Add Developer option to enable vendor logging in Settings app

Bug: 148822215
Test: make && make RunSettingsRoboTests
Change-Id: Ia8d9002c7f85b607a8d87a69d04d3be1e59abcab

tests/robotests/src/com/android/settings/development/EnableVerboseVendorLoggingPreferenceControllerTest.java

@@ -0,0 +1,102 @@
+/*
+ * 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.development;
+
+import static junit.framework.Assert.assertFalse;
+import static junit.framework.Assert.assertTrue;
+
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+
+import androidx.preference.PreferenceScreen;
+import androidx.preference.SwitchPreference;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(RobolectricTestRunner.class)
+public final class EnableVerboseVendorLoggingPreferenceControllerTest {
+    @Mock
+    private SwitchPreference mPreference;
+    @Mock
+    private PreferenceScreen mPreferenceScreen;
+
+    private Context mContext;
+    private EnableVerboseVendorLoggingPreferenceController mController;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mContext = RuntimeEnvironment.application;
+        mController = new EnableVerboseVendorLoggingPreferenceController(mContext);
+
+        // bypass if IDumpstateDevice service not avalaible at all
+        org.junit.Assume.assumeTrue(mController.isIDumpstateDeviceV1_1ServiceAvailable());
+
+        when(mPreferenceScreen.findPreference(mController.getPreferenceKey()))
+                .thenReturn(mPreference);
+        mController.displayPreference(mPreferenceScreen);
+    }
+
+    @Test
+    public void onPreferenceChange_settingEnable_enableVendorLoggingShouldBeOn() {
+        mController.onPreferenceChange(mPreference, true /* new value */);
+
+        final boolean enabled = mController.getVerboseLoggingEnabled();
+        assertTrue(enabled);
+    }
+
+    @Test
+    public void onPreferenceChange_settingDisable_enableVendorLoggingShouldBeOff() {
+        mController.onPreferenceChange(mPreference,  false /* new value */);
+
+        final boolean enabled = mController.getVerboseLoggingEnabled();
+        assertFalse(enabled);
+    }
+
+    @Test
+    public void updateState_settingDisabled_preferenceShouldNotBeChecked() {
+        mController.setVerboseLoggingEnabled(false);
+        mController.updateState(mPreference);
+
+        verify(mPreference).setChecked(false);
+    }
+
+    @Test
+    public void updateState_settingEnabled_preferenceShouldBeChecked() {
+        mController.setVerboseLoggingEnabled(true);
+        mController.updateState(mPreference);
+
+        verify(mPreference).setChecked(true);
+    }
+
+    @Test
+    public void onDeveloperOptionDisabled_shouldDisablePreference() {
+        mController.onDeveloperOptionsSwitchDisabled();
+
+        final boolean enabled = mController.getVerboseLoggingEnabled();
+        assertFalse(enabled);
+        verify(mPreference).setChecked(false);
+        verify(mPreference).setEnabled(false);
+    }
+}