PERM_UID);
        assertTrue(result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID);
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false, // withNetworkSettings
                false, // withProfileOwnerPolicy
                true, // withDeviceOwnerPolicy
                WifiConfigurationTestUtil.createDHCPIpConfigurationWithPacProxy(),
                true, // assertSuccess
                result.getNetworkId()); // Update networkID
    }

    /**
     * Verifies that updating a network that has a proxy without changing the proxy, can succeed
     * without proxy specific permissions.
     */
    @Test
    public void testUpdateNetworkUnchangedProxy() {
        IpConfiguration ipConf = WifiConfigurationTestUtil.createDHCPIpConfigurationWithPacProxy();
        // First create a WifiConfiguration with proxy
        NetworkUpdateResult result = verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                        false, // withNetworkSettings
                        true, // withProfileOwnerPolicy
                        false, // withDeviceOwnerPolicy
                        ipConf,
                        true, // assertSuccess
                        WifiConfiguration.INVALID_NETWORK_ID); // Update networkID
        // Update the network while using the same ipConf, and no proxy specific permissions
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                        false, // withNetworkSettings
                        false, // withProfileOwnerPolicy
                        false, // withDeviceOwnerPolicy
                        ipConf,
                        true, // assertSuccess
                        result.getNetworkId()); // Update networkID
    }

    /**
     * Verifies that updating a network with a different proxy succeeds in the cases where app can
     * override configs, holds policy {@link DeviceAdminInfo.USES_POLICY_PROFILE_OWNER},
     * and holds policy {@link DeviceAdminInfo.USES_POLICY_DEVICE_OWNER}, and that it fails
     * otherwise.
     */
    @Test
    public void testUpdateNetworkDifferentProxy() {
        // Create two proxy configurations of the same type, but different values
        IpConfiguration ipConf1 =
                WifiConfigurationTestUtil.createDHCPIpConfigurationWithSpecificProxy(
                        WifiConfigurationTestUtil.STATIC_PROXY_SETTING,
                        TEST_STATIC_PROXY_HOST_1,
                        TEST_STATIC_PROXY_PORT_1,
                        TEST_STATIC_PROXY_EXCLUSION_LIST_1,
                        TEST_PAC_PROXY_LOCATION_1);
        IpConfiguration ipConf2 =
                WifiConfigurationTestUtil.createDHCPIpConfigurationWithSpecificProxy(
                        WifiConfigurationTestUtil.STATIC_PROXY_SETTING,
                        TEST_STATIC_PROXY_HOST_2,
                        TEST_STATIC_PROXY_PORT_2,
                        TEST_STATIC_PROXY_EXCLUSION_LIST_2,
                        TEST_PAC_PROXY_LOCATION_2);

        // Update with Conf Override
        NetworkUpdateResult result = verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                true, // withNetworkSettings
                false, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                ipConf1,
                true, // assertSuccess
                WifiConfiguration.INVALID_NETWORK_ID); // Update networkID
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                true, // withNetworkSettings
                false, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                ipConf2,
                true, // assertSuccess
                result.getNetworkId()); // Update networkID

        // Update as Device Owner
        result = verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false, // withNetworkSettings
                false, // withProfileOwnerPolicy
                true, // withDeviceOwnerPolicy
                ipConf1,
                true, // assertSuccess
                WifiConfiguration.INVALID_NETWORK_ID); // Update networkID
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false, // withNetworkSettings
                false, // withProfileOwnerPolicy
                true, // withDeviceOwnerPolicy
                ipConf2,
                true, // assertSuccess
                result.getNetworkId()); // Update networkID

        // Update as Profile Owner
        result = verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false, // withNetworkSettings
                true, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                ipConf1,
                true, // assertSuccess
                WifiConfiguration.INVALID_NETWORK_ID); // Update networkID
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false, // withNetworkSettings
                true, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                ipConf2,
                true, // assertSuccess
                result.getNetworkId()); // Update networkID

        // Update with no permissions (should fail)
        result = verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false, // withNetworkSettings
                true, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                ipConf1,
                true, // assertSuccess
                WifiConfiguration.INVALID_NETWORK_ID); // Update networkID
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false, // withNetworkSettings
                false, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                ipConf2,
                false, // assertSuccess
                result.getNetworkId()); // Update networkID
    }
    /**
     * Verifies that updating a network removing its proxy succeeds in the cases where app can
     * override configs, holds policy {@link DeviceAdminInfo.USES_POLICY_PROFILE_OWNER},
     * and holds policy {@link DeviceAdminInfo.USES_POLICY_DEVICE_OWNER}, and that it fails
     * otherwise.
     */
    @Test
    public void testUpdateNetworkRemoveProxy() {
        // Create two different IP configurations, one with a proxy and another without.
        IpConfiguration ipConf1 =
                WifiConfigurationTestUtil.createDHCPIpConfigurationWithSpecificProxy(
                        WifiConfigurationTestUtil.STATIC_PROXY_SETTING,
                        TEST_STATIC_PROXY_HOST_1,
                        TEST_STATIC_PROXY_PORT_1,
                        TEST_STATIC_PROXY_EXCLUSION_LIST_1,
                        TEST_PAC_PROXY_LOCATION_1);
        IpConfiguration ipConf2 =
                WifiConfigurationTestUtil.createDHCPIpConfigurationWithSpecificProxy(
                        WifiConfigurationTestUtil.NONE_PROXY_SETTING,
                        TEST_STATIC_PROXY_HOST_2,
                        TEST_STATIC_PROXY_PORT_2,
                        TEST_STATIC_PROXY_EXCLUSION_LIST_2,
                        TEST_PAC_PROXY_LOCATION_2);

        // Update with Conf Override
        NetworkUpdateResult result = verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                true, // withNetworkSettings
                false, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                ipConf1,
                true, // assertSuccess
                WifiConfiguration.INVALID_NETWORK_ID); // Update networkID
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                true, // withNetworkSettings
                false, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                ipConf2,
                true, // assertSuccess
                result.getNetworkId()); // Update networkID

        // Update as Device Owner
        result = verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false, // withNetworkSettings
                false, // withProfileOwnerPolicy
                true, // withDeviceOwnerPolicy
                ipConf1,
                true, // assertSuccess
                WifiConfiguration.INVALID_NETWORK_ID); // Update networkID
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false, // withNetworkSettings
                false, // withProfileOwnerPolicy
                true, // withDeviceOwnerPolicy
                ipConf2,
                true, // assertSuccess
                result.getNetworkId()); // Update networkID

        // Update as Profile Owner
        result = verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false, // withNetworkSettings
                true, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                ipConf1,
                true, // assertSuccess
                WifiConfiguration.INVALID_NETWORK_ID); // Update networkID
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false, // withNetworkSettings
                true, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                ipConf2,
                true, // assertSuccess
                result.getNetworkId()); // Update networkID

        // Update with no permissions (should fail)
        result = verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false, // withNetworkSettings
                true, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                ipConf1,
                true, // assertSuccess
                WifiConfiguration.INVALID_NETWORK_ID); // Update networkID
        verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
                false, // withNetworkSettings
                false, // withProfileOwnerPolicy
                false, // withDeviceOwnerPolicy
                ipConf2,
                false, // assertSuccess
                result.getNetworkId()); // Update networkID
    }

    /**
     * Verifies that the app specified BSSID is converted and saved in lower case.
     */
    @Test
    public void testAppSpecifiedBssidIsSavedInLowerCase() {
        final String bssid = "0A:08:5C:BB:89:6D"; // upper case
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        openNetwork.BSSID = bssid;

        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(openNetwork);

        WifiConfiguration retrievedNetwork = mWifiConfigManager.getConfiguredNetwork(
                result.getNetworkId());

        assertNotEquals(retrievedNetwork.BSSID, bssid);
        assertEquals(retrievedNetwork.BSSID, bssid.toLowerCase());
    }

