/*
* The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
* (the "License"). You may not use this work except in compliance with the License, which is
* available at www.apache.org/licenses/LICENSE-2.0
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied, as more fully set forth in the License.
*
* See the NOTICE file distributed with this work for information regarding copyright ownership.
*/
package alluxio.client.file.policy;
import alluxio.Constants;
import alluxio.client.block.BlockWorkerInfo;
import alluxio.wire.WorkerNetAddress;
import org.junit.Assert;
import org.junit.Test;
import java.util.ArrayList;
import java.util.List;
/**
* Tests {@link SpecificHostPolicy}.
*/
public final class SpecificHostPolicyTest {
private static final int PORT = 1;
/**
* Tests that the correct worker is returned when using the policy.
*/
@Test
public void policy() {
SpecificHostPolicy policy = new SpecificHostPolicy("worker2");
List<BlockWorkerInfo> workerInfoList = new ArrayList<>();
workerInfoList.add(new BlockWorkerInfo(new WorkerNetAddress().setHost("worker1")
.setRpcPort(PORT).setDataPort(PORT).setWebPort(PORT), Constants.GB, 0));
workerInfoList.add(new BlockWorkerInfo(new WorkerNetAddress().setHost("worker2")
.setRpcPort(PORT).setDataPort(PORT).setWebPort(PORT), Constants.GB, 0));
Assert.assertEquals("worker2",
policy.getWorkerForNextBlock(workerInfoList, Constants.MB).getHost());
}
/**
* Tests that no worker is chosen when the worker specified in the policy is not part of the
* worker list.
*/
@Test
public void noMatchingHost() {
SpecificHostPolicy policy = new SpecificHostPolicy("worker3");
List<BlockWorkerInfo> workerInfoList = new ArrayList<>();
workerInfoList.add(new BlockWorkerInfo(new WorkerNetAddress().setHost("worker1")
.setRpcPort(PORT).setDataPort(PORT).setWebPort(PORT), Constants.GB, 0));
workerInfoList.add(new BlockWorkerInfo(new WorkerNetAddress().setHost("worker2")
.setRpcPort(PORT).setDataPort(PORT).setWebPort(PORT), Constants.GB, 0));
Assert.assertNull(policy.getWorkerForNextBlock(workerInfoList, Constants.MB));
}
}