Make a few custom slices implement CustomSliceable.

Bug: 80263568
Test: robotests, slice-browser
Change-Id: Id809a347d77448917154c2d1144fd2517e70829a

tests/robotests/src/com/android/settings/flashlight/FlashlightSliceTest.java

@@ -0,0 +1,70 @@
+/*
+ * 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.flashlight;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import android.content.Context;
+import android.provider.Settings;
+
+import androidx.slice.Slice;
+import androidx.slice.SliceItem;
+import androidx.slice.SliceMetadata;
+import androidx.slice.SliceProvider;
+import androidx.slice.core.SliceAction;
+import androidx.slice.widget.SliceLiveData;
+
+import com.android.settings.R;
+import com.android.settings.testutils.SettingsRobolectricTestRunner;
+import com.android.settings.testutils.SliceTester;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RuntimeEnvironment;
+
+import java.util.List;
+
+
+@RunWith(SettingsRobolectricTestRunner.class)
+public class FlashlightSliceTest {
+
+    private Context mContext;
+
+    @Before
+    public void setUp() {
+        mContext = RuntimeEnvironment.application;
+
+        // Set-up specs for SliceMetadata.
+        SliceProvider.setSpecs(SliceLiveData.SUPPORTED_SPECS);
+    }
+
+    @Test
+    public void getFlashlightSlice_correctData() {
+        Settings.Secure.putInt(
+                mContext.getContentResolver(), Settings.Secure.FLASHLIGHT_AVAILABLE, 1);
+        final Slice slice = new FlashlightSlice(mContext).getSlice();
+        final SliceMetadata metadata = SliceMetadata.from(mContext, slice);
+
+        final List<SliceAction> toggles = metadata.getToggles();
+        assertThat(toggles).hasSize(1);
+
+        final List<SliceItem> sliceItems = slice.getItems();
+        SliceTester.assertTitle(sliceItems, mContext.getString(R.string.power_flashlight));
+    }
+}