Merge changes I5409c1e8,I8ed80b44

* changes:
  Refactor CaptionAppearanceFragment to improve maintainability (4/n)
  Refactor CaptionAppearanceFragment to improve maintainability (3/n)

tests/robotests/src/com/android/settings/accessibility/CaptionAppearanceFragmentTest.java

@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.accessibility;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.app.settings.SettingsEnums;
+import android.content.ContentResolver;
+import android.content.Context;
+import android.os.Bundle;
+import android.provider.Settings;
+import android.view.accessibility.CaptioningManager.CaptionStyle;
+
+import androidx.preference.PreferenceCategory;
+import androidx.preference.PreferenceManager;
+import androidx.preference.PreferenceScreen;
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.R;
+import com.android.settings.SettingsActivity;
+import com.android.settings.testutils.XmlTestUtils;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.Spy;
+import org.mockito.junit.MockitoJUnit;
+import org.mockito.junit.MockitoRule;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.util.ReflectionHelpers;
+
+import java.util.List;
+
+/** Tests for {@link CaptionAppearanceFragment}. */
+@RunWith(RobolectricTestRunner.class)
+public class CaptionAppearanceFragmentTest {
+
+    @Rule
+    public MockitoRule mMockitoRule = MockitoJUnit.rule();
+    @Mock
+    private SettingsActivity mActivity;
+    @Mock
+    private PreferenceScreen mScreen;
+    @Mock
+    private PreferenceManager mPreferenceManager;
+    @Mock
+    private ContentResolver mContentResolver;
+    @Mock
+    private PreferenceCategory mCustomPref;
+    @Spy
+    private Context mContext = ApplicationProvider.getApplicationContext();
+    private TestCaptionAppearanceFragment mFragment;
+
+    @Before
+    public void setUp() {
+        mFragment = spy(new TestCaptionAppearanceFragment());
+        doReturn(mActivity).when(mFragment).getActivity();
+        doReturn(mContext).when(mFragment).getContext();
+        doReturn(mCustomPref).when(mFragment).findPreference(mFragment.PREF_CUSTOM);
+        when(mPreferenceManager.getPreferenceScreen()).thenReturn(mScreen);
+        ReflectionHelpers.setField(mFragment, "mPreferenceManager", mPreferenceManager);
+    }
+
+    @Test
+    public void onCreatePreferences_shouldPreferenceIsInvisible() {
+        mFragment.onAttach(mContext);
+
+        mFragment.onCreatePreferences(Bundle.EMPTY, /* rootKey */ null);
+
+        verify(mCustomPref).setVisible(false);
+    }
+
+    @Test
+    public void onCreatePreferences_customValue_shouldPreferenceIsVisible() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_PRESET, CaptionStyle.PRESET_CUSTOM);
+        mFragment.onAttach(mContext);
+
+        mFragment.onCreatePreferences(Bundle.EMPTY, /* rootKey */ null);
+
+        verify(mCustomPref).setVisible(true);
+    }
+
+    @Test
+    public void onStart_registerSpecificContentObserverForSpecificKeys() {
+        when(mContext.getContentResolver()).thenReturn(mContentResolver);
+        mFragment.onAttach(mContext);
+        mFragment.onCreatePreferences(Bundle.EMPTY, /* rootKey */ null);
+
+        mFragment.onStart();
+
+        for (String key : mFragment.CAPTIONING_FEATURE_KEYS) {
+            verify(mContentResolver).registerContentObserver(Settings.Secure.getUriFor(key),
+                    /* notifyForDescendants= */ false, mFragment.mSettingsContentObserver);
+        }
+    }
+
+    @Test
+    public void onStop_unregisterContentObserver() {
+        when(mContext.getContentResolver()).thenReturn(mContentResolver);
+        mFragment.onAttach(mContext);
+        mFragment.onCreatePreferences(Bundle.EMPTY, /* rootKey */ null);
+        mFragment.onStart();
+
+        mFragment.onStop();
+
+        verify(mContentResolver).unregisterContentObserver(mFragment.mSettingsContentObserver);
+    }
+
+    @Test
+    public void getMetricsCategory_returnsCorrectCategory() {
+        assertThat(mFragment.getMetricsCategory()).isEqualTo(
+                SettingsEnums.ACCESSIBILITY_CAPTION_APPEARANCE);
+    }
+
+    @Test
+    public void getLogTag_returnsCorrectTag() {
+        assertThat(mFragment.getLogTag()).isEqualTo("CaptionAppearanceFragment");
+    }
+
+    @Test
+    public void getNonIndexableKeys_existInXmlLayout() {
+        final List<String> niks = CaptionAppearanceFragment.SEARCH_INDEX_DATA_PROVIDER
+                .getNonIndexableKeys(mContext);
+        final List<String> keys = XmlTestUtils.getKeysFromPreferenceXml(mContext,
+                R.xml.captioning_appearance);
+
+        assertThat(keys).containsAtLeastElementsIn(niks);
+    }
+
+    private static class TestCaptionAppearanceFragment extends CaptionAppearanceFragment {
+
+        @Override
+        public int getPreferenceScreenResId() {
+            return R.xml.placeholder_prefs;
+        }
+    }
+}

tests/robotests/src/com/android/settings/accessibility/CaptionBackgroundColorControllerTest.java

