YARN-7691. Add Unit Tests for ContainersLauncher. (Sampada Dehankar via asuresh)
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Arun Suresh
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/* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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* <p>
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* http://www.apache.org/licenses/LICENSE-2.0
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* <p>
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
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import org.apache.hadoop.yarn.api.records.ApplicationId;
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import org.apache.hadoop.yarn.api.records.ContainerId;
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import org.apache.hadoop.yarn.api.records.SignalContainerCommand;
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import org.apache.hadoop.yarn.event.AsyncDispatcher;
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import org.apache.hadoop.yarn.server.nodemanager.ContainerExecutor;
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import org.apache.hadoop.yarn.server.nodemanager.LocalDirsHandlerService;
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import org.apache.hadoop.yarn.server.nodemanager.NodeManager;
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import org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl;
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import org.apache.hadoop.yarn.server.nodemanager.containermanager.application.Application;
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import org.apache.hadoop.yarn.server.nodemanager.containermanager.application.ApplicationImpl;
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import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerImpl;
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import org.junit.Before;
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import org.junit.Test;
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import org.mockito.InjectMocks;
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import org.mockito.Mock;
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import org.mockito.Mockito;
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import org.mockito.MockitoAnnotations;
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import org.mockito.internal.util.reflection.Whitebox;
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import java.io.IOException;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.concurrent.ConcurrentMap;
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import java.util.concurrent.ExecutorService;
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import static org.junit.Assert.assertEquals;
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import static org.mockito.Mockito.*;
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/**
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* Tests to verify all the Container's Launcher Events in
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* {@link ContainersLauncher} are handled as expected.
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*/
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public class TestContainersLauncher {
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@Mock
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private ApplicationImpl app1;
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@Mock
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private ContainerImpl container;
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@Mock
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private ApplicationId appId;
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@Mock
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private ApplicationAttemptId appAttemptId;
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@Mock
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private ContainerId containerId;
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@Mock
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private ContainersLauncherEvent event;
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@Mock
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private NodeManager.NMContext context;
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@Mock
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private AsyncDispatcher dispatcher;
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@Mock
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private ContainerExecutor exec;
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@Mock
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private LocalDirsHandlerService dirsHandler;
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@Mock
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private ContainerManagerImpl containerManager;
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@Mock
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private ExecutorService containerLauncher;
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@Mock
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private Configuration conf;
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@Mock
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private ContainerLaunch containerLaunch;
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@InjectMocks
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private ContainersLauncher tempContainersLauncher = new ContainersLauncher(
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context, dispatcher, exec, dirsHandler, containerManager);
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private ContainersLauncher spy;
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@Before
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public void setup() throws IllegalArgumentException, IllegalAccessException {
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MockitoAnnotations.initMocks(this);
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ConcurrentMap<ApplicationId, Application> applications =
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new ConcurrentHashMap<>();
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applications.put(appId, app1);
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spy = spy(tempContainersLauncher);
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conf = doReturn(conf).when(spy).getConfig();
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when(event.getContainer()).thenReturn(container);
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when(container.getContainerId()).thenReturn(containerId);
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when(containerId.getApplicationAttemptId()).thenReturn(appAttemptId);
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when(containerId.getApplicationAttemptId().getApplicationId())
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.thenReturn(appId);
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when(context.getApplications()).thenReturn(applications);
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}
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@SuppressWarnings("unchecked")
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@Test
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public void testLaunchContainerEvent()
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throws IllegalArgumentException, IllegalAccessException {
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Map<ContainerId, ContainerLaunch> dummyMap =
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(Map<ContainerId, ContainerLaunch>) Whitebox.getInternalState(spy,
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"running");
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when(event.getType())
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.thenReturn(ContainersLauncherEventType.LAUNCH_CONTAINER);
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assertEquals(0, dummyMap.size());
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spy.handle(event);
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assertEquals(1, dummyMap.size());
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Mockito.verify(containerLauncher, Mockito.times(1))
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.submit(Mockito.any(ContainerLaunch.class));
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}
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@SuppressWarnings("unchecked")
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@Test
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public void testRelaunchContainerEvent()
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throws IllegalArgumentException, IllegalAccessException {
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Map<ContainerId, ContainerLaunch> dummyMap =
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(Map<ContainerId, ContainerLaunch>) Whitebox.getInternalState(spy,
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"running");
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when(event.getType())
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.thenReturn(ContainersLauncherEventType.RELAUNCH_CONTAINER);
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assertEquals(0, dummyMap.size());
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spy.handle(event);
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assertEquals(1, dummyMap.size());
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Mockito.verify(containerLauncher, Mockito.times(1))
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.submit(Mockito.any(ContainerRelaunch.class));
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for (ContainerId cid : dummyMap.keySet()) {
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Object o = dummyMap.get(cid);
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assertEquals(true, (o instanceof ContainerRelaunch));
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}
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}
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@SuppressWarnings("unchecked")
