Merge "Update activity titles for fragments without preference screen."

tests/robotests/src/com/android/settings/core/InstrumentedPreferenceFragmentTest.java

@@ -0,0 +1,150 @@
+/*
+ * Copyright (C) 2017 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.core;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.support.v7.preference.PreferenceManager;
+import android.support.v7.preference.PreferenceScreen;
+import android.util.FeatureFlagUtils;
+
+import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
+import com.android.settings.R;
+import com.android.settings.testutils.SettingsRobolectricTestRunner;
+import com.android.settings.testutils.shadow.SettingsShadowSystemProperties;
+import com.android.settings.TestConfig;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.annotation.Config;
+import org.robolectric.util.ReflectionHelpers;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION, shadows = {
+        SettingsShadowSystemProperties.class
+})
+public class InstrumentedPreferenceFragmentTest {
+
+    @Mock
+    private PreferenceScreen mScreen;
+    @Mock
+    private PreferenceManager mPreferenceManager;
+    @Mock
+    private Activity mActivity;
+
+    private InstrumentedPreferenceFragmentTestable mFragment;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        when(mPreferenceManager.getPreferenceScreen()).thenReturn(mScreen);
+
+        mFragment = spy(new InstrumentedPreferenceFragmentTestable());
+        ReflectionHelpers.setField(mFragment, "mPreferenceManager", mPreferenceManager);
+    }
+
+    @After
+    public void tearDown() {
+        SettingsShadowSystemProperties.clear();
+    }
+
+    @Test
+    public void onCreatePreferences_preferenceScreenTitleFeatureOff_shouldNotAddPreference() {
+        SettingsShadowSystemProperties.set(
+                FeatureFlagUtils.FFLAG_PREFIX + mFragment.FEATURE_FLAG_USE_PREFERENCE_SCREEN_TITLE,
+                "false");
+
+        mFragment.onCreatePreferences(Bundle.EMPTY, null /* rootKey */);
+
+        verify(mFragment, never()).addPreferencesFromResource(anyInt());
+    }
+
+    @Test
+    public void onCreatePreferences_noPreferenceScreenResId_shouldNotAddPreference() {
+        SettingsShadowSystemProperties.set(
+                FeatureFlagUtils.FFLAG_PREFIX + mFragment.FEATURE_FLAG_USE_PREFERENCE_SCREEN_TITLE,
+                "true");
+
+        mFragment.onCreatePreferences(Bundle.EMPTY, null /* rootKey */);
+
+        verify(mFragment, never()).addPreferencesFromResource(anyInt());
+    }
+
+    @Test
+    public void onCreatePreferences_gotPreferenceScreenResId_shouldAddPreferences() {
+        SettingsShadowSystemProperties.set(
+                FeatureFlagUtils.FFLAG_PREFIX + mFragment.FEATURE_FLAG_USE_PREFERENCE_SCREEN_TITLE,
+                "true");
+        mFragment.setPreferenceScreenResId(R.xml.screen_pinning_settings);
+        when(mFragment.getActivity()).thenReturn(mActivity);
+
+        mFragment.onCreatePreferences(Bundle.EMPTY, null /* rootKey */);
+
+        verify(mFragment).addPreferencesFromResource(R.xml.screen_pinning_settings);
+        verify(mActivity, never()).setTitle(any());
+    }
+
+    @Test
+    public void onCreatePreferences_gotPrefScreenResIdAndTitle_shouldAddPreferencesAndSetTitle() {
+        SettingsShadowSystemProperties.set(
+                FeatureFlagUtils.FFLAG_PREFIX + mFragment.FEATURE_FLAG_USE_PREFERENCE_SCREEN_TITLE,
+                "true");
+        mFragment.setPreferenceScreenResId(R.xml.screen_pinning_settings);
+        when(mFragment.getActivity()).thenReturn(mActivity);
+        final CharSequence title = "Test Title";
+        when(mScreen.getTitle()).thenReturn(title);
+
+        mFragment.onCreatePreferences(Bundle.EMPTY, null /* rootKey */);
+
+        verify(mFragment).addPreferencesFromResource(R.xml.screen_pinning_settings);
+        verify(mActivity).setTitle(title);
+    }
+
+    private static class InstrumentedPreferenceFragmentTestable
+            extends InstrumentedPreferenceFragment {
+
+        private int mScreenId = -1;
+
+        public InstrumentedPreferenceFragmentTestable() {
+        }
+
+        @Override
+        public int getMetricsCategory() {
+            return MetricsEvent.VIEW_UNKNOWN;
+        }
+
+        @Override
+        protected int getPreferenceScreenResId() {
+            return mScreenId;
+        }
+
+        public void setPreferenceScreenResId(int id) {
+            mScreenId = id;
+        }
+    }
+}