    /**
     * Verifies that the method resetSimNetworks updates SIM presence status and SIM configs.
     */
    @Test
    public void testResetSimNetworks() {
        String expectedIdentity = "13214561234567890@wlan.mnc456.mcc321.3gppnetwork.org";
        when(mDataTelephonyManager.getSubscriberId()).thenReturn("3214561234567890");
        when(mDataTelephonyManager.getSimState()).thenReturn(TelephonyManager.SIM_STATE_READY);
        when(mDataTelephonyManager.getSimOperator()).thenReturn("321456");
        when(mDataTelephonyManager.getCarrierInfoForImsiEncryption(anyInt())).thenReturn(null);
        List<SubscriptionInfo> subList = new ArrayList<>() {{
                add(mock(SubscriptionInfo.class));
            }};
        when(mSubscriptionManager.getActiveSubscriptionInfoList()).thenReturn(subList);
        when(mSubscriptionManager.getActiveSubscriptionIdList())
                .thenReturn(new int[]{DATA_SUBID});

        WifiConfiguration network = WifiConfigurationTestUtil.createEapNetwork();
        WifiConfiguration simNetwork = WifiConfigurationTestUtil.createEapNetwork(
                WifiEnterpriseConfig.Eap.SIM, WifiEnterpriseConfig.Phase2.NONE);
        WifiConfiguration peapSimNetwork = WifiConfigurationTestUtil.createEapNetwork(
                WifiEnterpriseConfig.Eap.PEAP, WifiEnterpriseConfig.Phase2.SIM);
        network.enterpriseConfig.setIdentity("identity1");
        network.enterpriseConfig.setAnonymousIdentity("anonymous_identity1");
        simNetwork.enterpriseConfig.setIdentity("identity2");
        simNetwork.enterpriseConfig.setAnonymousIdentity("anonymous_identity2");
        peapSimNetwork.enterpriseConfig.setIdentity("identity3");
        peapSimNetwork.enterpriseConfig.setAnonymousIdentity("anonymous_identity3");
        verifyAddNetworkToWifiConfigManager(network);
        verifyAddNetworkToWifiConfigManager(simNetwork);
        verifyAddNetworkToWifiConfigManager(peapSimNetwork);
        MockitoSession mockSession = ExtendedMockito.mockitoSession()
                .mockStatic(SubscriptionManager.class)
                .startMocking();
        when(SubscriptionManager.getDefaultDataSubscriptionId()).thenReturn(DATA_SUBID);
        when(SubscriptionManager.isValidSubscriptionId(anyInt())).thenReturn(true);

        // SIM was removed, resetting SIM Networks
        mWifiConfigManager.resetSimNetworks();

        // Verify SIM configs are reset and non-SIM configs are not changed.
        WifiConfigurationTestUtil.assertConfigurationEqualForConfigManagerAddOrUpdate(
                network,
                mWifiConfigManager.getConfiguredNetworkWithPassword(network.networkId));
        WifiConfiguration retrievedSimNetwork =
                mWifiConfigManager.getConfiguredNetwork(simNetwork.networkId);
        assertEquals("", retrievedSimNetwork.enterpriseConfig.getAnonymousIdentity());
        assertEquals("", retrievedSimNetwork.enterpriseConfig.getIdentity());
        WifiConfiguration retrievedPeapSimNetwork =
                mWifiConfigManager.getConfiguredNetwork(peapSimNetwork.networkId);
        assertEquals(expectedIdentity, retrievedPeapSimNetwork.enterpriseConfig.getIdentity());
        assertNotEquals("", retrievedPeapSimNetwork.enterpriseConfig.getAnonymousIdentity());

        mockSession.finishMocking();
    }

    /**
     * {@link WifiConfigManager#resetSimNetworks()} should reset all non-PEAP SIM networks, no
     * matter if {@link WifiCarrierInfoManager#getSimIdentity()} returns null or not.
     */
    @Test
    public void testResetSimNetworks_getSimIdentityNull_shouldResetAllNonPeapSimIdentities() {
        when(mDataTelephonyManager.getSubscriberId()).thenReturn("");
        when(mDataTelephonyManager.getSimState()).thenReturn(TelephonyManager.SIM_STATE_READY);
        when(mDataTelephonyManager.getSimOperator()).thenReturn("");
        when(mDataTelephonyManager.getCarrierInfoForImsiEncryption(anyInt())).thenReturn(null);
        List<SubscriptionInfo> subList = new ArrayList<>() {{
                add(mock(SubscriptionInfo.class));
            }};
        when(mSubscriptionManager.getActiveSubscriptionInfoList()).thenReturn(subList);
        when(mSubscriptionManager.getActiveSubscriptionIdList())
                .thenReturn(new int[]{DATA_SUBID});

        WifiConfiguration peapSimNetwork = WifiConfigurationTestUtil.createEapNetwork(
                WifiEnterpriseConfig.Eap.PEAP, WifiEnterpriseConfig.Phase2.SIM);
        peapSimNetwork.enterpriseConfig.setIdentity("identity_peap");
        peapSimNetwork.enterpriseConfig.setAnonymousIdentity("anonymous_identity_peap");
        verifyAddNetworkToWifiConfigManager(peapSimNetwork);

        WifiConfiguration network = WifiConfigurationTestUtil.createEapNetwork();
        network.enterpriseConfig.setIdentity("identity");
        network.enterpriseConfig.setAnonymousIdentity("anonymous_identity");
        verifyAddNetworkToWifiConfigManager(network);

        WifiConfiguration simNetwork = WifiConfigurationTestUtil.createEapNetwork(
                WifiEnterpriseConfig.Eap.SIM, WifiEnterpriseConfig.Phase2.NONE);
        simNetwork.enterpriseConfig.setIdentity("identity_eap_sim");
        simNetwork.enterpriseConfig.setAnonymousIdentity("anonymous_identity_eap_sim");
        verifyAddNetworkToWifiConfigManager(simNetwork);
        MockitoSession mockSession = ExtendedMockito.mockitoSession()
                .mockStatic(SubscriptionManager.class)
                .startMocking();
        when(SubscriptionManager.getDefaultDataSubscriptionId()).thenReturn(DATA_SUBID);
        when(SubscriptionManager.isValidSubscriptionId(anyInt())).thenReturn(true);

        // SIM was removed, resetting SIM Networks
        mWifiConfigManager.resetSimNetworks();

        // EAP non-SIM network should be unchanged
        WifiConfigurationTestUtil.assertConfigurationEqualForConfigManagerAddOrUpdate(
                network, mWifiConfigManager.getConfiguredNetworkWithPassword(network.networkId));
        // EAP-SIM network should have identity & anonymous identity reset
        WifiConfiguration retrievedSimNetwork =
                mWifiConfigManager.getConfiguredNetwork(simNetwork.networkId);
        assertEquals("", retrievedSimNetwork.enterpriseConfig.getAnonymousIdentity());
        assertEquals("", retrievedSimNetwork.enterpriseConfig.getIdentity());
        // PEAP network should have unchanged identity & anonymous identity
        WifiConfiguration retrievedPeapSimNetwork =
                mWifiConfigManager.getConfiguredNetwork(peapSimNetwork.networkId);
        assertEquals("identity_peap", retrievedPeapSimNetwork.enterpriseConfig.getIdentity());
        assertEquals("anonymous_identity_peap",
                retrievedPeapSimNetwork.enterpriseConfig.getAnonymousIdentity());

        mockSession.finishMocking();
    }

    /**
     * Verifies that SIM configs are reset on {@link WifiConfigManager#loadFromStore()}.
     */
    @Test
    public void testLoadFromStoreResetsSimIdentity() {
        when(mDataTelephonyManager.getSubscriberId()).thenReturn("3214561234567890");
        when(mDataTelephonyManager.getSimState()).thenReturn(TelephonyManager.SIM_STATE_READY);
        when(mDataTelephonyManager.getSimOperator()).thenReturn("321456");
        when(mDataTelephonyManager.getCarrierInfoForImsiEncryption(anyInt())).thenReturn(null);

        WifiConfiguration simNetwork = WifiConfigurationTestUtil.createEapNetwork(
                WifiEnterpriseConfig.Eap.SIM, WifiEnterpriseConfig.Phase2.NONE);
        simNetwork.enterpriseConfig.setIdentity("identity");
        simNetwork.enterpriseConfig.setAnonymousIdentity("anonymous_identity");

        WifiConfiguration peapSimNetwork = WifiConfigurationTestUtil.createEapNetwork(
                WifiEnterpriseConfig.Eap.PEAP, WifiEnterpriseConfig.Phase2.NONE);
        peapSimNetwork.enterpriseConfig.setIdentity("identity");
        peapSimNetwork.enterpriseConfig.setAnonymousIdentity("anonymous_identity");