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@Test
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public void testRecoverContainerEvent()
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throws IllegalArgumentException, IllegalAccessException {
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Map<ContainerId, ContainerLaunch> dummyMap =
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(Map<ContainerId, ContainerLaunch>) Whitebox.getInternalState(spy,
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"running");
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when(event.getType())
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.thenReturn(ContainersLauncherEventType.RECOVER_CONTAINER);
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assertEquals(0, dummyMap.size());
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spy.handle(event);
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assertEquals(1, dummyMap.size());
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Mockito.verify(containerLauncher, Mockito.times(1))
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.submit(Mockito.any(RecoveredContainerLaunch.class));
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for (ContainerId cid : dummyMap.keySet()) {
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Object o = dummyMap.get(cid);
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assertEquals(true, (o instanceof RecoveredContainerLaunch));
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}
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}
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@Test
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public void testRecoverPausedContainerEvent()
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throws IllegalArgumentException, IllegalAccessException {
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when(event.getType())
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.thenReturn(ContainersLauncherEventType.RECOVER_PAUSED_CONTAINER);
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spy.handle(event);
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Mockito.verify(containerLauncher, Mockito.times(1))
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.submit(Mockito.any(RecoverPausedContainerLaunch.class));
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}
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@Test
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public void testCleanupContainerEvent()
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throws IllegalArgumentException, IllegalAccessException, IOException {
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Map<ContainerId, ContainerLaunch> dummyMap = Collections
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.synchronizedMap(new HashMap<ContainerId, ContainerLaunch>());
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dummyMap.put(containerId, containerLaunch);
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Whitebox.setInternalState(spy, "running", dummyMap);
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when(event.getType())
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.thenReturn(ContainersLauncherEventType.CLEANUP_CONTAINER);
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doNothing().when(containerLaunch).cleanupContainer();
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spy.handle(event);
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assertEquals(0, dummyMap.size());
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Mockito.verify(containerLaunch, Mockito.times(1)).cleanupContainer();
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}
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@Test
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public void testCleanupContainerForReINITEvent()
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throws IllegalArgumentException, IllegalAccessException, IOException {
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Map<ContainerId, ContainerLaunch> dummyMap = Collections
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.synchronizedMap(new HashMap<ContainerId, ContainerLaunch>());
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dummyMap.put(containerId, containerLaunch);
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Whitebox.setInternalState(spy, "running", dummyMap);
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when(event.getType())
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.thenReturn(ContainersLauncherEventType.CLEANUP_CONTAINER_FOR_REINIT);
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doNothing().when(containerLaunch).cleanupContainer();
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spy.handle(event);
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assertEquals(0, dummyMap.size());
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Mockito.verify(containerLaunch, Mockito.times(1)).cleanupContainer();
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}
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@Test
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public void testSignalContainerEvent()
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throws IllegalArgumentException, IllegalAccessException, IOException {
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Map<ContainerId, ContainerLaunch> dummyMap = Collections
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.synchronizedMap(new HashMap<ContainerId, ContainerLaunch>());
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dummyMap.put(containerId, containerLaunch);
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SignalContainersLauncherEvent dummyEvent =
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mock(SignalContainersLauncherEvent.class);
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when(dummyEvent.getContainer()).thenReturn(container);
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when(container.getContainerId()).thenReturn(containerId);
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when(containerId.getApplicationAttemptId()).thenReturn(appAttemptId);
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when(containerId.getApplicationAttemptId().getApplicationId())
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.thenReturn(appId);
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Whitebox.setInternalState(spy, "running", dummyMap);
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when(dummyEvent.getType())
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.thenReturn(ContainersLauncherEventType.SIGNAL_CONTAINER);
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when(dummyEvent.getCommand())
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.thenReturn(SignalContainerCommand.GRACEFUL_SHUTDOWN);
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doNothing().when(containerLaunch)
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.signalContainer(SignalContainerCommand.GRACEFUL_SHUTDOWN);
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spy.handle(dummyEvent);
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assertEquals(1, dummyMap.size());
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Mockito.verify(containerLaunch, Mockito.times(1))
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.signalContainer(SignalContainerCommand.GRACEFUL_SHUTDOWN);
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}
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@Test
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public void testPauseContainerEvent()
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throws IllegalArgumentException, IllegalAccessException, IOException {
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Map<ContainerId, ContainerLaunch> dummyMap = Collections
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.synchronizedMap(new HashMap<ContainerId, ContainerLaunch>());
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dummyMap.put(containerId, containerLaunch);
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Whitebox.setInternalState(spy, "running", dummyMap);
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when(event.getType())
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.thenReturn(ContainersLauncherEventType.PAUSE_CONTAINER);
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doNothing().when(containerLaunch).pauseContainer();
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spy.handle(event);
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assertEquals(1, dummyMap.size());
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Mockito.verify(containerLaunch, Mockito.times(1)).pauseContainer();
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}
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@Test
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public void testResumeContainerEvent()
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throws IllegalArgumentException, IllegalAccessException, IOException {
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Map<ContainerId, ContainerLaunch> dummyMap = Collections
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.synchronizedMap(new HashMap<ContainerId, ContainerLaunch>());
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dummyMap.put(containerId, containerLaunch);
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Whitebox.setInternalState(spy, "running", dummyMap);
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when(event.getType())
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.thenReturn(ContainersLauncherEventType.RESUME_CONTAINER);
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doNothing().when(containerLaunch).resumeContainer();
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spy.handle(event);
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assertEquals(1, dummyMap.size());
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Mockito.verify(containerLaunch, Mockito.times(1)).resumeContainer();
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}
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}
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