Merge changes from topic "a11y_rbc"

* changes:
  Add activity for directly navigating to Reduce Bright Colors setting page
  Add a setting page for Reduce Bright Colors under A11y

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

@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2020 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.content.Context;
+
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@RunWith(AndroidJUnit4.class)
+/** TODO(b/170970675): Update and add tests after ColorDisplayService work is integrated */
+public class ReduceBrightColorsIntensityPreferenceControllerTest {
+    private final Context mContext = ApplicationProvider.getApplicationContext();
+    private final ReduceBrightColorsIntensityPreferenceController mPreferenceController =
+            new ReduceBrightColorsIntensityPreferenceController(mContext,
+            "rbc_intensity");
+
+    @Test
+    public void isAvailable_configuredRbcAvailable_enabledRbc_shouldReturnTrue() {
+        assertThat(mPreferenceController.isAvailable()).isTrue();
+    }
+    @Test
+    public void isAvailable_configuredRbcAvailable_disabledRbc_shouldReturnFalse() {
+        assertThat(mPreferenceController.isAvailable()).isTrue();
+    }
+    @Test
+    public void isAvailable_configuredRbcUnavailable_enabledRbc_shouldReturnFalse() {
+        assertThat(mPreferenceController.isAvailable()).isTrue();
+    }
+}

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

@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2020 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.content.Context;
+import android.provider.Settings;
+
+import androidx.preference.SwitchPreference;
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@RunWith(AndroidJUnit4.class)
+public class ReduceBrightColorsPersistencePreferenceControllerTest {
+    private static final String PREF_KEY = "rbc_persist";
+    private static final String RBC_PERSIST =
+            Settings.Secure.REDUCE_BRIGHT_COLORS_PERSIST_ACROSS_REBOOTS;
+    private static final int ON = 1;
+    private static final int OFF = 0;
+    private static final int UNKNOWN = -1;
+
+    private final Context mContext = ApplicationProvider.getApplicationContext();
+    private final SwitchPreference mPreference = new SwitchPreference(mContext);
+    private final ReduceBrightColorsPersistencePreferenceController mController =
+            new ReduceBrightColorsPersistencePreferenceController(mContext, PREF_KEY);
+
+    @Test
+    public void isChecked_enabledRbc_shouldReturnTrue() {
+        Settings.Secure.putInt(mContext.getContentResolver(), RBC_PERSIST, ON);
+
+        mController.updateState(mPreference);
+
+        assertThat(mController.isChecked()).isTrue();
+        assertThat(mPreference.isChecked()).isTrue();
+    }
+
+    @Test
+    public void isChecked_disabledRbc_shouldReturnFalse() {
+        Settings.Secure.putInt(mContext.getContentResolver(), RBC_PERSIST, OFF);
+
+        mController.updateState(mPreference);
+
+        assertThat(mController.isChecked()).isFalse();
+        assertThat(mPreference.isChecked()).isFalse();
+    }
+
+    @Test
+    public void setChecked_setTrue_shouldEnableRbc() {
+        mController.setChecked(true);
+
+        assertThat(
+                Settings.Secure.getInt(mContext.getContentResolver(), RBC_PERSIST, UNKNOWN))
+                .isEqualTo(ON);
+    }
+
+    @Test
+    public void setChecked_setFalse_shouldDisableRbc() {
+        mController.setChecked(false);
+
+        assertThat(
+                Settings.Secure.getInt(mContext.getContentResolver(), RBC_PERSIST, UNKNOWN))
+                .isEqualTo(OFF);
+    }
+}

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

@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2020 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.content.Context;
+import android.provider.Settings;
+
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import com.android.settings.R;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@RunWith(AndroidJUnit4.class)
+public class ReduceBrightColorsPreferenceControllerTest {
+    private static final String PREF_KEY = "rbc_preference";
+    private static final String RBC_ACTIVATED =
+            Settings.Secure.REDUCE_BRIGHT_COLORS_ACTIVATED;
+    private static final int ON = 1;
+    private static final int OFF = 0;
+
+    private final Context mContext = ApplicationProvider.getApplicationContext();
+    private final ReduceBrightColorsPreferenceController mController =
+            new ReduceBrightColorsPreferenceController(mContext, PREF_KEY);
+
+    @Test
+    public void getSummary_enabledRbc_shouldReturnOnSummary() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                RBC_ACTIVATED, ON);
+
+        assertThat(mController.getSummary().toString().contains(
+                mContext.getText(R.string.accessibility_feature_state_on))).isTrue();
+    }
+    @Test
+    public void getSummary_disabledRbc_shouldReturnOffSummary() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                RBC_ACTIVATED, OFF);
+
+        assertThat(mController.getSummary().toString().contains(
+                mContext.getText(R.string.accessibility_feature_state_off))).isTrue();
+    }
+}