1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package androidx.wear.widget.util; 18 19 import android.content.Context; 20 import android.os.PowerManager; 21 import android.os.PowerManager.WakeLock; 22 import android.support.test.InstrumentationRegistry; 23 24 import org.junit.rules.TestRule; 25 import org.junit.runner.Description; 26 import org.junit.runners.model.Statement; 27 28 /** 29 * Rule which holds a wake lock for the duration of the test. 30 */ 31 public class WakeLockRule implements TestRule { 32 @SuppressWarnings("deprecation") 33 private static final int WAKELOCK_FLAGS = 34 PowerManager.FULL_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP; 35 36 @Override 37 public Statement apply(final Statement statement, Description description) { 38 return new Statement() { 39 @Override 40 public void evaluate() throws Throwable { 41 WakeLock wakeLock = createWakeLock(); 42 wakeLock.acquire(); 43 try { 44 statement.evaluate(); 45 } finally { 46 wakeLock.release(); 47 } 48 } 49 }; 50 } 51 52 private WakeLock createWakeLock() { 53 Context context = InstrumentationRegistry.getTargetContext(); 54 PowerManager power = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 55 return power.newWakeLock(WAKELOCK_FLAGS, context.getPackageName()); 56 } 57 } 58
