/**
* 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.streaming;
import org.junit.Test;
import static org.junit.Assert.*;
import java.io.File;
import java.io.IOException;
import org.apache.hadoop.fs.FileUtil;
import org.apache.hadoop.mapred.Counters;
import org.apache.hadoop.mapred.Counters.Counter;
import org.apache.hadoop.mapred.Counters.Group;
/**
* This class tests streaming counters in MapReduce local mode.
*/
public class TestStreamingCounters extends TestStreaming {
public TestStreamingCounters() throws IOException {
super();
}
@Test
public void testCommandLine() throws IOException
{
try {
try {
FileUtil.fullyDelete(OUTPUT_DIR.getAbsoluteFile());
} catch (Exception e) {
}
createInput();
boolean mayExit = false;
// During tests, the default Configuration will use a local mapred
// So don't specify -config or -cluster
StreamJob job = new StreamJob(genArgs(), mayExit);
job.go();
File outFile = new File(OUTPUT_DIR, "part-00000").getAbsoluteFile();
String output = StreamUtil.slurp(outFile);
outFile.delete();
assertEquals(outputExpect, output);
Counters counters = job.running_.getCounters();
assertNotNull("Counters", counters);
Group group = counters.getGroup("UserCounters");
assertNotNull("Group", group);
Counter counter = group.getCounterForName("InputLines");
assertNotNull("Counter", counter);
assertEquals(3, counter.getCounter());
} finally {
try {
INPUT_FILE.delete();
FileUtil.fullyDelete(OUTPUT_DIR.getAbsoluteFile());
} catch (IOException e) {
e.printStackTrace();
}
}
}
}