        // Set up the store data.
        List<WifiConfiguration> sharedNetworks = new ArrayList<WifiConfiguration>() {
            {
                add(simNetwork);
                add(peapSimNetwork);
            }
        };
        setupStoreDataForRead(sharedNetworks, new ArrayList<>());

        // read from store now
        assertTrue(mWifiConfigManager.loadFromStore());

        // assert that the expected identities are reset
        WifiConfiguration retrievedSimNetwork =
                mWifiConfigManager.getConfiguredNetwork(simNetwork.networkId);
        assertEquals("", retrievedSimNetwork.enterpriseConfig.getIdentity());
        assertEquals("", retrievedSimNetwork.enterpriseConfig.getAnonymousIdentity());

        WifiConfiguration retrievedPeapNetwork =
                mWifiConfigManager.getConfiguredNetwork(peapSimNetwork.networkId);
        assertEquals("identity", retrievedPeapNetwork.enterpriseConfig.getIdentity());
        assertEquals("anonymous_identity",
                retrievedPeapNetwork.enterpriseConfig.getAnonymousIdentity());
    }

    /**
     * Verifies the deletion of ephemeral network using
     * {@link WifiConfigManager#userTemporarilyDisabledNetwork(String)}.
     */
    @Test
    public void testUserDisableNetwork() throws Exception {
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(openNetwork);
        verifyAddNetworkToWifiConfigManager(openNetwork);
        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);

        verifyExpiryOfTimeout(openNetwork);
    }

    /**
     * Verifies the disconnection of Passpoint network using
     * {@link WifiConfigManager#userTemporarilyDisabledNetwork(String)}.
     */
    @Test
    public void testDisablePasspointNetwork() throws Exception {
        WifiConfiguration passpointNetwork = WifiConfigurationTestUtil.createPasspointNetwork();

        verifyAddPasspointNetworkToWifiConfigManager(passpointNetwork);

        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(passpointNetwork);

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);

        verifyExpiryOfTimeout(passpointNetwork);
    }

    /**
     * Verifies the disconnection of Passpoint network using
     * {@link WifiConfigManager#userTemporarilyDisabledNetwork(String)} and ensures that any user
     * choice set over other networks is removed.
     */
    @Test
    public void testDisablePasspointNetworkRemovesUserChoice() throws Exception {
        WifiConfiguration passpointNetwork = WifiConfigurationTestUtil.createPasspointNetwork();
        WifiConfiguration savedNetwork = WifiConfigurationTestUtil.createOpenNetwork();

        verifyAddNetworkToWifiConfigManager(savedNetwork);
        verifyAddPasspointNetworkToWifiConfigManager(passpointNetwork);

        // Set connect choice of passpoint network over saved network.
        assertTrue(
                mWifiConfigManager.setNetworkConnectChoice(
                        savedNetwork.networkId, passpointNetwork.getKey()));

        WifiConfiguration retrievedSavedNetwork =
                mWifiConfigManager.getConfiguredNetwork(savedNetwork.networkId);
        assertEquals(
                passpointNetwork.getKey(),
                retrievedSavedNetwork.getNetworkSelectionStatus().getConnectChoice());

        // Disable the passpoint network & ensure the user choice is now removed from saved network.
        mWifiConfigManager.userTemporarilyDisabledNetwork(passpointNetwork.FQDN, TEST_UPDATE_UID);

        retrievedSavedNetwork = mWifiConfigManager.getConfiguredNetwork(savedNetwork.networkId);
        assertNull(retrievedSavedNetwork.getNetworkSelectionStatus().getConnectChoice());
    }

    @Test
    public void  testUserEnableDisabledNetwork() {
        when(mWifiPermissionsUtil.checkNetworkSettingsPermission(anyInt())).thenReturn(true);
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(openNetwork);
        verifyAddNetworkToWifiConfigManager(openNetwork);
        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);

        mWifiConfigManager.userTemporarilyDisabledNetwork(openNetwork.SSID, TEST_UPDATE_UID);
        assertTrue(mWifiConfigManager.isNetworkTemporarilyDisabledByUser(openNetwork.SSID));
        mWifiConfigManager.userEnabledNetwork(retrievedNetworks.get(0).networkId);
        assertFalse(mWifiConfigManager.isNetworkTemporarilyDisabledByUser(openNetwork.SSID));
        verify(mWifiMetrics).logUserActionEvent(eq(UserActionEvent.EVENT_DISCONNECT_WIFI),
                anyInt());
    }

    @Test
    public void testUserAddOrUpdateSavedNetworkEnableNetwork() {
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(openNetwork);
        mWifiConfigManager.userTemporarilyDisabledNetwork(openNetwork.SSID, TEST_UPDATE_UID);
        assertTrue(mWifiConfigManager.isNetworkTemporarilyDisabledByUser(openNetwork.SSID));

        verifyAddNetworkToWifiConfigManager(openNetwork);
        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);
        assertFalse(mWifiConfigManager.isNetworkTemporarilyDisabledByUser(openNetwork.SSID));
    }

    @Test
    public void testUserAddPasspointNetworkEnableNetwork() {
        WifiConfiguration passpointNetwork = WifiConfigurationTestUtil.createPasspointNetwork();
        List<WifiConfiguration> networks = new ArrayList<>();
        networks.add(passpointNetwork);
        mWifiConfigManager.userTemporarilyDisabledNetwork(passpointNetwork.FQDN, TEST_UPDATE_UID);
        assertTrue(mWifiConfigManager.isNetworkTemporarilyDisabledByUser(passpointNetwork.FQDN));
        // Add new passpoint network will enable the network.
        NetworkUpdateResult result = addNetworkToWifiConfigManager(passpointNetwork);
        assertTrue(result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID);
        assertTrue(result.isNewNetwork());

        List<WifiConfiguration> retrievedNetworks =
                mWifiConfigManager.getConfiguredNetworksWithPasswords();
        WifiConfigurationTestUtil.assertConfigurationsEqualForConfigManagerAddOrUpdate(
                networks, retrievedNetworks);
        assertFalse(mWifiConfigManager.isNetworkTemporarilyDisabledByUser(passpointNetwork.FQDN));

        mWifiConfigManager.userTemporarilyDisabledNetwork(passpointNetwork.FQDN, TEST_UPDATE_UID);
        assertTrue(mWifiConfigManager.isNetworkTemporarilyDisabledByUser(passpointNetwork.FQDN));
        // Update a existing passpoint network will not enable network.
        result = addNetworkToWifiConfigManager(passpointNetwork);
        assertTrue(result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID);
        assertFalse(result.isNewNetwork());
        assertTrue(mWifiConfigManager.isNetworkTemporarilyDisabledByUser(passpointNetwork.FQDN));
    }

    private void verifyExpiryOfTimeout(WifiConfiguration config) {
        // Disable the ephemeral network.
        long disableTimeMs = 546643L;
        long currentTimeMs = disableTimeMs;
        when(mClock.getWallClockMillis()).thenReturn(currentTimeMs);
        String network = config.isPasspoint() ? config.FQDN : config.SSID;
        mWifiConfigManager.userTemporarilyDisabledNetwork(network, TEST_UPDATE_UID);
        // Before timer is triggered, timer will not expiry will enable network.
        currentTimeMs = disableTimeMs
                + WifiConfigManager.USER_DISCONNECT_NETWORK_BLOCK_EXPIRY_MS + 1;
        when(mClock.getWallClockMillis()).thenReturn(currentTimeMs);
        assertTrue(mWifiConfigManager.isNetworkTemporarilyDisabledByUser(network));
        for (int i = 0; i < WifiConfigManager.SCAN_RESULT_MISSING_COUNT_THRESHOLD; i++) {
            mWifiConfigManager.updateUserDisabledList(new ArrayList<>());
        }
        // Before the expiry of timeout.
        currentTimeMs = currentTimeMs
                + WifiConfigManager.USER_DISCONNECT_NETWORK_BLOCK_EXPIRY_MS - 1;
        when(mClock.getWallClockMillis()).thenReturn(currentTimeMs);
        assertTrue(mWifiConfigManager.isNetworkTemporarilyDisabledByUser(network));

