Add SearchIndexable to improve search coverage

- Add searachIndex test
- Increase accessibility framework feature fragment coverage

Bug: 197695932
Test: make RunSettingsRoboTests
Change-Id: Icb7e2cf70bb0443304af7866efd48bed1d9af5bf

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

@@ -31,6 +31,7 @@ import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.when;
 
+import android.app.settings.SettingsEnums;
 import android.content.ComponentName;
 import android.content.Context;
 import android.os.Bundle;
@@ -45,7 +46,9 @@ import androidx.preference.PreferenceManager;
 import androidx.preference.PreferenceScreen;
 import androidx.test.core.app.ApplicationProvider;
 
+import com.android.settings.R;
 import com.android.settings.accessibility.AccessibilityUtil.QuickSettingsTooltipType;
+import com.android.settings.testutils.XmlTestUtils;
 import com.android.settings.testutils.shadow.ShadowFragment;
 import com.android.settings.widget.SettingsMainSwitchPreference;
 import com.android.settingslib.widget.SelectorWithWidgetPreference;
@@ -61,6 +64,8 @@ import org.robolectric.annotation.Config;
 import org.robolectric.shadow.api.Shadow;
 import org.robolectric.shadows.ShadowApplication;
 
+import java.util.List;
+
 /** Tests for {@link ToggleDaltonizerPreferenceFragment} */
 @RunWith(RobolectricTestRunner.class)
 @Config(shadows = ShadowFragment.class)
@@ -182,6 +187,34 @@ public class ToggleDaltonizerPreferenceFragmentTest {
         assertThat(getLatestPopupWindow()).isNull();
     }
 
+    @Test
+    public void getMetricsCategory_returnsCorrectCategory() {
+        assertThat(mFragment.getMetricsCategory()).isEqualTo(
+                SettingsEnums.ACCESSIBILITY_TOGGLE_DALTONIZER);
+    }
+
+    @Test
+    public void getPreferenceScreenResId_returnsCorrectXml() {
+        assertThat(mFragment.getPreferenceScreenResId()).isEqualTo(
+                R.xml.accessibility_daltonizer_settings);
+    }
+
+    @Test
+    public void getHelpResource_returnsCorrectHelpResource() {
+        assertThat(mFragment.getHelpResource()).isEqualTo(R.string.help_url_color_correction);
+    }
+
+    @Test
+    public void getNonIndexableKeys_existInXmlLayout() {
+        final List<String> niks = ToggleDaltonizerPreferenceFragment.SEARCH_INDEX_DATA_PROVIDER
+                .getNonIndexableKeys(mContext);
+        final List<String> keys =
+                XmlTestUtils.getKeysFromPreferenceXml(mContext,
+                        R.xml.accessibility_daltonizer_settings);
+
+        assertThat(keys).containsAtLeastElementsIn(niks);
+    }
+
     private static PopupWindow getLatestPopupWindow() {
         final ShadowApplication shadowApplication =
                 Shadow.extract(ApplicationProvider.getApplicationContext());