1 /*
2  * Copyright (C) 2020 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.accessibility;
18 
19 import static com.google.common.truth.Truth.assertThat;
20 
21 import static org.mockito.ArgumentMatchers.any;
22 import static org.mockito.ArgumentMatchers.anyBoolean;
23 import static org.mockito.Mockito.never;
24 import static org.mockito.Mockito.spy;
25 import static org.mockito.Mockito.verify;
26 
27 import android.content.Context;
28 import android.database.ContentObserver;
29 
30 import androidx.test.core.app.ApplicationProvider;
31 
32 import com.android.settings.R;
33 
34 import org.junit.Test;
35 import org.junit.runner.RunWith;
36 import org.robolectric.RobolectricTestRunner;
37 
38 /** Tests for {@link MagnificationCapabilities} */
39 @RunWith(RobolectricTestRunner.class)
40 public final class MagnificationCapabilitiesTest {
41 
42     private final Context mContext = ApplicationProvider.getApplicationContext();
43 
44     @Test
getCapabilities_windowMode_expectedCapabilities()45     public void getCapabilities_windowMode_expectedCapabilities() {
46         MagnificationCapabilities.setCapabilities(mContext,
47                 MagnificationCapabilities.MagnificationMode.WINDOW);
48 
49         final int windowCapabilities = MagnificationCapabilities.getCapabilities(mContext);
50         assertThat(windowCapabilities).isEqualTo(
51                 MagnificationCapabilities.MagnificationMode.WINDOW);
52     }
53 
54     @Test
getSummary_fullScreenMode_expectedSummary()55     public void getSummary_fullScreenMode_expectedSummary() {
56         final int fullScreenCapabilities = MagnificationCapabilities.MagnificationMode.FULLSCREEN;
57 
58         final String actualString = MagnificationCapabilities.getSummary(mContext,
59                 fullScreenCapabilities);
60 
61         final String expectedString = mContext.getString(
62                 R.string.accessibility_magnification_area_settings_full_screen_summary);
63         assertThat(actualString).isEqualTo(expectedString);
64     }
65 
66     @Test
getCapabilities_unset_defaultValue()67     public void getCapabilities_unset_defaultValue() {
68         final int windowCapabilities = MagnificationCapabilities.getCapabilities(mContext);
69         assertThat(windowCapabilities).isEqualTo(
70                 MagnificationCapabilities.MagnificationMode.FULLSCREEN);
71     }
72 
73     @Test
registerObserver_triggeredWhenCapabilitiesChanged()74     public void registerObserver_triggeredWhenCapabilitiesChanged() {
75         MagnificationCapabilities.setCapabilities(mContext,
76                 MagnificationCapabilities.MagnificationMode.FULLSCREEN);
77 
78         ContentObserver contentObserver =
79                 spy(new ContentObserver(/* handler= */ null) {});
80 
81         MagnificationCapabilities.registerObserver(mContext, contentObserver);
82         MagnificationCapabilities.setCapabilities(mContext,
83                 MagnificationCapabilities.MagnificationMode.WINDOW);
84 
85         verify(contentObserver).onChange(/* selfChange= */ anyBoolean(), /* uri= */ any());
86     }
87 
88     @Test
unregisterObserver_neverTriggeredWhenCapabilitiesChanged()89     public void unregisterObserver_neverTriggeredWhenCapabilitiesChanged() {
90         MagnificationCapabilities.setCapabilities(mContext,
91                 MagnificationCapabilities.MagnificationMode.FULLSCREEN);
92 
93         ContentObserver contentObserver =
94                 spy(new ContentObserver(/* handler= */ null) {});
95 
96         MagnificationCapabilities.registerObserver(mContext, contentObserver);
97         MagnificationCapabilities.unregisterObserver(mContext, contentObserver);
98         MagnificationCapabilities.setCapabilities(mContext,
99                 MagnificationCapabilities.MagnificationMode.WINDOW);
100 
101         verify(contentObserver, never()).onChange(/* selfChange= */ anyBoolean(), /* uri= */ any());
102     }
103 }
104