TestFairSchedulerEventLog.java

/**
 * 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.mapred;

import java.io.File;
import java.io.IOException;

import junit.framework.Assert;
import junit.framework.TestCase;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.mapred.TestFairScheduler.FakeTaskTrackerManager;

public class TestFairSchedulerEventLog extends TestCase {
  
  private File logFile;
  
  /**
   * Make sure the scheduler creates the event log.
   */
  public void testCreateEventLog() throws IOException {
    Configuration conf = new Configuration();
    conf.set("mapred.fairscheduler.eventlog.enabled", "true");
    
    FakeTaskTrackerManager taskTrackerManager = new FakeTaskTrackerManager(1, 1);
    
    FairScheduler scheduler = new FairScheduler();
    scheduler.setConf(conf);
    scheduler.setTaskTrackerManager(taskTrackerManager);
    scheduler.start();
    
    FairSchedulerEventLog eventLog = scheduler.getEventLog();
    
    scheduler.terminate();
    
    logFile = new File(eventLog.getLogFile());
    Assert.assertTrue(logFile.exists());
  }
  
  @Override
  public void tearDown() {
    logFile.delete();
    logFile.getParentFile().delete(); // fairscheduler/
  }
}