| /* |
| * 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.fnexecution.environment; |
| |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.hamcrest.Matchers.containsString; |
| import static org.hamcrest.Matchers.instanceOf; |
| import static org.hamcrest.Matchers.is; |
| import static org.hamcrest.Matchers.lessThan; |
| |
| import java.io.IOException; |
| import java.util.concurrent.TimeUnit; |
| import org.apache.beam.runners.fnexecution.environment.testing.NeedsDocker; |
| import org.apache.beam.vendor.guava.v20_0.com.google.common.base.Stopwatch; |
| import org.apache.beam.vendor.guava.v20_0.com.google.common.collect.ImmutableList; |
| import org.junit.Assert; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| import org.junit.rules.ExpectedException; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Tests for {@link DockerCommand}. */ |
| @Category(NeedsDocker.class) |
| @RunWith(JUnit4.class) |
| public class DockerCommandTest { |
| |
| @Rule public ExpectedException thrown = ExpectedException.none(); |
| |
| @Test |
| public void helloWorld() throws Exception { |
| DockerCommand docker = DockerCommand.getDefault(); |
| String container = docker.runImage("hello-world", ImmutableList.of(), ImmutableList.of()); |
| System.out.printf("Started container: %s%n", container); |
| } |
| |
| @Test |
| public void killContainer() throws Exception { |
| DockerCommand docker = DockerCommand.getDefault(); |
| String container = |
| docker.runImage( |
| "debian", ImmutableList.of(), ImmutableList.of("/bin/bash", "-c", "sleep 60")); |
| Stopwatch stopwatch = Stopwatch.createStarted(); |
| assertThat("Container should be running.", docker.isContainerRunning(container), is(true)); |
| docker.killContainer(container); |
| long elapsedSec = stopwatch.elapsed(TimeUnit.SECONDS); |
| assertThat( |
| "Container termination should complete before image self-exits", |
| elapsedSec, |
| is(lessThan(60L))); |
| assertThat("Container should be terminated.", docker.isContainerRunning(container), is(false)); |
| } |
| |
| @Test |
| public void capturesErrorOutput() throws Exception { |
| DockerCommand docker = DockerCommand.getDefault(); |
| thrown.expect(instanceOf(IOException.class)); |
| thrown.expectMessage(containsString("Error response from daemon")); |
| String badImageName = "this-image-should-hopefully-never-exist"; |
| String container = docker.runImage(badImageName, ImmutableList.of(), ImmutableList.of()); |
| // We should never reach this line, but clean up in case we do. |
| docker.killContainer(container); |
| Assert.fail(String.format("Container creation for %s should have failed", badImageName)); |
| } |
| } |