| /* |
| * Copyright (C) 2016 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 android.support.wear.widget.util; |
| |
| import android.content.Context; |
| import android.os.PowerManager; |
| import android.os.PowerManager.WakeLock; |
| import android.support.test.InstrumentationRegistry; |
| |
| import org.junit.rules.TestRule; |
| import org.junit.runner.Description; |
| import org.junit.runners.model.Statement; |
| |
| /** |
| * Rule which holds a wake lock for the duration of the test. |
| */ |
| public class WakeLockRule implements TestRule { |
| @SuppressWarnings("deprecation") |
| private static final int WAKELOCK_FLAGS = |
| PowerManager.FULL_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP; |
| |
| @Override |
| public Statement apply(final Statement statement, Description description) { |
| return new Statement() { |
| @Override |
| public void evaluate() throws Throwable { |
| WakeLock wakeLock = createWakeLock(); |
| wakeLock.acquire(); |
| try { |
| statement.evaluate(); |
| } finally { |
| wakeLock.release(); |
| } |
| } |
| }; |
| } |
| |
| private WakeLock createWakeLock() { |
| Context context = InstrumentationRegistry.getTargetContext(); |
| PowerManager power = (PowerManager) context.getSystemService(Context.POWER_SERVICE); |
| return power.newWakeLock(WAKELOCK_FLAGS, context.getPackageName()); |
| } |
| } |