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      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.testutils.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.Mockito.mock;
     42 import static org.mockito.Mockito.verify;
     43 import static org.mockito.Mockito.when;
     44 
     45 @RunWith(SettingsRobolectricTestRunner.class)
     46 @Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
     47 public class TtsPreferenceControllerTest {
     48 
     49     @Mock(answer = Answers.RETURNS_DEEP_STUBS)
     50     private Context mContext;
     51     @Mock
     52     private TtsEngines mTtsEngines;
     53     @Mock
     54     private PreferenceScreen mScreen;
     55 
     56     private TtsPreferenceController mController;
     57 
     58     @Before
     59     public void setUp() {
     60         MockitoAnnotations.initMocks(this);
     61 
     62         mController = new TtsPreferenceController(mContext, mTtsEngines);
     63     }
     64 
     65     @Test
     66     public void testIsAvailable_ttsEngineEmpty_shouldReturnFalse() {
     67 
     68         // Not available when there is no engine.
     69         when(mTtsEngines.getEngines()).thenReturn(new ArrayList<>());
     70 
     71         assertThat(mController.isAvailable()).isFalse();
     72     }
     73 
     74     @Test
     75     public void testIsAvailable_ttsEngineInstalled_shouldReturnTrue() {
     76         final List<TextToSpeech.EngineInfo> infolist = new ArrayList<>();
     77         infolist.add(mock(TextToSpeech.EngineInfo.class));
     78         when(mTtsEngines.getEngines()).thenReturn(infolist);
     79 
     80         assertThat(mController.isAvailable()).isTrue();
     81     }
     82 
     83     @Test
     84     public void displayPreference_notAvailable_shouldRemoveCategory() {
     85         final Preference preference = mock(Preference.class);
     86         final Preference category = mock(Preference.class);
     87         when(mScreen.getPreferenceCount()).thenReturn(2);
     88         when(mScreen.getPreference(0)).thenReturn(preference);
     89         when(mScreen.getPreference(1)).thenReturn(category);
     90         when(preference.getKey()).thenReturn(mController.getPreferenceKey());
     91         when(category.getKey()).thenReturn("voice_category");
     92 
     93         mController.displayPreference(mScreen);
     94 
     95         // Remove preference.
     96         verify(mScreen).removePreference(any(Preference.class));
     97     }
     98 }
     99