@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.accessibility;
+
+import static com.android.settings.accessibility.AccessibilityUtil.State.OFF;
+import static com.android.settings.accessibility.AccessibilityUtil.State.ON;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.provider.Settings;
+import android.util.AttributeSet;
+import android.view.accessibility.CaptioningManager;
+
+import androidx.preference.PreferenceScreen;
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.core.BasePreferenceController;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnit;
+import org.mockito.junit.MockitoRule;
+import org.robolectric.Robolectric;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.shadow.api.Shadow;
+import org.robolectric.shadows.ShadowCaptioningManager;
+
+/** Tests for {@link CaptionBackgroundColorController}. */
+@RunWith(RobolectricTestRunner.class)
+public class CaptionBackgroundColorControllerTest {
+
+    @Rule
+    public final MockitoRule mMockitoRule = MockitoJUnit.rule();
+    @Mock
+    private PreferenceScreen mScreen;
+    private final Context mContext = ApplicationProvider.getApplicationContext();
+    private CaptionBackgroundColorController mController;
+    private ColorPreference mPreference;
+    private ShadowCaptioningManager mShadowCaptioningManager;
+
+    @Before
+    public void setUp() {
+        mController = new CaptionBackgroundColorController(mContext, "captioning_background_color");
+        final AttributeSet attributeSet = Robolectric.buildAttributeSet().build();
+        mPreference = new ColorPreference(mContext, attributeSet);
+        when(mScreen.findPreference(mController.getPreferenceKey())).thenReturn(mPreference);
+        CaptioningManager captioningManager = mContext.getSystemService(CaptioningManager.class);
+        mShadowCaptioningManager = Shadow.extract(captioningManager);
+    }
+
+    @Test
+    public void getAvailabilityStatus_shouldReturnAvailable() {
+        assertThat(mController.getAvailabilityStatus())
+                .isEqualTo(BasePreferenceController.AVAILABLE);
+    }
+
+    @Test
+    public void getSummary_defaultValue_shouldReturnBlack() {
+        mController.displayPreference(mScreen);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("Black");
+    }
+
+    @Test
+    public void getSummary_redValue_shouldReturnRed() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR, 0xFFFF0000);
+
+        mController.displayPreference(mScreen);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("Red");
+    }
+
+    @Test
+    public void setRedValue_shouldReturnRed() {
+        mController.displayPreference(mScreen);
+
+        mPreference.setValue(0xFFFF0000);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("Red");
+    }
+
+    @Test
+    public void onValueChanged_shouldSetCaptionEnabled() {
+        mShadowCaptioningManager.setEnabled(false);
+        mController.displayPreference(mScreen);
+
+        mController.onValueChanged(mPreference, 0xFFFF0000);
+
+        final boolean isCaptionEnabled = Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_ENABLED, OFF) == ON;
+        assertThat(isCaptionEnabled).isTrue();
+    }
+}

tests/robotests/src/com/android/settings/accessibility/CaptionBackgroundOpacityControllerTest.java

