| /* |
| * 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 com.android.documentsui.testing; |
| |
| import static junit.framework.Assert.assertFalse; |
| import static junit.framework.Assert.assertTrue; |
| |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.os.SystemClock; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.Delayed; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.ScheduledExecutorService; |
| import java.util.concurrent.ScheduledFuture; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.TimeoutException; |
| |
| public class TestScheduledExecutorService implements ScheduledExecutorService { |
| |
| private List<TestFuture> scheduled = new ArrayList<>(); |
| private boolean shutdown; |
| |
| @Override |
| public void shutdown() { |
| this.shutdown = true; |
| } |
| |
| @Override |
| public List<Runnable> shutdownNow() { |
| this.shutdown = true; |
| return Collections.emptyList(); |
| } |
| |
| public void assertShutdown() { |
| assertTrue("Executor wasn't shut down.", shutdown); |
| } |
| |
| @Override |
| public boolean isShutdown() { |
| return shutdown; |
| } |
| |
| @Override |
| public boolean isTerminated() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public boolean awaitTermination(long timeout, TimeUnit unit) throws InterruptedException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public <T> Future<T> submit(Callable<T> task) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public <T> Future<T> submit(Runnable task, T result) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public Future<?> submit(Runnable task) { |
| return schedule(task, 0, TimeUnit.MILLISECONDS); |
| } |
| |
| @Override |
| public <T> List<Future<T>> invokeAll(Collection<? extends Callable<T>> tasks) |
| throws InterruptedException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public <T> List<Future<T>> invokeAll(Collection<? extends Callable<T>> tasks, long timeout, |
| TimeUnit unit) throws InterruptedException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public <T> T invokeAny(Collection<? extends Callable<T>> tasks) |
| throws InterruptedException, ExecutionException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public <T> T invokeAny(Collection<? extends Callable<T>> tasks, long timeout, TimeUnit unit) |
| throws InterruptedException, ExecutionException, TimeoutException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public void execute(Runnable command) { |
| schedule(command, 0, TimeUnit.MILLISECONDS); |
| } |
| |
| @Override |
| public ScheduledFuture<?> schedule(Runnable command, long delay, TimeUnit unit) { |
| TestFuture future = new TestFuture(command, delay, unit); |
| scheduled.add(future); |
| return future; |
| } |
| |
| @Override |
| public <V> ScheduledFuture<V> schedule(Callable<V> callable, long delay, TimeUnit unit) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public ScheduledFuture<?> scheduleAtFixedRate(Runnable command, long initialDelay, long period, |
| TimeUnit unit) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public ScheduledFuture<?> scheduleWithFixedDelay(Runnable command, long initialDelay, |
| long delay, TimeUnit unit) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public void runAll() { |
| while (!scheduled.isEmpty()) { |
| TestFuture future = scheduled.remove(scheduled.size() - 1); |
| future.runnable.run(); |
| } |
| } |
| |
| public void run(int taskIndex) { |
| scheduled.get(taskIndex).runnable.run(); |
| |
| scheduled.remove(taskIndex); |
| } |
| |
| public void assertAlive() { |
| assertFalse(isShutdown()); |
| } |
| |
| public void waitForTasks(long millisTimeout) throws Exception { |
| millisTimeout = (millisTimeout > 0) ? millisTimeout : Long.MAX_VALUE; |
| |
| final long startTime = SystemClock.uptimeMillis(); |
| |
| // We need to wait on all AsyncTasks to finish AND to post results back. |
| // *** Results are posted on main thread ***, but tests run in their own |
| // thread. So even with our test executor we still have races. |
| // |
| // To work around this issue post our own runnable to the main thread |
| // which we presume will be the *last* runnable (after any from AsyncTasks) |
| // and then wait for our runnable to be called. |
| while (!scheduled.isEmpty() && millisTimeout > 0) { |
| CountDownLatch latch = new CountDownLatch(1); |
| runAll(); |
| new Handler(Looper.getMainLooper()).post(latch::countDown); |
| latch.await(millisTimeout, TimeUnit.MILLISECONDS); |
| |
| millisTimeout -= (SystemClock.uptimeMillis() - startTime); |
| } |
| } |
| |
| static class TestFuture implements ScheduledFuture<Void> { |
| |
| final Runnable runnable; |
| final long delay; |
| final TimeUnit unit; |
| |
| public TestFuture(Runnable runnable, long delay, TimeUnit unit) { |
| this.runnable = runnable; |
| this.delay = delay; |
| this.unit = unit; |
| } |
| |
| @Override |
| public long getDelay(TimeUnit unit) { |
| return 0; |
| } |
| |
| @Override |
| public int compareTo(Delayed arg0) { |
| return 0; |
| } |
| |
| @Override |
| public boolean cancel(boolean mayInterruptIfRunning) { |
| return false; |
| } |
| |
| @Override |
| public boolean isCancelled() { |
| return false; |
| } |
| |
| @Override |
| public boolean isDone() { |
| return false; |
| } |
| |
| @Override |
| public Void get() throws InterruptedException, ExecutionException { |
| return null; |
| } |
| |
| @Override |
| public Void get(long timeout, TimeUnit unit) |
| throws InterruptedException, ExecutionException, TimeoutException { |
| return null; |
| } |
| } |
| } |