/**
* 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.hadoop.yarn.server.nodemanager.containermanager.linux.resources;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.yarn.api.records.ContainerId;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container;
import org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged.PrivilegedOperation;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import java.util.List;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.times;
/**
* Tests for the cgroups disk handler implementation.
*/
public class TestCGroupsBlkioResourceHandlerImpl {
private CGroupsHandler mockCGroupsHandler;
private CGroupsBlkioResourceHandlerImpl cGroupsBlkioResourceHandlerImpl;
@Before
public void setup() {
mockCGroupsHandler = mock(CGroupsHandler.class);
cGroupsBlkioResourceHandlerImpl =
new CGroupsBlkioResourceHandlerImpl(mockCGroupsHandler);
}
@Test
public void testBootstrap() throws Exception {
Configuration conf = new YarnConfiguration();
List<PrivilegedOperation> ret =
cGroupsBlkioResourceHandlerImpl.bootstrap(conf);
verify(mockCGroupsHandler, times(1)).mountCGroupController(
CGroupsHandler.CGroupController.BLKIO);
Assert.assertNull(ret);
}
@Test
public void testPreStart() throws Exception {
String id = "container_01_01";
String path = "test-path/" + id;
ContainerId mockContainerId = mock(ContainerId.class);
when(mockContainerId.toString()).thenReturn(id);
Container mockContainer = mock(Container.class);
when(mockContainer.getContainerId()).thenReturn(mockContainerId);
when(
mockCGroupsHandler.getPathForCGroupTasks(
CGroupsHandler.CGroupController.BLKIO, id)).thenReturn(path);
List<PrivilegedOperation> ret =
cGroupsBlkioResourceHandlerImpl.preStart(mockContainer);
verify(mockCGroupsHandler, times(1)).createCGroup(
CGroupsHandler.CGroupController.BLKIO, id);
verify(mockCGroupsHandler, times(1)).updateCGroupParam(
CGroupsHandler.CGroupController.BLKIO, id,
CGroupsHandler.CGROUP_PARAM_BLKIO_WEIGHT,
CGroupsBlkioResourceHandlerImpl.DEFAULT_WEIGHT);
Assert.assertNotNull(ret);
Assert.assertEquals(1, ret.size());
PrivilegedOperation op = ret.get(0);
Assert.assertEquals(PrivilegedOperation.OperationType.ADD_PID_TO_CGROUP,
op.getOperationType());
List<String> args = op.getArguments();
Assert.assertEquals(1, args.size());
Assert.assertEquals(PrivilegedOperation.CGROUP_ARG_PREFIX + path,
args.get(0));
}
@Test
public void testReacquireContainer() throws Exception {
ContainerId containerIdMock = mock(ContainerId.class);
Assert.assertNull(cGroupsBlkioResourceHandlerImpl
.reacquireContainer(containerIdMock));
}
@Test
public void testPostComplete() throws Exception {
String id = "container_01_01";
ContainerId mockContainerId = mock(ContainerId.class);
when(mockContainerId.toString()).thenReturn(id);
Assert.assertNull(cGroupsBlkioResourceHandlerImpl
.postComplete(mockContainerId));
verify(mockCGroupsHandler, times(1)).deleteCGroup(
CGroupsHandler.CGroupController.BLKIO, id);
}
@Test
public void testTeardown() throws Exception {
Assert.assertNull(cGroupsBlkioResourceHandlerImpl.teardown());
}
}