@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.accessibility;
+
+import static com.android.settings.accessibility.AccessibilityUtil.State.OFF;
+import static com.android.settings.accessibility.AccessibilityUtil.State.ON;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.provider.Settings;
+import android.util.AttributeSet;
+import android.view.accessibility.CaptioningManager;
+
+import androidx.preference.PreferenceScreen;
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.core.BasePreferenceController;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnit;
+import org.mockito.junit.MockitoRule;
+import org.robolectric.Robolectric;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.shadow.api.Shadow;
+import org.robolectric.shadows.ShadowCaptioningManager;
+
+/** Tests for {@link CaptionBackgroundOpacityController}. */
+@RunWith(RobolectricTestRunner.class)
+public class CaptionBackgroundOpacityControllerTest {
+
+    @Rule
+    public final MockitoRule mMockitoRule = MockitoJUnit.rule();
+    @Mock
+    private PreferenceScreen mScreen;
+    private final Context mContext = ApplicationProvider.getApplicationContext();
+    private CaptionBackgroundOpacityController mController;
+    private ColorPreference mPreference;
+    private ShadowCaptioningManager mShadowCaptioningManager;
+
+    @Before
+    public void setUp() {
+        mController =
+                new CaptionBackgroundOpacityController(mContext, "captioning_background_opacity");
+        final AttributeSet attributeSet = Robolectric.buildAttributeSet().build();
+        mPreference = new ColorPreference(mContext, attributeSet);
+        when(mScreen.findPreference(mController.getPreferenceKey())).thenReturn(mPreference);
+        CaptioningManager captioningManager = mContext.getSystemService(CaptioningManager.class);
+        mShadowCaptioningManager = Shadow.extract(captioningManager);
+    }
+
+    @Test
+    public void getAvailabilityStatus_shouldReturnAvailable() {
+        assertThat(mController.getAvailabilityStatus())
+                .isEqualTo(BasePreferenceController.AVAILABLE);
+    }
+
+    @Test
+    public void getSummary_defaultValue_shouldReturnNonTransparent() {
+        mController.displayPreference(mScreen);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("100%");
+    }
+
+    @Test
+    public void getSummary_halfTransparentValue_shouldReturnHalfTransparent() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR, 0x80FFFFFF);
+
+        mController.displayPreference(mScreen);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("50%");
+    }
+
+    @Test
+    public void setHalfTransparentValue_shouldReturnHalfTransparent() {
+        mController.displayPreference(mScreen);
+
+        mPreference.setValue(0x80FFFFFF);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("50%");
+    }
+
+    @Test
+    public void onValueChanged_shouldSetCaptionEnabled() {
+        mShadowCaptioningManager.setEnabled(false);
+        mController.displayPreference(mScreen);
+
+        mController.onValueChanged(mPreference, 0x80FFFFFF);
+
+        final boolean isCaptionEnabled = Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_ENABLED, OFF) == ON;
+        assertThat(isCaptionEnabled).isTrue();
+    }
+}

tests/robotests/src/com/android/settings/accessibility/CaptionEdgeColorControllerTest.java

@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.accessibility;
+
+import static com.android.settings.accessibility.AccessibilityUtil.State.OFF;
+import static com.android.settings.accessibility.AccessibilityUtil.State.ON;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.provider.Settings;
+import android.util.AttributeSet;
+import android.view.accessibility.CaptioningManager;
+
+import androidx.preference.PreferenceScreen;
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.core.BasePreferenceController;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnit;
+import org.mockito.junit.MockitoRule;
+import org.robolectric.Robolectric;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.shadow.api.Shadow;
+import org.robolectric.shadows.ShadowCaptioningManager;
+
+/** Tests for {@link CaptionEdgeColorController}. */
+@RunWith(RobolectricTestRunner.class)
+public class CaptionEdgeColorControllerTest {
+    @Rule
+    public final MockitoRule mMockitoRule = MockitoJUnit.rule();
+    @Mock
+    private PreferenceScreen mScreen;
+    private final Context mContext = ApplicationProvider.getApplicationContext();
+    private CaptionEdgeColorController mController;
+    private ColorPreference mPreference;
+    private ShadowCaptioningManager mShadowCaptioningManager;
+
+    @Before
+    public void setUp() {
+        mController = new CaptionEdgeColorController(mContext, "captioning_edge_color");
+        final AttributeSet attributeSet = Robolectric.buildAttributeSet().build();
+        mPreference = new ColorPreference(mContext, attributeSet);
+        when(mScreen.findPreference(mController.getPreferenceKey())).thenReturn(mPreference);
+        CaptioningManager captioningManager = mContext.getSystemService(CaptioningManager.class);
+        mShadowCaptioningManager = Shadow.extract(captioningManager);
+    }
+
+    @Test
+    public void getAvailabilityStatus_shouldReturnAvailable() {
+        assertThat(mController.getAvailabilityStatus())
+                .isEqualTo(BasePreferenceController.AVAILABLE);
+    }
+
+    @Test
+    public void getSummary_defaultValue_shouldReturnBlack() {
+        mController.displayPreference(mScreen);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("Black");
+    }
+
+    @Test
+    public void getSummary_redValue_shouldReturnRed() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_EDGE_COLOR, 0xFFFF0000);
+
+        mController.displayPreference(mScreen);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("Red");
+    }
+
+    @Test
+    public void setRedValue_shouldReturnRed() {
+        mController.displayPreference(mScreen);
+
+        mPreference.setValue(0xFFFF0000);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("Red");
+    }
+
+    @Test
+    public void onValueChanged_shouldSetCaptionEnabled() {
+        mShadowCaptioningManager.setEnabled(false);
+        mController.displayPreference(mScreen);
+
+        mController.onValueChanged(mPreference, 0xFFFF0000);
+
+        final boolean isCaptionEnabled = Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_ENABLED, OFF) == ON;
+        assertThat(isCaptionEnabled).isTrue();
+    }
+}

tests/robotests/src/com/android/settings/accessibility/CaptionEdgeTypeControllerTest.java

