| /* |
| * Copyright (C) 2020 The Guava Authors |
| * |
| * 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.google.common.util.concurrent; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| |
| import com.google.common.util.concurrent.ForwardingListenableFuture.SimpleForwardingListenableFuture; |
| import java.time.Duration; |
| import java.util.List; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.Delayed; |
| import java.util.concurrent.TimeUnit; |
| import junit.framework.TestCase; |
| |
| /** Tests for default methods of the interface. */ |
| public class ListeningScheduledExecutorServiceTest extends TestCase { |
| |
| private Runnable recordedCommand; |
| private long recordedDelay; |
| private long recordedInterval; |
| private TimeUnit recordedTimeUnit; |
| |
| private final ListeningScheduledExecutorService executorService = new FakeExecutorService(); |
| |
| public void testScheduleRunnable() throws Exception { |
| Runnable command = () -> {}; |
| |
| ListenableScheduledFuture<?> future = executorService.schedule(command, Duration.ofSeconds(12)); |
| |
| assertThat(future.get()).isEqualTo("schedule"); |
| assertThat(recordedCommand).isSameInstanceAs(command); |
| assertThat(recordedTimeUnit).isEqualTo(TimeUnit.NANOSECONDS); |
| assertThat(Duration.ofNanos(recordedDelay)).isEqualTo(Duration.ofSeconds(12)); |
| } |
| |
| public void testScheduleCallable() throws Exception { |
| Callable<String> callable = () -> "hello"; |
| |
| ListenableScheduledFuture<String> future = |
| executorService.schedule(callable, Duration.ofMinutes(12)); |
| |
| assertThat(future.get()).isEqualTo("hello"); |
| assertThat(recordedTimeUnit).isEqualTo(TimeUnit.NANOSECONDS); |
| assertThat(Duration.ofNanos(recordedDelay)).isEqualTo(Duration.ofMinutes(12)); |
| } |
| |
| public void testScheduleAtFixedRate() throws Exception { |
| Runnable command = () -> {}; |
| |
| ListenableScheduledFuture<?> future = |
| executorService.scheduleAtFixedRate(command, Duration.ofDays(2), Duration.ofHours(4)); |
| |
| assertThat(future.get()).isEqualTo("scheduleAtFixedRate"); |
| assertThat(recordedCommand).isSameInstanceAs(command); |
| assertThat(recordedTimeUnit).isEqualTo(TimeUnit.NANOSECONDS); |
| assertThat(Duration.ofNanos(recordedDelay)).isEqualTo(Duration.ofDays(2)); |
| assertThat(Duration.ofNanos(recordedInterval)).isEqualTo(Duration.ofHours(4)); |
| } |
| |
| public void testScheduleWithFixedDelay() throws Exception { |
| Runnable command = () -> {}; |
| |
| ListenableScheduledFuture<?> future = |
| executorService.scheduleWithFixedDelay(command, Duration.ofDays(8), Duration.ofHours(16)); |
| |
| assertThat(future.get()).isEqualTo("scheduleWithFixedDelay"); |
| assertThat(recordedCommand).isSameInstanceAs(command); |
| assertThat(recordedTimeUnit).isEqualTo(TimeUnit.NANOSECONDS); |
| assertThat(Duration.ofNanos(recordedDelay)).isEqualTo(Duration.ofDays(8)); |
| assertThat(Duration.ofNanos(recordedInterval)).isEqualTo(Duration.ofHours(16)); |
| } |
| |
| private class FakeExecutorService extends AbstractListeningExecutorService |
| implements ListeningScheduledExecutorService { |
| @Override |
| public ListenableScheduledFuture<?> schedule(Runnable command, long delay, TimeUnit unit) { |
| recordedCommand = command; |
| recordedDelay = delay; |
| recordedTimeUnit = unit; |
| return ImmediateScheduledFuture.of("schedule"); |
| } |
| |
| @Override |
| public <V> ListenableScheduledFuture<V> schedule( |
| Callable<V> callable, long delay, TimeUnit unit) { |
| recordedDelay = delay; |
| recordedTimeUnit = unit; |
| try { |
| return ImmediateScheduledFuture.of(callable.call()); |
| } catch (Exception e) { |
| return ImmediateScheduledFuture.failed(e); |
| } |
| } |
| |
| @Override |
| public ListenableScheduledFuture<?> scheduleAtFixedRate( |
| Runnable command, long initialDelay, long period, TimeUnit unit) { |
| recordedCommand = command; |
| recordedDelay = initialDelay; |
| recordedInterval = period; |
| recordedTimeUnit = unit; |
| return ImmediateScheduledFuture.of("scheduleAtFixedRate"); |
| } |
| |
| @Override |
| public ListenableScheduledFuture<?> scheduleWithFixedDelay( |
| Runnable command, long initialDelay, long delay, TimeUnit unit) { |
| recordedCommand = command; |
| recordedDelay = initialDelay; |
| recordedInterval = delay; |
| recordedTimeUnit = unit; |
| return ImmediateScheduledFuture.of("scheduleWithFixedDelay"); |
| } |
| |
| @Override |
| public void execute(Runnable runnable) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public void shutdown() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public List<Runnable> shutdownNow() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public boolean isShutdown() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public boolean isTerminated() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public boolean awaitTermination(long timeout, TimeUnit unit) { |
| throw new UnsupportedOperationException(); |
| } |
| } |
| |
| private static class ImmediateScheduledFuture<V> extends SimpleForwardingListenableFuture<V> |
| implements ListenableScheduledFuture<V> { |
| static <V> ListenableScheduledFuture<V> of(V value) { |
| return new ImmediateScheduledFuture<>(Futures.immediateFuture(value)); |
| } |
| |
| static <V> ListenableScheduledFuture<V> failed(Throwable t) { |
| return new ImmediateScheduledFuture<>(Futures.immediateFailedFuture(t)); |
| } |
| |
| ImmediateScheduledFuture(ListenableFuture<V> delegate) { |
| super(delegate); |
| } |
| |
| @Override |
| public long getDelay(TimeUnit unit) { |
| return 0; |
| } |
| |
| @Override |
| public int compareTo(Delayed other) { |
| return 0; |
| } |
| } |
| } |