Index Data to build Slices in Settings

The indexing is done by taking the indexable fragments from
search, grabbing their XML via SearchIndexableResources, and
then looking for controllers defined in preferences.

For each controller found, we take the combination of the
fragment providing the XML and the Preference info to create
an indexable row.

Buiding a Slice will be handled in a subsquent CL, but a
prototype can be found here: ag/3324435

Test: robotests
Bug: 67996923
Change-Id: I48668618079bcc3da55ab77b7323ee8e467073af

tests/robotests/src/com/android/settings/slices/SlicesIndexerTest.java

@@ -0,0 +1,152 @@
+/*
+ * 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.slices;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.spy;
+
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+import android.net.Uri;
+
+import com.android.settings.TestConfig;
+import com.android.settings.slices.SlicesDatabaseHelper.IndexColumns;
+import com.android.settings.testutils.DatabaseTestUtils;
+import com.android.settings.testutils.SettingsRobolectricTestRunner;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Locale;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class SlicesIndexerTest {
+
+    private final String[] KEYS = new String[]{"key1", "key2", "key3"};
+    private final String[] TITLES = new String[]{"title1", "title2", "title3"};
+    private final String SUMMARY = "subtitle";
+    private final String SCREEN_TITLE = "screen title";
+    private final String FRAGMENT_NAME = "fragment name";
+    private final int ICON = 1234; // I declare a thumb war
+    private final Uri URI = Uri.parse("content://com.android.settings.slices/test");
+    private final String PREF_CONTROLLER = "com.android.settings.slices.tester";
+
+    private Context mContext;
+
+    private SlicesIndexer mManager;
+
+    private SQLiteDatabase mDb;
+
+    @Before
+    public void setUp() {
+        mContext = RuntimeEnvironment.application;
+        mManager = spy(new SlicesIndexer(mContext));
+        mDb = SlicesDatabaseHelper.getInstance(mContext).getWritableDatabase();
+    }
+
+    @After
+    public void cleanUp() {
+        DatabaseTestUtils.clearDb(mContext);
+    }
+
+    @Test
+    public void testAlreadyIndexed_doesNotIndexAgain() {
+        String newKey = "newKey";
+        String newTitle = "newTitle";
+        SlicesDatabaseHelper.getInstance(mContext).setIndexedState();
+        Locale.setDefault(new Locale("ca"));
+        insertSpecialCase(newKey, newTitle);
+
+        // Attempt indexing - should not do anything.
+        mManager.run();
+
+        Cursor cursor = mDb.rawQuery("SELECT * FROM slices_index", null);
+        cursor.moveToFirst();
+        assertThat(cursor.getCount()).isEqualTo(1);
+        assertThat(cursor.getString(cursor.getColumnIndex(IndexColumns.KEY))).isEqualTo(newKey);
+        assertThat(cursor.getString(cursor.getColumnIndex(IndexColumns.TITLE))).isEqualTo(newTitle);
+    }
+
+    @Test
+    public void testInsertSliceData_indexedStateSet() {
+        SlicesDatabaseHelper helper = SlicesDatabaseHelper.getInstance(mContext);
+        helper.setIndexedState();
+        doReturn(new ArrayList<SliceData>()).when(mManager).getSliceData();
+
+        mManager.run();
+
+        assertThat(helper.isSliceDataIndexed()).isTrue();
+    }
+
+    @Test
+    public void testInsertSliceData_mockDataInserted() {
+        List<SliceData> sliceData = getDummyIndexableData();
+        doReturn(sliceData).when(mManager).getSliceData();
+
+        mManager.run();
+
+        Cursor cursor = mDb.rawQuery("SELECT * FROM slices_index", null);
+        assertThat(cursor.getCount()).isEqualTo(sliceData.size());
+
+        cursor.moveToFirst();
+        for (int i = 0; i < sliceData.size(); i++) {
+            assertThat(cursor.getString(cursor.getColumnIndex(IndexColumns.KEY))).isEqualTo(
+                    KEYS[i]);
+            assertThat(cursor.getString(cursor.getColumnIndex(IndexColumns.TITLE))).isEqualTo(
+                    TITLES[i]);
+            cursor.moveToNext();
+        }
+    }
+
+    private void insertSpecialCase(String key, String title) {
+        ContentValues values = new ContentValues();
+        values.put(IndexColumns.KEY, key);
+        values.put(IndexColumns.TITLE, title);
+
+        mDb.replaceOrThrow(SlicesDatabaseHelper.Tables.TABLE_SLICES_INDEX, null, values);
+    }
+
+    private List<SliceData> getDummyIndexableData() {
+        List<SliceData> sliceData = new ArrayList<>();
+        SliceData.Builder builder = new SliceData.Builder();
+        builder.setSummary(SUMMARY)
+                .setScreenTitle(SCREEN_TITLE)
+                .setFragmentName(FRAGMENT_NAME)
+                .setIcon(ICON)
+                .setUri(URI)
+                .setPreferenceControllerClassName(PREF_CONTROLLER);
+
+        for (int i = 0; i < KEYS.length; i++) {
+            builder.setKey(KEYS[i])
+                    .setTitle(TITLES[i]);
+            sliceData.add(builder.build());
+        }
+
+        return sliceData;
+    }
+}