1 /*
2  * Copyright (C) 2022 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.settings.dream;
18 
19 import static com.google.common.truth.Truth.assertThat;
20 
21 import static org.mockito.ArgumentMatchers.anyString;
22 import static org.mockito.Mockito.when;
23 
24 import android.content.Context;
25 
26 import androidx.preference.PreferenceScreen;
27 import androidx.recyclerview.widget.RecyclerView;
28 import androidx.test.core.app.ApplicationProvider;
29 
30 import com.android.settings.R;
31 import com.android.settingslib.dream.DreamBackend;
32 import com.android.settingslib.dream.DreamBackend.DreamInfo;
33 import com.android.settingslib.widget.LayoutPreference;
34 
35 import org.junit.Before;
36 import org.junit.Test;
37 import org.junit.runner.RunWith;
38 import org.mockito.Answers;
39 import org.mockito.Mock;
40 import org.mockito.MockitoAnnotations;
41 import org.robolectric.RobolectricTestRunner;
42 
43 import java.util.ArrayList;
44 import java.util.Collections;
45 
46 @RunWith(RobolectricTestRunner.class)
47 public class DreamPickerControllerTest {
48     @Mock(answer = Answers.RETURNS_DEEP_STUBS)
49     private DreamBackend mBackend;
50     private Context mContext;
51     @Mock
52     private PreferenceScreen mScreen;
53     private LayoutPreference mPreference;
54 
55     @Before
setup()56     public void setup() {
57         MockitoAnnotations.initMocks(this);
58         mContext = ApplicationProvider.getApplicationContext();
59 
60         mPreference = new LayoutPreference(mContext, R.layout.dream_picker_layout);
61         when(mScreen.findPreference(anyString())).thenReturn(mPreference);
62     }
63 
buildController()64     private DreamPickerController buildController() {
65         final DreamPickerController controller = new DreamPickerController(mContext, mBackend);
66         controller.displayPreference(mScreen);
67         return controller;
68     }
69 
70     @Test
isDisabledIfNoDreamsAvailable()71     public void isDisabledIfNoDreamsAvailable() {
72         when(mBackend.getDreamInfos()).thenReturn(new ArrayList<>(0));
73         final DreamPickerController controller = buildController();
74         assertThat(controller.isAvailable()).isFalse();
75     }
76 
77     @Test
isEnabledIfDreamsAvailable()78     public void isEnabledIfDreamsAvailable() {
79         when(mBackend.getDreamInfos()).thenReturn(Collections.singletonList(new DreamInfo()));
80         final DreamPickerController controller = buildController();
81         assertThat(controller.isAvailable()).isTrue();
82     }
83 
84     @Test
testDreamDisplayedInList()85     public void testDreamDisplayedInList() {
86         when(mBackend.getDreamInfos()).thenReturn(Collections.singletonList(new DreamInfo()));
87         final DreamPickerController controller = buildController();
88         controller.updateState(mPreference);
89 
90         RecyclerView view = mPreference.findViewById(R.id.dream_list);
91         assertThat(view.getAdapter().getItemCount()).isEqualTo(1);
92     }
93 }
94