Add a controller and renderer for Slices.

Many contextual cards will be built as slices, so we need a controller
and a renderer for them.

Change-Id: I3816db09ba0181399810652fb18fbe11ce273267
Fixes: 115709730
Test: robotests

tests/robotests/src/com/android/settings/homepage/slices/SliceContextualCardRendererTest.java

@@ -0,0 +1,102 @@
+/*
+ * 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.homepage.slices;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.spy;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+
+import androidx.lifecycle.LifecycleOwner;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.android.settings.homepage.ContextualCard;
+import com.android.settings.homepage.PersonalSettingsFragment;
+import com.android.settings.testutils.SettingsRobolectricTestRunner;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+public class SliceContextualCardRendererTest {
+
+    private Context mContext;
+    private SliceContextualCardRenderer mRenderer;
+    private LifecycleOwner mLifecycleOwner;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mContext = RuntimeEnvironment.application;
+        mLifecycleOwner = new PersonalSettingsFragment();
+        mRenderer = new SliceContextualCardRenderer(mContext, mLifecycleOwner);
+    }
+
+    @Test
+    public void bindView_invalidScheme_sliceShouldBeNull() {
+        final String sliceUri = "contet://com.android.settings.slices/action/flashlight";
+        RecyclerView.ViewHolder viewHolder = getSliceViewHolder();
+
+        mRenderer.bindView(viewHolder, buildContextualCard(sliceUri));
+
+        assertThat(
+                ((SliceContextualCardRenderer.SliceViewHolder) viewHolder).sliceView.getSlice())
+                .isNull();
+    }
+
+    @Test
+    public void bindView_newSliceLiveData_shouldAddDataToMap() {
+        final String sliceUri = "content://com.android.settings.slices/action/flashlight";
+
+        mRenderer.bindView(getSliceViewHolder(), buildContextualCard(sliceUri));
+
+        assertThat(mRenderer.mSliceLiveDataMap.size()).isEqualTo(1);
+    }
+
+    @Test
+    public void bindView_sliceLiveDataShouldObserveSliceView() {
+        final String sliceUri = "content://com.android.settings.slices/action/flashlight";
+
+        mRenderer.bindView(getSliceViewHolder(), buildContextualCard(sliceUri));
+
+        assertThat(mRenderer.mSliceLiveDataMap.get(sliceUri).hasObservers()).isTrue();
+    }
+
+    private RecyclerView.ViewHolder getSliceViewHolder() {
+        final int viewType = mRenderer.getViewType();
+        final RecyclerView recyclerView = new RecyclerView(mContext);
+        recyclerView.setLayoutManager(new LinearLayoutManager(mContext));
+        final View view = LayoutInflater.from(mContext).inflate(viewType, recyclerView, false);
+        final RecyclerView.ViewHolder viewHolder = mRenderer.createViewHolder(view);
+
+        return viewHolder;
+    }
+
+    private ContextualCard buildContextualCard(String sliceUri) {
+        return new ContextualCard.Builder()
+                .setName("test_name")
+                .setSliceUri(sliceUri)
+                .build();
+    }
+}

tests/robotests/src/com/android/settings/testutils/SettingsRobolectricTestRunner.java

@@ -91,6 +91,8 @@ public class SettingsRobolectricTestRunner extends RobolectricTestRunner {
                 Fs.fromURL(new URL("file:out/soong/.intermediates/prebuilts/sdk/current/extras/material-design-x/com.google.android.material_material-nodeps/android_common/aar/res/")), null));
             paths.add(new ResourcePath(null,
                 Fs.fromURL(new URL("file:out/soong/.intermediates/prebuilts/sdk/current/androidx/androidx.cardview_cardview-nodeps/android_common/aar/res")), null));
+            paths.add(new ResourcePath(null,
+                Fs.fromURL(new URL("file:out/soong/.intermediates/prebuilts/sdk/current/androidx/androidx.slice_slice-view-nodeps/android_common/aar/res")), null));
         } catch (MalformedURLException e) {
             throw new RuntimeException("SettingsRobolectricTestRunner failure", e);
         }