@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.accessibility;
+
+import static com.android.settings.accessibility.AccessibilityUtil.State.OFF;
+import static com.android.settings.accessibility.AccessibilityUtil.State.ON;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.provider.Settings;
+import android.util.AttributeSet;
+import android.view.accessibility.CaptioningManager;
+import android.view.accessibility.CaptioningManager.CaptionStyle;
+
+import androidx.preference.PreferenceScreen;
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.core.BasePreferenceController;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnit;
+import org.mockito.junit.MockitoRule;
+import org.robolectric.Robolectric;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.shadow.api.Shadow;
+import org.robolectric.shadows.ShadowCaptioningManager;
+
+/** Tests for {@link CaptionEdgeTypeController}. */
+@RunWith(RobolectricTestRunner.class)
+public class CaptionEdgeTypeControllerTest {
+
+    @Rule
+    public final MockitoRule mMockitoRule = MockitoJUnit.rule();
+    @Mock
+    private PreferenceScreen mScreen;
+    private final Context mContext = ApplicationProvider.getApplicationContext();
+    private CaptionEdgeTypeController mController;
+    private EdgeTypePreference mPreference;
+    private ShadowCaptioningManager mShadowCaptioningManager;
+
+    @Before
+    public void setUp() {
+        mController = new CaptionEdgeTypeController(mContext, "captioning_edge_type");
+        final AttributeSet attributeSet = Robolectric.buildAttributeSet().build();
+        mPreference = new EdgeTypePreference(mContext, attributeSet);
+        when(mScreen.findPreference(mController.getPreferenceKey())).thenReturn(mPreference);
+        CaptioningManager captioningManager = mContext.getSystemService(CaptioningManager.class);
+        mShadowCaptioningManager = Shadow.extract(captioningManager);
+    }
+
+    @Test
+    public void getAvailabilityStatus_shouldReturnAvailable() {
+        assertThat(mController.getAvailabilityStatus())
+                .isEqualTo(BasePreferenceController.AVAILABLE);
+    }
+
+    @Test
+    public void getSummary_defaultValue_shouldReturnNone() {
+        mController.displayPreference(mScreen);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("None");
+    }
+
+    @Test
+    public void getSummary_outlineValue_shouldReturnOutline() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_EDGE_TYPE, CaptionStyle.EDGE_TYPE_OUTLINE);
+
+        mController.displayPreference(mScreen);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("Outline");
+    }
+
+    @Test
+    public void setOutlineValue_shouldReturnOutline() {
+        mController.displayPreference(mScreen);
+
+        mPreference.setValue(CaptionStyle.EDGE_TYPE_OUTLINE);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("Outline");
+    }
+
+    @Test
+    public void onValueChanged_shouldSetCaptionEnabled() {
+        mShadowCaptioningManager.setEnabled(false);
+        mController.displayPreference(mScreen);
+
+        mController.onValueChanged(mPreference, CaptionStyle.EDGE_TYPE_OUTLINE);
+
+        final boolean isCaptionEnabled = Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_ENABLED, OFF) == ON;
+        assertThat(isCaptionEnabled).isTrue();
+    }
+}

tests/robotests/src/com/android/settings/accessibility/CaptionForegroundColorControllerTest.java

@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.accessibility;
+
+import static com.android.settings.accessibility.AccessibilityUtil.State.OFF;
+import static com.android.settings.accessibility.AccessibilityUtil.State.ON;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.provider.Settings;
+import android.util.AttributeSet;
+import android.view.accessibility.CaptioningManager;
+
+import androidx.preference.PreferenceScreen;
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.core.BasePreferenceController;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnit;
+import org.mockito.junit.MockitoRule;
+import org.robolectric.Robolectric;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.shadow.api.Shadow;
+import org.robolectric.shadows.ShadowCaptioningManager;
+
+/** Tests for {@link CaptionForegroundColorController}. */
+@RunWith(RobolectricTestRunner.class)
+public class CaptionForegroundColorControllerTest {
+
+    @Rule
+    public final MockitoRule mMockitoRule = MockitoJUnit.rule();
+    @Mock
+    private PreferenceScreen mScreen;
+    private final Context mContext = ApplicationProvider.getApplicationContext();
+    private CaptionForegroundColorController mController;
+    private ColorPreference mPreference;
+    private ShadowCaptioningManager mShadowCaptioningManager;
+
+    @Before
+    public void setUp() {
+        mController = new CaptionForegroundColorController(mContext, "captioning_foreground_color");
+        final AttributeSet attributeSet = Robolectric.buildAttributeSet().build();
+        mPreference = new ColorPreference(mContext, attributeSet);
+        when(mScreen.findPreference(mController.getPreferenceKey())).thenReturn(mPreference);
+        CaptioningManager captioningManager = mContext.getSystemService(CaptioningManager.class);
+        mShadowCaptioningManager = Shadow.extract(captioningManager);
+    }
+
+    @Test
+    public void getAvailabilityStatus_shouldReturnAvailable() {
+        assertThat(mController.getAvailabilityStatus())
+                .isEqualTo(BasePreferenceController.AVAILABLE);
+    }
+
+    @Test
+    public void getSummary_defaultValue_shouldReturnWhite() {
+        mController.displayPreference(mScreen);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("White");
+    }
+
+    @Test
+    public void getSummary_redValue_shouldReturnRed() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR, 0xFFFF0000);
+
+        mController.displayPreference(mScreen);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("Red");
+    }
+
+    @Test
+    public void setRedValue_shouldReturnRed() {
+        mController.displayPreference(mScreen);
+
+        mPreference.setValue(0xFFFF0000);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("Red");
+    }
+
+    @Test
+    public void onValueChanged_shouldSetCaptionEnabled() {
+        mShadowCaptioningManager.setEnabled(false);
+        mController.displayPreference(mScreen);
+
+        mController.onValueChanged(mPreference, 0xFFFF0000);
+
+        final boolean isCaptionEnabled = Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_ENABLED, OFF) == ON;
+        assertThat(isCaptionEnabled).isTrue();
+    }
+}