        // After the expiry of timeout.
        currentTimeMs = currentTimeMs
                + WifiConfigManager.USER_DISCONNECT_NETWORK_BLOCK_EXPIRY_MS + 1;
        when(mClock.getWallClockMillis()).thenReturn(currentTimeMs);
        assertFalse(mWifiConfigManager.isNetworkTemporarilyDisabledByUser(network));
    }

    private NetworkUpdateResult verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
            boolean withNetworkSettings,
            boolean withProfileOwnerPolicy,
            boolean withDeviceOwnerPolicy,
            IpConfiguration ipConfiguration,
            boolean assertSuccess,
            int networkId) {
        return verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(withNetworkSettings,
                false, false, withProfileOwnerPolicy, withDeviceOwnerPolicy, ipConfiguration,
                assertSuccess, networkId);
    }

    private NetworkUpdateResult verifyAddOrUpdateNetworkWithProxySettingsAndPermissions(
            boolean withNetworkSettings,
            boolean withNetworkSetupWizard,
            boolean withNetworkManagedProvisioning,
            boolean withProfileOwnerPolicy,
            boolean withDeviceOwnerPolicy,
            IpConfiguration ipConfiguration,
            boolean assertSuccess,
            int networkId) {
        WifiConfiguration network;
        if (networkId == WifiConfiguration.INVALID_NETWORK_ID) {
            network = WifiConfigurationTestUtil.createOpenHiddenNetwork();
        } else {
            network = mWifiConfigManager.getConfiguredNetwork(networkId);
        }
        network.setIpConfiguration(ipConfiguration);
        when(mWifiPermissionsUtil.isDeviceOwner(anyInt(), any()))
                .thenReturn(withDeviceOwnerPolicy);
        when(mWifiPermissionsUtil.isProfileOwner(anyInt(), any()))
                .thenReturn(withProfileOwnerPolicy);
        when(mWifiPermissionsUtil.checkNetworkSettingsPermission(anyInt()))
                .thenReturn(withNetworkSettings);
        when(mWifiPermissionsUtil.checkNetworkSetupWizardPermission(anyInt()))
                .thenReturn(withNetworkSetupWizard);
        when(mWifiPermissionsUtil.checkNetworkManagedProvisioningPermission(anyInt()))
                .thenReturn(withNetworkManagedProvisioning);
        int uid = withNetworkSettings || withNetworkSetupWizard || withNetworkManagedProvisioning
                ? TEST_CREATOR_UID
                : TEST_NO_PERM_UID;
        NetworkUpdateResult result = addNetworkToWifiConfigManager(network, uid);
        assertEquals(assertSuccess, result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID);
        return result;
    }

    private void createWifiConfigManager() {
        mWifiConfigManager =
                new WifiConfigManager(
                        mContext, mClock, mUserManager, mWifiCarrierInfoManager,
                        mWifiKeyStore, mWifiConfigStore,
                        mWifiPermissionsUtil, mWifiPermissionsWrapper, mWifiInjector,
                        mNetworkListSharedStoreData, mNetworkListUserStoreData,
                        mRandomizedMacStoreData,
                        mFrameworkFacade, new Handler(mLooper.getLooper()), mDeviceConfigFacade,
                        mWifiScoreCard, mLruConnectionTracker);
        mWifiConfigManager.enableVerboseLogging(1);
    }

    /**
     * This method sets defaults in the provided WifiConfiguration object if not set
     * so that it can be used for comparison with the configuration retrieved from
     * WifiConfigManager.
     */
    private void setDefaults(WifiConfiguration configuration) {
        if (configuration.allowedProtocols.isEmpty()) {
            configuration.allowedProtocols.set(WifiConfiguration.Protocol.RSN);
            configuration.allowedProtocols.set(WifiConfiguration.Protocol.WPA);
        }
        if (configuration.allowedKeyManagement.isEmpty()) {
            configuration.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);
            configuration.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_EAP);
        }
        if (configuration.allowedPairwiseCiphers.isEmpty()) {
            configuration.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.GCMP_256);
            configuration.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP);
            configuration.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP);
        }
        if (configuration.allowedGroupCiphers.isEmpty()) {
            configuration.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.GCMP_256);
            configuration.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
            configuration.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
            configuration.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP40);
            configuration.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP104);
        }
        if (configuration.allowedGroupManagementCiphers.isEmpty()) {
            configuration.allowedGroupManagementCiphers
                    .set(WifiConfiguration.GroupMgmtCipher.BIP_GMAC_256);
        }
        if (configuration.getIpAssignment() == IpConfiguration.IpAssignment.UNASSIGNED) {
            configuration.setIpAssignment(IpConfiguration.IpAssignment.DHCP);
        }
        if (configuration.getProxySettings() == IpConfiguration.ProxySettings.UNASSIGNED) {
            configuration.setProxySettings(IpConfiguration.ProxySettings.NONE);
        }
        configuration.status = WifiConfiguration.Status.DISABLED;
        configuration.getNetworkSelectionStatus().setNetworkSelectionStatus(
                NetworkSelectionStatus.NETWORK_SELECTION_PERMANENTLY_DISABLED);
        configuration.getNetworkSelectionStatus().setNetworkSelectionDisableReason(
                NetworkSelectionStatus.DISABLED_BY_WIFI_MANAGER);
    }

    /**
     * Modifies the provided configuration with creator uid and package name.
     */
    private void setCreationDebugParams(WifiConfiguration configuration, int uid,
                                        String packageName) {
        configuration.creatorUid = configuration.lastUpdateUid = uid;
        configuration.creatorName = configuration.lastUpdateName = packageName;
    }

    /**
     * Modifies the provided configuration with update uid and package name.
     */
    private void setUpdateDebugParams(WifiConfiguration configuration) {
        configuration.lastUpdateUid = TEST_UPDATE_UID;
        configuration.lastUpdateName = TEST_UPDATE_NAME;
    }

    /**
     * Modifies the provided WifiConfiguration with the specified bssid value. Also, asserts that
     * the existing |BSSID| field is not the same value as the one being set
     */
    private void assertAndSetNetworkBSSID(WifiConfiguration configuration, String bssid) {
        assertNotEquals(bssid, configuration.BSSID);
        configuration.BSSID = bssid;
    }

    /**
     * Modifies the provided WifiConfiguration with the specified |IpConfiguration| object. Also,
     * asserts that the existing |mIpConfiguration| field is not the same value as the one being set
     */
    private void assertAndSetNetworkIpConfiguration(
            WifiConfiguration configuration, IpConfiguration ipConfiguration) {
        assertNotEquals(ipConfiguration, configuration.getIpConfiguration());
        configuration.setIpConfiguration(ipConfiguration);
    }

    /**
     * Modifies the provided WifiConfiguration with the specified |wepKeys| value and
     * |wepTxKeyIndex|.
     */
    private void assertAndSetNetworkWepKeysAndTxIndex(
            WifiConfiguration configuration, String[] wepKeys, int wepTxKeyIdx) {
        assertNotEquals(wepKeys, configuration.wepKeys);
        assertNotEquals(wepTxKeyIdx, configuration.wepTxKeyIndex);
        configuration.wepKeys = Arrays.copyOf(wepKeys, wepKeys.length);
        configuration.wepTxKeyIndex = wepTxKeyIdx;
    }

    /**
     * Modifies the provided WifiConfiguration with the specified |preSharedKey| value.
     */
    private void assertAndSetNetworkPreSharedKey(
            WifiConfiguration configuration, String preSharedKey) {
        assertNotEquals(preSharedKey, configuration.preSharedKey);
        configuration.preSharedKey = preSharedKey;
    }

    /**
     * Modifies the provided WifiConfiguration with the specified enteprise |password| value.
     */
    private void assertAndSetNetworkEnterprisePassword(
            WifiConfiguration configuration, String password) {
        assertNotEquals(password, configuration.enterpriseConfig.getPassword());
        configuration.enterpriseConfig.setPassword(password);
    }

