| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.beam.runners.direct; |
| |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.never; |
| import static org.mockito.Mockito.verify; |
| |
| import java.util.concurrent.ExecutorService; |
| import org.apache.beam.vendor.guava.v20_0.com.google.common.util.concurrent.MoreExecutors; |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.ExpectedException; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Tests for {@link TransformExecutorServices}. */ |
| @RunWith(JUnit4.class) |
| public class TransformExecutorServicesTest { |
| @Rule public ExpectedException thrown = ExpectedException.none(); |
| |
| private ExecutorService executorService; |
| |
| @Before |
| public void setup() { |
| executorService = MoreExecutors.newDirectExecutorService(); |
| } |
| |
| @Test |
| public void parallelScheduleMultipleSchedulesBothImmediately() { |
| @SuppressWarnings("unchecked") |
| DirectTransformExecutor<Object> first = mock(DirectTransformExecutor.class); |
| @SuppressWarnings("unchecked") |
| DirectTransformExecutor<Object> second = mock(DirectTransformExecutor.class); |
| |
| TransformExecutorService parallel = TransformExecutorServices.parallel(executorService); |
| parallel.schedule(first); |
| parallel.schedule(second); |
| |
| verify(first).run(); |
| verify(second).run(); |
| |
| parallel.complete(first); |
| parallel.complete(second); |
| } |
| |
| @Test |
| public void parallelRejectedStillActiveThrows() { |
| @SuppressWarnings("unchecked") |
| DirectTransformExecutor<Object> first = mock(DirectTransformExecutor.class); |
| |
| TransformExecutorService parallel = TransformExecutorServices.parallel(executorService); |
| executorService.shutdown(); |
| thrown.expect(IllegalStateException.class); |
| thrown.expectMessage("still active"); |
| parallel.schedule(first); |
| } |
| |
| @Test |
| public void parallelRejectedShutdownSucceeds() { |
| @SuppressWarnings("unchecked") |
| DirectTransformExecutor<Object> first = mock(DirectTransformExecutor.class); |
| |
| TransformExecutorService parallel = TransformExecutorServices.parallel(executorService); |
| executorService.shutdown(); |
| parallel.shutdown(); |
| parallel.schedule(first); |
| } |
| |
| @Test |
| public void serialScheduleTwoWaitsForFirstToComplete() { |
| @SuppressWarnings("unchecked") |
| DirectTransformExecutor<Object> first = mock(DirectTransformExecutor.class); |
| @SuppressWarnings("unchecked") |
| DirectTransformExecutor<Object> second = mock(DirectTransformExecutor.class); |
| |
| TransformExecutorService serial = TransformExecutorServices.serial(executorService); |
| serial.schedule(first); |
| verify(first).run(); |
| |
| serial.schedule(second); |
| verify(second, never()).run(); |
| |
| serial.complete(first); |
| verify(second).run(); |
| |
| serial.complete(second); |
| } |
| |
| @Test |
| public void serialCompleteNotExecutingTaskThrows() { |
| @SuppressWarnings("unchecked") |
| DirectTransformExecutor<Object> first = mock(DirectTransformExecutor.class); |
| @SuppressWarnings("unchecked") |
| DirectTransformExecutor<Object> second = mock(DirectTransformExecutor.class); |
| |
| TransformExecutorService serial = TransformExecutorServices.serial(executorService); |
| serial.schedule(first); |
| thrown.expect(IllegalStateException.class); |
| thrown.expectMessage("unexpected currently executing"); |
| |
| serial.complete(second); |
| } |
| |
| /** |
| * Tests that a Serial {@link TransformExecutorService} does not schedule follow up work if the |
| * executor is shut down when the initial work completes. |
| */ |
| @Test |
| public void serialShutdownCompleteActive() { |
| @SuppressWarnings("unchecked") |
| DirectTransformExecutor<Object> first = mock(DirectTransformExecutor.class); |
| @SuppressWarnings("unchecked") |
| DirectTransformExecutor<Object> second = mock(DirectTransformExecutor.class); |
| |
| TransformExecutorService serial = TransformExecutorServices.serial(executorService); |
| serial.schedule(first); |
| verify(first).run(); |
| |
| serial.schedule(second); |
| verify(second, never()).run(); |
| |
| serial.shutdown(); |
| serial.complete(first); |
| verify(second, never()).run(); |
| } |
| } |