tests/robotests/src/com/android/settings/accessibility/CaptionForegroundOpacityControllerTest.java

@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.accessibility;
+
+import static com.android.settings.accessibility.AccessibilityUtil.State.OFF;
+import static com.android.settings.accessibility.AccessibilityUtil.State.ON;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.provider.Settings;
+import android.util.AttributeSet;
+import android.view.accessibility.CaptioningManager;
+
+import androidx.preference.PreferenceScreen;
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.core.BasePreferenceController;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnit;
+import org.mockito.junit.MockitoRule;
+import org.robolectric.Robolectric;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.shadow.api.Shadow;
+import org.robolectric.shadows.ShadowCaptioningManager;
+
+/** Tests for {@link CaptionForegroundOpacityController}. */
+@RunWith(RobolectricTestRunner.class)
+public class CaptionForegroundOpacityControllerTest {
+
+    @Rule
+    public final MockitoRule mMockitoRule = MockitoJUnit.rule();
+    @Mock
+    private PreferenceScreen mScreen;
+    private final Context mContext = ApplicationProvider.getApplicationContext();
+    private CaptionForegroundOpacityController mController;
+    private ColorPreference mPreference;
+    private ShadowCaptioningManager mShadowCaptioningManager;
+
+    @Before
+    public void setUp() {
+        mController =
+                new CaptionForegroundOpacityController(mContext, "captioning_foreground_opacity");
+        final AttributeSet attributeSet = Robolectric.buildAttributeSet().build();
+        mPreference = new ColorPreference(mContext, attributeSet);
+        when(mScreen.findPreference(mController.getPreferenceKey())).thenReturn(mPreference);
+        CaptioningManager captioningManager = mContext.getSystemService(CaptioningManager.class);
+        mShadowCaptioningManager = Shadow.extract(captioningManager);
+    }
+
+    @Test
+    public void getAvailabilityStatus_shouldReturnAvailable() {
+        assertThat(mController.getAvailabilityStatus())
+                .isEqualTo(BasePreferenceController.AVAILABLE);
+    }
+
+    @Test
+    public void getSummary_defaultValue_shouldReturnNonTransparent() {
+        mController.displayPreference(mScreen);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("100%");
+    }
+
+    @Test
+    public void getSummary_halfTransparentValue_shouldReturnHalfTransparent() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR, 0x80FFFFFF);
+
+        mController.displayPreference(mScreen);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("50%");
+    }
+
+    @Test
+    public void setHalfTransparentValue_shouldReturnHalfTransparent() {
+        mController.displayPreference(mScreen);
+
+        mPreference.setValue(0x80FFFFFF);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("50%");
+    }
+
+    @Test
+    public void onValueChanged_shouldSetCaptionEnabled() {
+        mShadowCaptioningManager.setEnabled(false);
+        mController.displayPreference(mScreen);
+
+        mController.onValueChanged(mPreference, 0x80FFFFFF);
+
+        final boolean isCaptionEnabled = Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_ENABLED, OFF) == ON;
+        assertThat(isCaptionEnabled).isTrue();
+    }
+}

tests/robotests/src/com/android/settings/accessibility/CaptionHelperTest.java

@@ -24,10 +24,12 @@ import static com.google.common.truth.Truth.assertThat;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
+import android.content.ContentResolver;
 import android.content.Context;
 import android.provider.Settings;
 import android.view.View;
 import android.view.accessibility.CaptioningManager;
+import android.view.accessibility.CaptioningManager.CaptionStyle;
 
 import androidx.test.core.app.ApplicationProvider;
 