    /**
     * Helper method to capture the networks list store data that will be written by
     * WifiConfigStore.write() method.
     */
    private Pair<List<WifiConfiguration>, List<WifiConfiguration>>
            captureWriteNetworksListStoreData() {
        try {
            ArgumentCaptor<ArrayList> sharedConfigsCaptor =
                    ArgumentCaptor.forClass(ArrayList.class);
            ArgumentCaptor<ArrayList> userConfigsCaptor =
                    ArgumentCaptor.forClass(ArrayList.class);
            mNetworkListStoreDataMockOrder.verify(mNetworkListSharedStoreData)
                    .setConfigurations(sharedConfigsCaptor.capture());
            mNetworkListStoreDataMockOrder.verify(mNetworkListUserStoreData)
                    .setConfigurations(userConfigsCaptor.capture());
            mContextConfigStoreMockOrder.verify(mWifiConfigStore).write(anyBoolean());
            return Pair.create(sharedConfigsCaptor.getValue(), userConfigsCaptor.getValue());
        } catch (Exception e) {
            fail("Exception encountered during write " + e);
        }
        return null;
    }

    /**
     * Returns whether the provided network was in the store data or not.
     */
    private boolean isNetworkInConfigStoreData(WifiConfiguration configuration) {
        Pair<List<WifiConfiguration>, List<WifiConfiguration>> networkListStoreData =
                captureWriteNetworksListStoreData();
        if (networkListStoreData == null) {
            return false;
        }
        List<WifiConfiguration> networkList = new ArrayList<>();
        networkList.addAll(networkListStoreData.first);
        networkList.addAll(networkListStoreData.second);
        return isNetworkInConfigStoreData(configuration, networkList);
    }

    /**
     * Returns whether the provided network was in the store data or not.
     */
    private boolean isNetworkInConfigStoreData(
            WifiConfiguration configuration, List<WifiConfiguration> networkList) {
        boolean foundNetworkInStoreData = false;
        for (WifiConfiguration retrievedConfig : networkList) {
            if (retrievedConfig.getKey().equals(configuration.getKey())) {
                foundNetworkInStoreData = true;
                break;
            }
        }
        return foundNetworkInStoreData;
    }

    /**
     * Setup expectations for WifiNetworksListStoreData and DeletedEphemeralSsidsStoreData
     * after WifiConfigStore#read.
     */
    private void setupStoreDataForRead(List<WifiConfiguration> sharedConfigurations,
            List<WifiConfiguration> userConfigurations) {
        when(mNetworkListSharedStoreData.getConfigurations())
                .thenReturn(sharedConfigurations);
        when(mNetworkListUserStoreData.getConfigurations()).thenReturn(userConfigurations);
    }

    /**
     * Setup expectations for WifiNetworksListStoreData and DeletedEphemeralSsidsStoreData
     * after WifiConfigStore#switchUserStoresAndRead.
     */
    private void setupStoreDataForUserRead(List<WifiConfiguration> userConfigurations,
            Map<String, Long> deletedEphemeralSsids) {
        when(mNetworkListUserStoreData.getConfigurations()).thenReturn(userConfigurations);
    }

    /**
     * Verifies that the provided network was not present in the last config store write.
     */
    private void verifyNetworkNotInConfigStoreData(WifiConfiguration configuration) {
        assertFalse(isNetworkInConfigStoreData(configuration));
    }

    /**
     * Verifies that the provided network was present in the last config store write.
     */
    private void verifyNetworkInConfigStoreData(WifiConfiguration configuration) {
        assertTrue(isNetworkInConfigStoreData(configuration));
    }

    private void assertPasswordsMaskedInWifiConfiguration(WifiConfiguration configuration) {
        if (!TextUtils.isEmpty(configuration.preSharedKey)) {
            assertEquals(WifiConfigManager.PASSWORD_MASK, configuration.preSharedKey);
        }
        if (configuration.wepKeys != null) {
            for (int i = 0; i < configuration.wepKeys.length; i++) {
                if (!TextUtils.isEmpty(configuration.wepKeys[i])) {
                    assertEquals(WifiConfigManager.PASSWORD_MASK, configuration.wepKeys[i]);
                }
            }
        }
        if (!TextUtils.isEmpty(configuration.enterpriseConfig.getPassword())) {
            assertEquals(
                    WifiConfigManager.PASSWORD_MASK,
                    configuration.enterpriseConfig.getPassword());
        }
    }

    private void assertRandomizedMacAddressMaskedInWifiConfiguration(
            WifiConfiguration configuration) {
        MacAddress defaultMac = MacAddress.fromString(WifiInfo.DEFAULT_MAC_ADDRESS);
        MacAddress randomizedMacAddress = configuration.getRandomizedMacAddress();
        if (randomizedMacAddress != null) {
            assertEquals(defaultMac, randomizedMacAddress);
        }
    }

    /**
     * Verifies that the network was present in the network change broadcast and returns the
     * change reason.
     */
    private int verifyNetworkInBroadcastAndReturnReason() {
        ArgumentCaptor<Intent> intentCaptor = ArgumentCaptor.forClass(Intent.class);
        mContextConfigStoreMockOrder.verify(mContext).sendBroadcastAsUser(
                intentCaptor.capture(),
                eq(UserHandle.ALL),
                eq(android.Manifest.permission.ACCESS_WIFI_STATE));

        Intent intent = intentCaptor.getValue();

        WifiConfiguration retrievedConfig =
                (WifiConfiguration) intent.getExtra(WifiManager.EXTRA_WIFI_CONFIGURATION);
        assertNull(retrievedConfig);

        return intent.getIntExtra(WifiManager.EXTRA_CHANGE_REASON, -1);
    }

    /**
     * Verifies that we sent out an add broadcast with the provided network.
     */
    private void verifyNetworkAddBroadcast() {
        assertEquals(
                verifyNetworkInBroadcastAndReturnReason(),
                WifiManager.CHANGE_REASON_ADDED);
    }

    /**
     * Verifies that we sent out an update broadcast with the provided network.
     */
    private void verifyNetworkUpdateBroadcast() {
        assertEquals(
                verifyNetworkInBroadcastAndReturnReason(),
                WifiManager.CHANGE_REASON_CONFIG_CHANGE);
    }

    /**
     * Verifies that we sent out a remove broadcast with the provided network.
     */
    private void verifyNetworkRemoveBroadcast() {
        assertEquals(
                verifyNetworkInBroadcastAndReturnReason(),
                WifiManager.CHANGE_REASON_REMOVED);
    }

    private void verifyWifiConfigStoreRead() {
        assertTrue(mWifiConfigManager.loadFromStore());
        mContextConfigStoreMockOrder.verify(mContext).sendBroadcastAsUser(
                any(Intent.class),
                any(UserHandle.class),
                eq(android.Manifest.permission.ACCESS_WIFI_STATE));
    }

    private void triggerStoreReadIfNeeded() {
        // Trigger a store read if not already done.
        if (!mStoreReadTriggered) {
            verifyWifiConfigStoreRead();
            mStoreReadTriggered = true;
        }
    }

    /**
     * Adds the provided configuration to WifiConfigManager with uid = TEST_CREATOR_UID.
     */
    private NetworkUpdateResult addNetworkToWifiConfigManager(WifiConfiguration configuration) {
        return addNetworkToWifiConfigManager(configuration, TEST_CREATOR_UID, null);
    }

    /**
     * Adds the provided configuration to WifiConfigManager with uid specified.
     */
    private NetworkUpdateResult addNetworkToWifiConfigManager(WifiConfiguration configuration,
                                                              int uid) {
        return addNetworkToWifiConfigManager(configuration, uid, null);
    }

    /**
     * Adds the provided configuration to WifiConfigManager and modifies the provided configuration
     * with creator/update uid, package name and time. This also sets defaults for fields not
     * populated.
     * These fields are populated internally by WifiConfigManager and hence we need
     * to modify the configuration before we compare the added network with the retrieved network.
     * This method also triggers a store read if not already done.
     */
    private NetworkUpdateResult addNetworkToWifiConfigManager(WifiConfiguration configuration,
                                                              int uid,
                                                              @Nullable String packageName) {
        clearInvocations(mContext, mWifiConfigStore, mNetworkListSharedStoreData,
                mNetworkListUserStoreData);
        triggerStoreReadIfNeeded();
        when(mClock.getWallClockMillis()).thenReturn(TEST_WALLCLOCK_CREATION_TIME_MILLIS);
        NetworkUpdateResult result =
                mWifiConfigManager.addOrUpdateNetwork(configuration, uid, packageName);
        setDefaults(configuration);
        setCreationDebugParams(
                configuration, uid, packageName != null ? packageName : TEST_CREATOR_NAME);
        configuration.networkId = result.getNetworkId();
        return result;
    }

