Add search index provider for bt page

1. Implement the search index provider for
ConnectedDeviceDashboardFragment.
2. Since in SEARCH_INDEX_DATA_PROVIDER fragment is null,
so we need to pass in context to all components
instead of getting it from fragment.
3. Update test for it as well as creating new shadow.

Change-Id: If0aa67d5b6ca207c6b728c8355581bf414577091
Fixes: 69333961
Test: RunSettingsRoboTests

tests/robotests/src/com/android/settings/connecteddevice/ConnectedDeviceDashboardFragmentTest.java

@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2018 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.connecteddevice;
+
+import static com.android.settings.connecteddevice.ConnectedDeviceDashboardFragment
+        .KEY_CONNECTED_DEVICES;
+import static com.android.settings.connecteddevice.ConnectedDeviceDashboardFragment
+        .KEY_SAVED_DEVICES;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.spy;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.provider.SearchIndexableResource;
+
+import com.android.settings.R;
+import com.android.settings.testutils.SettingsRobolectricTestRunner;
+import com.android.settings.testutils.shadow.ShadowBluetoothPan;
+import com.android.settings.testutils.shadow.ShadowConnectivityManager;
+import com.android.settings.testutils.shadow.ShadowUserManager;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
+
+import java.util.List;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+@Config(shadows = {ShadowBluetoothPan.class, ShadowUserManager.class,
+        ShadowConnectivityManager.class})
+public class ConnectedDeviceDashboardFragmentTest {
+    @Mock
+    private PackageManager mPackageManager;
+    private Context mContext;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+
+        mContext = spy(RuntimeEnvironment.application);
+        doReturn(mPackageManager).when(mContext).getPackageManager();
+        doReturn(true).when(mPackageManager).hasSystemFeature(PackageManager.FEATURE_BLUETOOTH);
+    }
+
+    @Test
+    public void testSearchIndexProvider_shouldIndexResource() {
+        final List<SearchIndexableResource> indexRes =
+                ConnectedDeviceDashboardFragment.SEARCH_INDEX_DATA_PROVIDER
+                        .getXmlResourcesToIndex(mContext, true /* enabled */);
+
+        assertThat(indexRes).isNotNull();
+        assertThat(indexRes.get(0).xmlResId).isEqualTo(R.xml.connected_devices);
+    }
+
+    @Test
+    public void testNonIndexableKeys_existInXmlLayout() {
+        final List<String> niks = ConnectedDeviceDashboardFragment.SEARCH_INDEX_DATA_PROVIDER
+                .getNonIndexableKeys(mContext);
+
+        assertThat(niks).containsExactly(KEY_CONNECTED_DEVICES, KEY_SAVED_DEVICES);
+    }
+}