@@ -60,12 +62,14 @@ public class CaptionHelperTest {
     private View mPreviewWindow;
     @Spy
     private final Context mContext = ApplicationProvider.getApplicationContext();
+    private ContentResolver mContentResolver;
     private CaptionHelper mCaptionHelper;
 
     @Before
     public void setUp() {
         when(mContext.getSystemService(CaptioningManager.class)).thenReturn(mCaptioningManager);
         mCaptionHelper = new CaptionHelper(mContext);
+        mContentResolver = mContext.getContentResolver();
     }
 
     @Test
@@ -129,4 +133,53 @@ public class CaptionHelperTest {
                 Settings.Secure.ACCESSIBILITY_CAPTIONING_ENABLED, OFF) == ON;
         assertThat(isCaptionEnabled).isFalse();
     }
+
+    @Test
+    public void setBackgroundColor_shouldReturnSpecificColor() {
+        mCaptionHelper.setBackgroundColor(0xFFFF0000);
+
+        final int backgroundColor = mCaptionHelper.getBackgroundColor();
+        assertThat(backgroundColor).isEqualTo(0xFFFF0000);
+    }
+
+    @Test
+    public void setForegroundColor_shouldReturnSpecificColor() {
+        mCaptionHelper.setForegroundColor(0xFFFF0000);
+
+        final int foregroundColor = mCaptionHelper.getForegroundColor();
+        assertThat(foregroundColor).isEqualTo(0xFFFF0000);
+    }
+
+    @Test
+    public void setWindowColor_shouldReturnSpecificColor() {
+        mCaptionHelper.setWindowColor(0xFFFF0000);
+
+        final int windowColor = mCaptionHelper.getWindowColor();
+        assertThat(windowColor).isEqualTo(0xFFFF0000);
+    }
+
+    @Test
+    public void setEdgeColor_shouldReturnSpecificColor() {
+        mCaptionHelper.setEdgeColor(0xFFFF0000);
+
+        final int edgeColor = mCaptionHelper.getEdgeColor();
+        assertThat(edgeColor).isEqualTo(0xFFFF0000);
+    }
+
+    @Test
+    public void setEdgeType_shouldReturnSpecificType() {
+        mCaptionHelper.setEdgeType(CaptionStyle.EDGE_TYPE_OUTLINE);
+
+        final int edgeType = mCaptionHelper.getEdgeType();
+        assertThat(edgeType).isEqualTo(CaptionStyle.EDGE_TYPE_OUTLINE);
+    }
+
+    @Test
+    public void setRawUserStyle_shouldReturnSpecificStyle() {
+        mCaptionHelper.setRawUserStyle(CaptionStyle.PRESET_CUSTOM);
+
+        final int style = Settings.Secure.getInt(mContentResolver,
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_PRESET, 0);
+        assertThat(style).isEqualTo(CaptionStyle.PRESET_CUSTOM);
+    }
 }

tests/robotests/src/com/android/settings/accessibility/CaptionPresetControllerTest.java

@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.accessibility;
+
+import static com.android.settings.accessibility.AccessibilityUtil.State.OFF;
+import static com.android.settings.accessibility.AccessibilityUtil.State.ON;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.provider.Settings;
+import android.util.AttributeSet;
+import android.view.accessibility.CaptioningManager;
+import android.view.accessibility.CaptioningManager.CaptionStyle;
+
+import androidx.preference.PreferenceScreen;
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.core.BasePreferenceController;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnit;
+import org.mockito.junit.MockitoRule;
+import org.robolectric.Robolectric;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.shadow.api.Shadow;
+import org.robolectric.shadows.ShadowCaptioningManager;
+
+/** Tests for {@link CaptionPresetController}. */
+@RunWith(RobolectricTestRunner.class)
+public class CaptionPresetControllerTest {
+
+    @Rule
+    public final MockitoRule mMockitoRule = MockitoJUnit.rule();
+    @Mock
+    private PreferenceScreen mScreen;
+    private final Context mContext = ApplicationProvider.getApplicationContext();
+    private CaptionPresetController mController;
+    private PresetPreference mPreference;
+    private ShadowCaptioningManager mShadowCaptioningManager;
+
+    @Before
+    public void setUp() {
+        mController = new CaptionPresetController(mContext, "captioning_preset");
+        final AttributeSet attributeSet = Robolectric.buildAttributeSet().build();
+        mPreference = new PresetPreference(mContext, attributeSet);
+        when(mScreen.findPreference(mController.getPreferenceKey())).thenReturn(mPreference);
+        CaptioningManager captioningManager = mContext.getSystemService(CaptioningManager.class);
+        mShadowCaptioningManager = Shadow.extract(captioningManager);
+    }
+
+    @Test
+    public void getAvailabilityStatus_shouldReturnAvailable() {
+        assertThat(mController.getAvailabilityStatus())
+                .isEqualTo(BasePreferenceController.AVAILABLE);
+    }
+
+    @Test
+    public void getSummary_defaultValue_shouldReturnWhiteOnBlack() {
+        mController.displayPreference(mScreen);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("White on black");
+    }
+
+    @Test
+    public void getSummary_customValue_shouldReturnCustom() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_PRESET, CaptionStyle.PRESET_CUSTOM);
+
+        mController.displayPreference(mScreen);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("Custom");
+    }
+
+    @Test
+    public void setCustomValue_shouldReturnCustom() {
+        mController.displayPreference(mScreen);
+
+        mPreference.setValue(CaptionStyle.PRESET_CUSTOM);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("Custom");
+    }
+
+    @Test
+    public void onValueChanged_shouldSetCaptionEnabled() {
+        mShadowCaptioningManager.setEnabled(false);
+        mController.displayPreference(mScreen);
+
+        mController.onValueChanged(mPreference, CaptionStyle.PRESET_CUSTOM);
+
+        final boolean isCaptionEnabled = Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_ENABLED, OFF) == ON;
+        assertThat(isCaptionEnabled).isTrue();
+    }
+}