    /**
     * Add network to WifiConfigManager and ensure that it was successful.
     */
    private NetworkUpdateResult verifyAddNetworkToWifiConfigManager(
            WifiConfiguration configuration) {
        NetworkUpdateResult result = addNetworkToWifiConfigManager(configuration);
        assertTrue(result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID);
        assertTrue(result.isNewNetwork());
        assertTrue(result.hasIpChanged());
        assertTrue(result.hasProxyChanged());

        verifyNetworkAddBroadcast();
        // Verify that the config store write was triggered with this new configuration.
        verifyNetworkInConfigStoreData(configuration);
        return result;
    }

    /**
     * Add ephemeral network to WifiConfigManager and ensure that it was successful.
     */
    private NetworkUpdateResult verifyAddEphemeralNetworkToWifiConfigManager(
            WifiConfiguration configuration) throws Exception {
        NetworkUpdateResult result = addNetworkToWifiConfigManager(configuration);
        assertTrue(result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID);
        assertTrue(result.isNewNetwork());
        assertTrue(result.hasIpChanged());
        assertTrue(result.hasProxyChanged());

        verifyNetworkAddBroadcast();
        // Ensure that the write was not invoked for ephemeral network addition.
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).write(anyBoolean());
        return result;
    }

    /**
     * Add ephemeral network to WifiConfigManager and ensure that it was successful.
     */
    private NetworkUpdateResult verifyAddSuggestionOrRequestNetworkToWifiConfigManager(
            WifiConfiguration configuration) throws Exception {
        NetworkUpdateResult result =
                addNetworkToWifiConfigManager(configuration, TEST_CREATOR_UID, TEST_CREATOR_NAME);
        assertTrue(result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID);
        assertTrue(result.isNewNetwork());
        assertTrue(result.hasIpChanged());
        assertTrue(result.hasProxyChanged());

        verifyNetworkAddBroadcast();
        // Ensure that the write was not invoked for ephemeral network addition.
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).write(anyBoolean());
        return result;
    }

    /**
     * Add Passpoint network to WifiConfigManager and ensure that it was successful.
     */
    private NetworkUpdateResult verifyAddPasspointNetworkToWifiConfigManager(
            WifiConfiguration configuration) throws Exception {
        NetworkUpdateResult result = addNetworkToWifiConfigManager(configuration);
        assertTrue(result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID);
        assertTrue(result.isNewNetwork());
        assertTrue(result.hasIpChanged());
        assertTrue(result.hasProxyChanged());

        // Verify keys are not being installed.
        verify(mWifiKeyStore, never()).updateNetworkKeys(any(WifiConfiguration.class),
                any(WifiConfiguration.class));
        verifyNetworkAddBroadcast();
        // Ensure that the write was not invoked for Passpoint network addition.
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).write(anyBoolean());
        return result;
    }

    /**
     * Updates the provided configuration to WifiConfigManager and modifies the provided
     * configuration with update uid, package name and time.
     * These fields are populated internally by WifiConfigManager and hence we need
     * to modify the configuration before we compare the added network with the retrieved network.
     */
    private NetworkUpdateResult updateNetworkToWifiConfigManager(WifiConfiguration configuration) {
        clearInvocations(mContext, mWifiConfigStore, mNetworkListSharedStoreData,
                mNetworkListUserStoreData);
        when(mClock.getWallClockMillis()).thenReturn(TEST_WALLCLOCK_UPDATE_TIME_MILLIS);
        NetworkUpdateResult result =
                mWifiConfigManager.addOrUpdateNetwork(configuration, TEST_UPDATE_UID);
        setUpdateDebugParams(configuration);
        return result;
    }

    /**
     * Update network to WifiConfigManager config change and ensure that it was successful.
     */
    private NetworkUpdateResult verifyUpdateNetworkToWifiConfigManager(
            WifiConfiguration configuration) {
        NetworkUpdateResult result = updateNetworkToWifiConfigManager(configuration);
        assertTrue(result.getNetworkId() != WifiConfiguration.INVALID_NETWORK_ID);
        assertFalse(result.isNewNetwork());

        verifyNetworkUpdateBroadcast();
        // Verify that the config store write was triggered with this new configuration.
        verifyNetworkInConfigStoreData(configuration);
        return result;
    }

    /**
     * Update network to WifiConfigManager without IP config change and ensure that it was
     * successful.
     */
    private NetworkUpdateResult verifyUpdateNetworkToWifiConfigManagerWithoutIpChange(
            WifiConfiguration configuration) {
        NetworkUpdateResult result = verifyUpdateNetworkToWifiConfigManager(configuration);
        assertFalse(result.hasIpChanged());
        assertFalse(result.hasProxyChanged());
        return result;
    }

    /**
     * Update network to WifiConfigManager with IP config change and ensure that it was
     * successful.
     */
    private NetworkUpdateResult verifyUpdateNetworkToWifiConfigManagerWithIpChange(
            WifiConfiguration configuration) {
        NetworkUpdateResult result = verifyUpdateNetworkToWifiConfigManager(configuration);
        assertTrue(result.hasIpChanged());
        assertTrue(result.hasProxyChanged());
        return result;
    }

    /**
     * Removes network from WifiConfigManager and ensure that it was successful.
     */
    private void verifyRemoveNetworkFromWifiConfigManager(
            WifiConfiguration configuration) {
        assertTrue(mWifiConfigManager.removeNetwork(
                configuration.networkId, TEST_CREATOR_UID, TEST_CREATOR_NAME));

        verifyNetworkRemoveBroadcast();
        // Verify if the config store write was triggered without this new configuration.
        verifyNetworkNotInConfigStoreData(configuration);
        verify(mBssidBlocklistMonitor, atLeastOnce()).handleNetworkRemoved(configuration.SSID);
    }

    /**
     * Removes ephemeral network from WifiConfigManager and ensure that it was successful.
     */
    private void verifyRemoveEphemeralNetworkFromWifiConfigManager(
            WifiConfiguration configuration) throws Exception {
        assertTrue(mWifiConfigManager.removeNetwork(
                configuration.networkId, TEST_CREATOR_UID, TEST_CREATOR_NAME));

        verifyNetworkRemoveBroadcast();
        // Ensure that the write was not invoked for ephemeral network remove.
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).write(anyBoolean());
    }

    /**
     * Removes Passpoint network from WifiConfigManager and ensure that it was successful.
     */
    private void verifyRemovePasspointNetworkFromWifiConfigManager(
            WifiConfiguration configuration) throws Exception {
        assertTrue(mWifiConfigManager.removeNetwork(
                configuration.networkId, TEST_CREATOR_UID, TEST_CREATOR_NAME));

        // Verify keys are not being removed.
        verify(mWifiKeyStore, never()).removeKeys(any(WifiEnterpriseConfig.class));
        verifyNetworkRemoveBroadcast();
        // Ensure that the write was not invoked for Passpoint network remove.
        mContextConfigStoreMockOrder.verify(mWifiConfigStore, never()).write(anyBoolean());
    }

    /**
     * Verifies the provided network's public status and ensures that the network change broadcast
     * has been sent out.
     */
    private void verifyUpdateNetworkStatus(WifiConfiguration configuration, int status) {
        assertEquals(status, configuration.status);
        verifyNetworkUpdateBroadcast();
    }

    /**
     * Verifies the network's selection status update.
     *
     * For temporarily disabled reasons, the method ensures that the status has changed only if
     * disable reason counter has exceeded the threshold.
     *
     * For permanently disabled/enabled reasons, the method ensures that the public status has
     * changed and the network change broadcast has been sent out.
     */
    private void verifyUpdateNetworkSelectionStatus(
            int networkId, int reason, int temporaryDisableReasonCounter) {
        when(mClock.getElapsedSinceBootMillis())
                .thenReturn(TEST_ELAPSED_UPDATE_NETWORK_SELECTION_TIME_MILLIS);

