tests/robotests/src/com/android/settings/language/TtsPreferenceControllerTest.java

   1 /*
   2  * Copyright (C) 2016 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.language;
  18
  19 import android.content.Context;
  20 import android.speech.tts.TextToSpeech;
  21 import android.speech.tts.TtsEngines;
  22 import android.support.v7.preference.Preference;
  23 import android.support.v7.preference.PreferenceScreen;
  24
  25 import com.android.settings.SettingsRobolectricTestRunner;
  26 import com.android.settings.TestConfig;
  27
  28 import org.junit.Before;
  29 import org.junit.Test;
  30 import org.junit.runner.RunWith;
  31 import org.mockito.Answers;
  32 import org.mockito.Mock;
  33 import org.mockito.MockitoAnnotations;
  34 import org.robolectric.annotation.Config;
  35
  36 import java.util.ArrayList;
  37 import java.util.List;
  38
  39 import static com.google.common.truth.Truth.assertThat;
  40 import static org.mockito.Matchers.any;
  41 import static org.mockito.Matchers.anyString;
  42 import static org.mockito.Mockito.mock;
  43 import static org.mockito.Mockito.times;
  44 import static org.mockito.Mockito.verify;
  45 import static org.mockito.Mockito.when;
  46
  47 @RunWith(SettingsRobolectricTestRunner.class)
  48 @Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
  49 public class TtsPreferenceControllerTest {
  50
  51     @Mock(answer = Answers.RETURNS_DEEP_STUBS)
  52     private Context mContext;
  53     @Mock
  54     private TtsEngines mTtsEngines;
  55     @Mock
  56     private PreferenceScreen mScreen;
  57
  58     private TtsPreferenceController mController;
  59
  60     @Before
  61     public void setUp() {
  62         MockitoAnnotations.initMocks(this);
  63
  64         mController = new TtsPreferenceController(mContext, mTtsEngines);
  65     }
  66
  67     @Test
  68     public void testIsAvailable_ttsEngineEmpty_shouldReturnFalse() {
  69
  70         // Not available when there is no engine.
  71         when(mTtsEngines.getEngines()).thenReturn(new ArrayList<>());
  72
  73         assertThat(mController.isAvailable()).isFalse();
  74     }
  75
  76     @Test
  77     public void testIsAvailable_ttsEngineInstalled_shouldReturnTrue() {
  78         final List<TextToSpeech.EngineInfo> infolist = new ArrayList<>();
  79         infolist.add(mock(TextToSpeech.EngineInfo.class));
  80         when(mTtsEngines.getEngines()).thenReturn(infolist);
  81
  82         assertThat(mController.isAvailable()).isTrue();
  83     }
  84
  85     @Test
  86     public void displayPreference_notAvailable_shouldRemoveCategory() {
  87         when(mScreen.findPreference(anyString())).thenReturn(mock(Preference.class));
  88
  89         mController.displayPreference(mScreen);
  90
  91         // Remove both category and preference.
  92         verify(mScreen, times(2)).removePreference(any(Preference.class));
  93     }
  94 }