tests/robotests/src/com/android/settings/accessibility/CaptionUtilsTest.java

@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.accessibility;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import android.graphics.Color;
+import android.view.accessibility.CaptioningManager;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+
+/** Tests for {@link CaptionUtils}. */
+@RunWith(RobolectricTestRunner.class)
+public class CaptionUtilsTest {
+
+    @Test
+    public void parseColor_defaultPackedColor_shouldReturnUnspecified() {
+        final int color = CaptionUtils.parseColor(0xFFFF00);
+
+        assertThat(color).isEqualTo(CaptioningManager.CaptionStyle.COLOR_UNSPECIFIED);
+    }
+
+    @Test
+    public void parseColor_unrecognizedColor_shouldReturnTransparent() {
+        final int color = CaptionUtils.parseColor(0x00);
+
+        assertThat(color).isEqualTo(Color.TRANSPARENT);
+    }
+
+    @Test
+    public void parseColor_redColor_shouldReturnRed() {
+        final int color = CaptionUtils.parseColor(0xFFFF0000);
+
+        assertThat(color).isEqualTo(Color.RED);
+    }
+
+    @Test
+    public void parseOpacity_defaultPackedColor_shouldReturnUnspecified() {
+        final int color = CaptionUtils.parseOpacity(0xFFFF00);
+
+        assertThat(color).isEqualTo(CaptioningManager.CaptionStyle.COLOR_UNSPECIFIED);
+    }
+
+    @Test
+    public void parseOpacity_unrecognizedColor_shouldReturnTransparent() {
+        final int color = CaptionUtils.parseOpacity(0x00);
+
+        assertThat(color).isEqualTo(0xFFFFFF);
+    }
+
+    @Test
+    public void parseOpacity_halfTransparentValue_shouldReturnHalfTransparent() {
+        final int color = CaptionUtils.parseOpacity(0x80FFFFFF);
+
+        assertThat(color).isEqualTo(0x80FFFFFF);
+    }
+
+    @Test
+    public void mergeColorOpacity_halfTransparentRedValue_shouldReturnMergeColorOpacityValue() {
+        final int color = CaptionUtils.mergeColorOpacity(0xFFFF0000, 0x80FFFFFF);
+
+        assertThat(color).isEqualTo(0x80FF0000);
+    }
+}

tests/robotests/src/com/android/settings/accessibility/CaptionWindowColorControllerTest.java