        // Fetch the current status of the network before we try to update the status.
        WifiConfiguration retrievedNetwork = mWifiConfigManager.getConfiguredNetwork(networkId);
        NetworkSelectionStatus currentStatus = retrievedNetwork.getNetworkSelectionStatus();
        int currentDisableReason = currentStatus.getNetworkSelectionDisableReason();

        // First set the status to the provided reason.
        assertTrue(mWifiConfigManager.updateNetworkSelectionStatus(networkId, reason));

        // Now fetch the network configuration and verify the new status of the network.
        retrievedNetwork = mWifiConfigManager.getConfiguredNetwork(networkId);

        NetworkSelectionStatus retrievedStatus = retrievedNetwork.getNetworkSelectionStatus();
        int retrievedDisableReason = retrievedStatus.getNetworkSelectionDisableReason();
        long retrievedDisableTime = retrievedStatus.getDisableTime();
        int retrievedDisableReasonCounter = retrievedStatus.getDisableReasonCounter(reason);
        int disableReasonThreshold =
                WifiConfigManager.getNetworkSelectionDisableThreshold(reason);

        if (reason == NetworkSelectionStatus.DISABLED_NONE) {
            assertEquals(reason, retrievedDisableReason);
            assertTrue(retrievedStatus.isNetworkEnabled());
            assertEquals(
                    NetworkSelectionStatus.INVALID_NETWORK_SELECTION_DISABLE_TIMESTAMP,
                    retrievedDisableTime);
            verifyUpdateNetworkStatus(retrievedNetwork, WifiConfiguration.Status.ENABLED);
        } else if (reason < NetworkSelectionStatus.PERMANENTLY_DISABLED_STARTING_INDEX) {
            // For temporarily disabled networks, we need to ensure that the current status remains
            // until the threshold is crossed.
            assertEquals(temporaryDisableReasonCounter, retrievedDisableReasonCounter);
            if (retrievedDisableReasonCounter < disableReasonThreshold) {
                assertEquals(currentDisableReason, retrievedDisableReason);
                assertEquals(
                        currentStatus.getNetworkSelectionStatus(),
                        retrievedStatus.getNetworkSelectionStatus());
            } else {
                assertEquals(reason, retrievedDisableReason);
                assertTrue(retrievedStatus.isNetworkTemporaryDisabled());
                assertEquals(
                        TEST_ELAPSED_UPDATE_NETWORK_SELECTION_TIME_MILLIS, retrievedDisableTime);
            }
        } else if (reason < NetworkSelectionStatus.NETWORK_SELECTION_DISABLED_MAX) {
            assertEquals(reason, retrievedDisableReason);
            assertTrue(retrievedStatus.isNetworkPermanentlyDisabled());
            assertEquals(
                    NetworkSelectionStatus.INVALID_NETWORK_SELECTION_DISABLE_TIMESTAMP,
                    retrievedDisableTime);
            verifyUpdateNetworkStatus(retrievedNetwork, WifiConfiguration.Status.DISABLED);
        }
    }

    /**
     * Creates a scan detail corresponding to the provided network and given BSSID, level &frequency
     * values.
     */
    private ScanDetail createScanDetailForNetwork(
            WifiConfiguration configuration, String bssid, int level, int frequency) {
        return WifiConfigurationTestUtil.createScanDetailForNetwork(configuration, bssid, level,
                frequency, mClock.getUptimeSinceBootMillis(), mClock.getWallClockMillis());
    }
    /**
     * Creates a scan detail corresponding to the provided network and BSSID value.
     */
    private ScanDetail createScanDetailForNetwork(WifiConfiguration configuration, String bssid) {
        return createScanDetailForNetwork(configuration, bssid, 0, 0);
    }

    /**
     * Creates a scan detail corresponding to the provided network and fixed BSSID value.
     */
    private ScanDetail createScanDetailForNetwork(WifiConfiguration configuration) {
        return createScanDetailForNetwork(configuration, TEST_BSSID);
    }

    /**
     * Adds the provided network and then creates a scan detail corresponding to the network. The
     * method then creates a ScanDetail corresponding to the network and ensures that the network
     * is properly matched using
     * {@link WifiConfigManager#getConfiguredNetworkForScanDetailAndCache(ScanDetail)} and also
     * verifies that the provided scan detail was cached,
     */
    private void verifyAddSingleNetworkAndMatchScanDetailToNetworkAndCache(
            WifiConfiguration network) {
        // First add the provided network.
        verifyAddNetworkToWifiConfigManager(network);

        // Now create a dummy scan detail corresponding to the network.
        ScanDetail scanDetail = createScanDetailForNetwork(network);
        ScanResult scanResult = scanDetail.getScanResult();

        WifiConfiguration retrievedNetwork =
                mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(scanDetail);
        // Retrieve the network with password data for comparison.
        retrievedNetwork =
                mWifiConfigManager.getConfiguredNetworkWithPassword(retrievedNetwork.networkId);

        WifiConfigurationTestUtil.assertConfigurationEqualForConfigManagerAddOrUpdate(
                network, retrievedNetwork);

        // Now retrieve the scan detail cache and ensure that the new scan detail is in cache.
        ScanDetailCache retrievedScanDetailCache =
                mWifiConfigManager.getScanDetailCacheForNetwork(network.networkId);
        assertEquals(1, retrievedScanDetailCache.size());
        ScanResult retrievedScanResult = retrievedScanDetailCache.getScanResult(scanResult.BSSID);

        ScanTestUtil.assertScanResultEquals(scanResult, retrievedScanResult);
    }

    /**
     * Adds a new network and verifies that the |HasEverConnected| flag is set to false.
     */
    private void verifyAddNetworkHasEverConnectedFalse(WifiConfiguration network) {
        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(network);
        WifiConfiguration retrievedNetwork =
                mWifiConfigManager.getConfiguredNetwork(result.getNetworkId());
        assertFalse("Adding a new network should not have hasEverConnected set to true.",
                retrievedNetwork.getNetworkSelectionStatus().hasEverConnected());
    }

    /**
     * Updates an existing network with some credential change and verifies that the
     * |HasEverConnected| flag is set to false.
     */
    private void verifyUpdateNetworkWithCredentialChangeHasEverConnectedFalse(
            WifiConfiguration network) {
        NetworkUpdateResult result = verifyUpdateNetworkToWifiConfigManagerWithoutIpChange(network);
        WifiConfiguration retrievedNetwork =
                mWifiConfigManager.getConfiguredNetwork(result.getNetworkId());
        assertFalse("Updating network credentials config should clear hasEverConnected.",
                retrievedNetwork.getNetworkSelectionStatus().hasEverConnected());
        assertTrue(result.hasCredentialChanged());
    }

    /**
     * Updates an existing network after connection using
     * {@link WifiConfigManager#updateNetworkAfterConnect(int)} and asserts that the
     * |HasEverConnected| flag is set to true.
     */
    private void verifyUpdateNetworkAfterConnectHasEverConnectedTrue(int networkId) {
        assertTrue(mWifiConfigManager.updateNetworkAfterConnect(networkId));
        WifiConfiguration retrievedNetwork = mWifiConfigManager.getConfiguredNetwork(networkId);
        assertTrue("hasEverConnected expected to be true after connection.",
                retrievedNetwork.getNetworkSelectionStatus().hasEverConnected());
        assertEquals(0, mLruConnectionTracker.getAgeIndexOfNetwork(retrievedNetwork));
    }

    /**
     * Sets up a user profiles for WifiConfigManager testing.
     *
     * @param userId Id of the user.
     */
    private void setupUserProfiles(int userId) {
        when(mUserManager.isUserUnlockingOrUnlocked(UserHandle.of(userId))).thenReturn(true);
    }

    private void verifyRemoveNetworksForApp() {
        verifyAddNetworkToWifiConfigManager(WifiConfigurationTestUtil.createOpenNetwork());
        verifyAddNetworkToWifiConfigManager(WifiConfigurationTestUtil.createPskNetwork());
        verifyAddNetworkToWifiConfigManager(WifiConfigurationTestUtil.createWepNetwork());

        assertFalse(mWifiConfigManager.getConfiguredNetworks().isEmpty());

        ApplicationInfo app = new ApplicationInfo();
        app.uid = TEST_CREATOR_UID;
        app.packageName = TEST_CREATOR_NAME;
        assertEquals(3, mWifiConfigManager.removeNetworksForApp(app).size());

