1 /*
2  * Copyright (C) 2019 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.inputmethod;
18 
19 import static com.google.common.truth.Truth.assertThat;
20 
21 import static org.mockito.Mockito.mock;
22 import static org.mockito.Mockito.spy;
23 import static org.mockito.Mockito.when;
24 
25 import android.content.Context;
26 import android.view.inputmethod.InputMethodInfo;
27 
28 import androidx.preference.Preference;
29 import androidx.preference.PreferenceManager;
30 import androidx.preference.PreferenceScreen;
31 
32 import com.android.settings.testutils.shadow.ShadowInputMethodManagerWithMethodList;
33 
34 import org.junit.Before;
35 import org.junit.Test;
36 import org.junit.runner.RunWith;
37 import org.robolectric.RobolectricTestRunner;
38 import org.robolectric.RuntimeEnvironment;
39 import org.robolectric.annotation.Config;
40 
41 import java.util.ArrayList;
42 import java.util.List;
43 
44 @RunWith(RobolectricTestRunner.class)
45 @Config(shadows = ShadowInputMethodManagerWithMethodList.class)
46 public class InputMethodPreferenceControllerTest {
47 
48     private InputMethodPreferenceController mController;
49     private Context mContext;
50     private PreferenceScreen mScreen;
51     private Preference mPreference;
52 
53     @Before
setUp()54     public void setUp() {
55         mContext = RuntimeEnvironment.application;
56         mScreen = spy(new PreferenceScreen(mContext, null));
57         mPreference = new Preference(mContext);
58         mController = new InputMethodPreferenceController(mContext, "key");
59 
60         when(mScreen.getPreferenceManager()).thenReturn(mock(PreferenceManager.class));
61         when(mScreen.getContext()).thenReturn(mContext);
62         when(mScreen.findPreference(mController.getPreferenceKey())).thenReturn(mPreference);
63 
64         mController.displayPreference(mScreen);
65     }
66 
67     @Test
onStart_NoInputMethod_shouldHaveOnePreference()68     public void onStart_NoInputMethod_shouldHaveOnePreference() {
69         mController.onStart();
70 
71         assertThat(mScreen.getPreferenceCount()).isEqualTo(1);
72     }
73 
74     @Test
onStart_hasInputMethod_shouldHaveCorrectPreferences()75     public void onStart_hasInputMethod_shouldHaveCorrectPreferences() {
76         final List<InputMethodInfo> imis = new ArrayList<>();
77         imis.add(mock(InputMethodInfo.class));
78         imis.add(mock(InputMethodInfo.class));
79         when(imis.get(0).getPackageName()).thenReturn("name1");
80         when(imis.get(1).getPackageName()).thenReturn("name2");
81         ShadowInputMethodManagerWithMethodList.getShadow().setEnabledInputMethodList(imis);
82 
83         mController.onStart();
84 
85         assertThat(mScreen.getPreferenceCount()).isEqualTo(3);
86     }
87 }
88