@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.accessibility;
+
+import static com.android.settings.accessibility.AccessibilityUtil.State.OFF;
+import static com.android.settings.accessibility.AccessibilityUtil.State.ON;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.provider.Settings;
+import android.util.AttributeSet;
+import android.view.accessibility.CaptioningManager;
+
+import androidx.preference.PreferenceScreen;
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.R;
+import com.android.settings.core.BasePreferenceController;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnit;
+import org.mockito.junit.MockitoRule;
+import org.robolectric.Robolectric;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.shadow.api.Shadow;
+import org.robolectric.shadows.ShadowCaptioningManager;
+
+/** Tests for {@link CaptionWindowColorController}. */
+@RunWith(RobolectricTestRunner.class)
+public class CaptionWindowColorControllerTest {
+
+    @Rule
+    public final MockitoRule mMockitoRule = MockitoJUnit.rule();
+    @Mock
+    private PreferenceScreen mScreen;
+    private final Context mContext = ApplicationProvider.getApplicationContext();
+    private CaptionWindowColorController mController;
+    private ColorPreference mPreference;
+    private ShadowCaptioningManager mShadowCaptioningManager;
+
+    @Before
+    public void setUp() {
+        mController = new CaptionWindowColorController(mContext, "captioning_window_color");
+        final AttributeSet attributeSet = Robolectric.buildAttributeSet().build();
+        mPreference = new ColorPreference(mContext, attributeSet);
+        when(mScreen.findPreference(mController.getPreferenceKey())).thenReturn(mPreference);
+        CaptioningManager captioningManager = mContext.getSystemService(CaptioningManager.class);
+        mShadowCaptioningManager = Shadow.extract(captioningManager);
+    }
+
+    @Test
+    public void getAvailabilityStatus_shouldReturnAvailable() {
+        assertThat(mController.getAvailabilityStatus())
+                .isEqualTo(BasePreferenceController.AVAILABLE);
+    }
+
+    @Test
+    public void getSummary_defaultValue_shouldReturnNone() {
+        mController.displayPreference(mScreen);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo(
+                mContext.getString(R.string.color_none));
+    }
+
+    @Test
+    public void getSummary_redValue_shouldReturnRed() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_WINDOW_COLOR, 0xFFFF0000);
+
+        mController.displayPreference(mScreen);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("Red");
+    }
+
+    @Test
+    public void setRedValue_shouldReturnRed() {
+        mController.displayPreference(mScreen);
+
+        mPreference.setValue(0xFFFF0000);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("Red");
+    }
+
+    @Test
+    public void onValueChanged_shouldSetCaptionEnabled() {
+        mShadowCaptioningManager.setEnabled(false);
+        mController.displayPreference(mScreen);
+
+        mController.onValueChanged(mPreference, 0xFFFF0000);
+
+        final boolean isCaptionEnabled = Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_ENABLED, OFF) == ON;
+        assertThat(isCaptionEnabled).isTrue();
+    }
+}

tests/robotests/src/com/android/settings/accessibility/CaptionWindowOpacityControllerTest.java

@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.accessibility;
+
+import static com.android.settings.accessibility.AccessibilityUtil.State.OFF;
+import static com.android.settings.accessibility.AccessibilityUtil.State.ON;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+import android.provider.Settings;
+import android.util.AttributeSet;
+import android.view.accessibility.CaptioningManager;
+
+import androidx.preference.PreferenceScreen;
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.core.BasePreferenceController;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnit;
+import org.mockito.junit.MockitoRule;
+import org.robolectric.Robolectric;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.shadow.api.Shadow;
+import org.robolectric.shadows.ShadowCaptioningManager;
+
+/** Tests for {@link CaptionWindowOpacityController}. */
+@RunWith(RobolectricTestRunner.class)
+public class CaptionWindowOpacityControllerTest {
+
+    @Rule
+    public final MockitoRule mMockitoRule = MockitoJUnit.rule();
+    @Mock
+    private PreferenceScreen mScreen;
+    private final Context mContext = ApplicationProvider.getApplicationContext();
+    private CaptionWindowOpacityController mController;
+    private ColorPreference mPreference;
+    private ShadowCaptioningManager mShadowCaptioningManager;
+
+    @Before
+    public void setUp() {
+        mController = new CaptionWindowOpacityController(mContext, "captioning_window_opacity");
+        final AttributeSet attributeSet = Robolectric.buildAttributeSet().build();
+        mPreference = new ColorPreference(mContext, attributeSet);
+        when(mScreen.findPreference(mController.getPreferenceKey())).thenReturn(mPreference);
+        CaptioningManager captioningManager = mContext.getSystemService(CaptioningManager.class);
+        mShadowCaptioningManager = Shadow.extract(captioningManager);
+    }
+
+    @Test
+    public void getAvailabilityStatus_shouldReturnAvailable() {
+        assertThat(mController.getAvailabilityStatus())
+                .isEqualTo(BasePreferenceController.AVAILABLE);
+    }
+
+    @Test
+    public void getSummary_defaultValue_shouldReturnNonTransparent() {
+        mController.displayPreference(mScreen);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("100%");
+    }
+
+    @Test
+    public void getSummary_halfTransparentValue_shouldReturnHalfTransparent() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_WINDOW_COLOR, 0x80FFFFFF);
+
+        mController.displayPreference(mScreen);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("50%");
+    }
+
+    @Test
+    public void setHalfTransparentValue_shouldReturnHalfTransparent() {
+        mController.displayPreference(mScreen);
+
+        mPreference.setValue(0x80FFFFFF);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo("50%");
+    }
+
+    @Test
+    public void onValueChanged_shouldSetCaptionEnabled() {
+        mShadowCaptioningManager.setEnabled(false);
+        mController.displayPreference(mScreen);
+
+        mController.onValueChanged(mPreference, 0x80FFFFFF);
+
+        final boolean isCaptionEnabled = Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.ACCESSIBILITY_CAPTIONING_ENABLED, OFF) == ON;
+        assertThat(isCaptionEnabled).isTrue();
+    }
+}