        // Ensure all the networks are removed now.
        assertTrue(mWifiConfigManager.getConfiguredNetworks().isEmpty());
    }

    /**
     * Verifies SSID blacklist consistent with Watchdog trigger.
     *
     * Expected behavior: A SSID won't gets blacklisted if there only signle SSID
     * be observed and Watchdog trigger is activated.
     */
    @Test
    public void verifyConsistentWatchdogAndSsidBlacklist() {

        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(openNetwork);

        when(mWifiInjector.getWifiLastResortWatchdog().shouldIgnoreSsidUpdate())
                .thenReturn(true);

        int networkId = result.getNetworkId();
        // First set it to enabled.
        verifyUpdateNetworkSelectionStatus(
                networkId, NetworkSelectionStatus.DISABLED_NONE, 0);

        int assocRejectReason = NetworkSelectionStatus.DISABLED_ASSOCIATION_REJECTION;
        int assocRejectThreshold =
                WifiConfigManager.getNetworkSelectionDisableThreshold(assocRejectReason);
        for (int i = 1; i <= assocRejectThreshold; i++) {
            assertFalse(mWifiConfigManager.updateNetworkSelectionStatus(
                        networkId, assocRejectReason));
        }

        assertFalse(mWifiConfigManager.getConfiguredNetwork(networkId)
                    .getNetworkSelectionStatus().isNetworkTemporaryDisabled());
    }

    /**
     * Verifies that isInFlakyRandomizationSsidHotlist returns true if the network's SSID is in
     * the hotlist and the network is using randomized MAC.
     */
    @Test
    public void testFlakyRandomizationSsidHotlist() {
        WifiConfiguration openNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(openNetwork);
        int networkId = result.getNetworkId();

        // should return false when there is nothing in the hotlist
        assertFalse(mWifiConfigManager.isInFlakyRandomizationSsidHotlist(networkId));

        // add the network's SSID to the hotlist and verify the method returns true
        Set<String> ssidHotlist = new HashSet<>();
        ssidHotlist.add(openNetwork.SSID);
        when(mDeviceConfigFacade.getRandomizationFlakySsidHotlist()).thenReturn(ssidHotlist);
        assertTrue(mWifiConfigManager.isInFlakyRandomizationSsidHotlist(networkId));

        // Now change the macRandomizationSetting to "trusted" and then verify
        // isInFlakyRandomizationSsidHotlist returns false
        openNetwork.macRandomizationSetting = WifiConfiguration.RANDOMIZATION_NONE;
        NetworkUpdateResult networkUpdateResult = updateNetworkToWifiConfigManager(openNetwork);
        assertNotEquals(WifiConfiguration.INVALID_NETWORK_ID, networkUpdateResult.getNetworkId());
        assertFalse(mWifiConfigManager.isInFlakyRandomizationSsidHotlist(networkId));
    }

    /**
     * Verifies that findScanRssi returns valid RSSI when scan was done recently
     */
    @Test
    public void testFindScanRssiRecentScan() {
        // First add the provided network.
        WifiConfiguration testNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(testNetwork);

        when(mClock.getWallClockMillis()).thenReturn(TEST_WALLCLOCK_CREATION_TIME_MILLIS);
        ScanDetail scanDetail = createScanDetailForNetwork(testNetwork, TEST_BSSID,
                TEST_RSSI, TEST_FREQUENCY_1);
        ScanResult scanResult = scanDetail.getScanResult();

        mWifiConfigManager.updateScanDetailCacheFromScanDetail(scanDetail);
        when(mClock.getWallClockMillis()).thenReturn(TEST_WALLCLOCK_CREATION_TIME_MILLIS + 2000);
        assertEquals(mWifiConfigManager.findScanRssi(result.getNetworkId(), 5000), TEST_RSSI);
    }

    /**
     * Verifies that findScanRssi returns INVALID_RSSI when scan was done a long time ago
     */
    @Test
    public void testFindScanRssiOldScan() {
        // First add the provided network.
        WifiConfiguration testNetwork = WifiConfigurationTestUtil.createOpenNetwork();
        NetworkUpdateResult result = verifyAddNetworkToWifiConfigManager(testNetwork);

        when(mClock.getWallClockMillis()).thenReturn(TEST_WALLCLOCK_CREATION_TIME_MILLIS);
        ScanDetail scanDetail = createScanDetailForNetwork(testNetwork, TEST_BSSID,
                TEST_RSSI, TEST_FREQUENCY_1);
        ScanResult scanResult = scanDetail.getScanResult();

        mWifiConfigManager.updateScanDetailCacheFromScanDetail(scanDetail);
        when(mClock.getWallClockMillis()).thenReturn(TEST_WALLCLOCK_CREATION_TIME_MILLIS + 15000);
        assertEquals(mWifiConfigManager.findScanRssi(result.getNetworkId(), 5000),
                WifiInfo.INVALID_RSSI);
    }

    /**
     * Verify when save to store, isMostRecentlyConnected flag will be set.
     */
    @Test
    public void testMostRecentlyConnectedNetwork() {
        WifiConfiguration testNetwork1 = WifiConfigurationTestUtil.createOpenNetwork();
        verifyAddNetworkToWifiConfigManager(testNetwork1);
        WifiConfiguration testNetwork2 = WifiConfigurationTestUtil.createOpenNetwork();
        verifyAddNetworkToWifiConfigManager(testNetwork2);
        mWifiConfigManager.updateNetworkAfterConnect(testNetwork2.networkId);
        mWifiConfigManager.saveToStore(true);
        Pair<List<WifiConfiguration>, List<WifiConfiguration>> networkStoreData =
                captureWriteNetworksListStoreData();
        List<WifiConfiguration> sharedNetwork = networkStoreData.first;
        assertFalse(sharedNetwork.get(0).isMostRecentlyConnected);
        assertTrue(sharedNetwork.get(1).isMostRecentlyConnected);
    }

    /**
     * Verify scan comparator gives the most recently connected network highest priority
     */
    @Test
    public void testScanComparator() {
        WifiConfiguration network1 = WifiConfigurationTestUtil.createOpenNetwork();
        verifyAddNetworkToWifiConfigManager(network1);
        WifiConfiguration network2 = WifiConfigurationTestUtil.createOpenNetwork();
        verifyAddNetworkToWifiConfigManager(network2);
        WifiConfiguration network3 = WifiConfigurationTestUtil.createOpenNetwork();
        verifyAddNetworkToWifiConfigManager(network3);
        WifiConfiguration network4 = WifiConfigurationTestUtil.createOpenNetwork();
        verifyAddNetworkToWifiConfigManager(network4);

        // Connect two network in order, network3 --> network2
        verifyUpdateNetworkAfterConnectHasEverConnectedTrue(network3.networkId);
        verifyUpdateNetworkAfterConnectHasEverConnectedTrue(network2.networkId);
        // Set network4 {@link NetworkSelectionStatus#mSeenInLastQualifiedNetworkSelection} to true.
        assertTrue(mWifiConfigManager.setNetworkCandidateScanResult(network4.networkId,
                createScanDetailForNetwork(network4).getScanResult(), 54));
        List<WifiConfiguration> networkList = mWifiConfigManager.getConfiguredNetworks();
        // Expected order should be based on connection order and last qualified selection.
        Collections.sort(networkList, mWifiConfigManager.getScanListComparator());
        assertEquals(network2.SSID, networkList.get(0).SSID);
        assertEquals(network3.SSID, networkList.get(1).SSID);
        assertEquals(network4.SSID, networkList.get(2).SSID);
        assertEquals(network1.SSID, networkList.get(3).SSID);
        // Remove network to check the age index changes.
        mWifiConfigManager.removeNetwork(network3.networkId, TEST_CREATOR_UID, TEST_CREATOR_NAME);
        assertEquals(Integer.MAX_VALUE, mLruConnectionTracker.getAgeIndexOfNetwork(network3));
        assertEquals(0, mLruConnectionTracker.getAgeIndexOfNetwork(network2));
        mWifiConfigManager.removeNetwork(network2.networkId, TEST_CREATOR_UID, TEST_CREATOR_NAME);
        assertEquals(Integer.MAX_VALUE, mLruConnectionTracker.getAgeIndexOfNetwork(network2));
    }
}