Create settings for window magnification (2/n)

Provide a setting for new Magnify area feature and joystick controller

Bug: 146019459
Bug: 146473544
Test: make RunSettingsRoboTests ROBOTEST_FILTER=MagnificationModePreferenceControllerTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=MagnificationWindowControlPreferenceControllerTest
Test: make RunSettingsRoboTests2
Change-Id: Ia32fa073c59ad304e9ef9eb530ba37dd24c2f2f6

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

@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2019 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 com.android.settings.R;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(RobolectricTestRunner.class)
+public class MagnificationModePreferenceControllerTest {
+    private static final String PREF_KEY = "screen_magnification_mode";
+    // TODO(b/146019459): Use magnification_capability.
+    private static final String KEY_CAPABILITY = Settings.System.MASTER_MONO;
+    private static final int WINDOW_SCREEN_VALUE = 2;
+    private static final int ALL_VALUE = 3;
+
+    private Context mContext;
+    private MagnificationModePreferenceController mController;
+
+    @Before
+    public void setUp() {
+        mContext = RuntimeEnvironment.application;
+        mController = new MagnificationModePreferenceController(mContext, PREF_KEY);
+    }
+
+    @Test
+    public void getSummary_saveWindowScreen_shouldReturnWindowScreenSummary() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                KEY_CAPABILITY, WINDOW_SCREEN_VALUE);
+
+        assertThat(mController.getSummary())
+                .isEqualTo(mContext.getString(
+                        R.string.accessibility_magnification_area_settings_window_screen_summary));
+    }
+
+    @Test
+    public void getSummary_saveAll_shouldReturnAllSummary() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                KEY_CAPABILITY, ALL_VALUE);
+
+        assertThat(mController.getSummary())
+                .isEqualTo(mContext.getString(
+                        R.string.accessibility_magnification_area_settings_all_summary));
+    }
+}

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

@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2019 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.os.UserHandle;
+import android.provider.Settings;
+
+import androidx.preference.SwitchPreference;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+@RunWith(RobolectricTestRunner.class)
+public class MagnificationWindowControlPreferenceControllerTest {
+    private static final String PREF_KEY = "screen_magnification_window_control_switch";
+    // TODO(b/146019459): Use magnification_window_control_enabled.
+    private static final String KEY_CONTROL = Settings.System.MASTER_MONO;
+    private Context mContext;
+    private SwitchPreference mPreference;
+    private MagnificationWindowControlPreferenceController mController;
+
+    @Before
+    public void setUp() {
+        mContext = RuntimeEnvironment.application;
+        mPreference = new SwitchPreference(mContext);
+        mController = new MagnificationWindowControlPreferenceController(mContext, PREF_KEY);
+    }
+
+    @Test
+    public void isChecked_enabledWindowControl_shouldReturnTrue() {
+        Settings.System.putIntForUser(mContext.getContentResolver(),
+                KEY_CONTROL, State.ON, UserHandle.USER_CURRENT);
+
+        mController.updateState(mPreference);
+
+        assertThat(mController.isChecked()).isTrue();
+        assertThat(mPreference.isChecked()).isTrue();
+    }
+
+    @Test
+    public void isChecked_disabledWindowControl_shouldReturnFalse() {
+        Settings.System.putIntForUser(mContext.getContentResolver(),
+                KEY_CONTROL, State.OFF, UserHandle.USER_CURRENT);
+
+        mController.updateState(mPreference);
+
+        assertThat(mController.isChecked()).isFalse();
+        assertThat(mPreference.isChecked()).isFalse();
+    }
+
+    @Test
+    public void setChecked_setTrue_shouldEnableWindowControl() {
+        mController.setChecked(true);
+
+        assertThat(Settings.System.getIntForUser(mContext.getContentResolver(),
+                KEY_CONTROL, State.UNKNOWN, UserHandle.USER_CURRENT)).isEqualTo(State.ON);
+    }
+
+    @Test
+    public void setChecked_setFalse_shouldDisableWindowControl() {
+        mController.setChecked(false);
+
+        assertThat(Settings.System.getIntForUser(mContext.getContentResolver(),
+                KEY_CONTROL, State.UNKNOWN, UserHandle.USER_CURRENT)).isEqualTo(State.OFF);
+    }
+
+    @Retention(RetentionPolicy.SOURCE)
+    private @interface State {
+        int UNKNOWN = -1;
+        int OFF = 0;
+        int ON = 1;
+    }
+}