java/kudu-client-tools/src/test/java/org/apache/kudu/mapreduce/tools/ITRowCounter.java

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//   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.kudu.mapreduce.tools;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.util.GenericOptionsParser;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;

import org.apache.kudu.client.BaseKuduTest;
import org.apache.kudu.mapreduce.CommandLineParser;
import org.apache.kudu.mapreduce.HadoopTestingUtility;

public class ITRowCounter extends BaseKuduTest {

  private static final String TABLE_NAME =
      ITRowCounter.class.getName() + "-" + System.currentTimeMillis();

  private static final HadoopTestingUtility HADOOP_UTIL = new HadoopTestingUtility();

  @BeforeClass
  public static void setUpBeforeClass() throws Exception {
    BaseKuduTest.setUpBeforeClass();
  }

  @AfterClass
  public static void tearDownAfterClass() throws Exception {
    try {
      BaseKuduTest.tearDownAfterClass();
    } finally {
      HADOOP_UTIL.cleanup();
    }
  }

  @Test
  public void test() throws Exception {
    Configuration conf = new Configuration();
    HADOOP_UTIL.setupAndGetTestDir(ITRowCounter.class.getName(), conf).getAbsolutePath();

    createFourTabletsTableWithNineRows(TABLE_NAME);

    String[] args = new String[] {
        "-D" + CommandLineParser.MASTER_ADDRESSES_KEY + "=" + getMasterAddresses(), TABLE_NAME};
    GenericOptionsParser parser = new GenericOptionsParser(conf, args);
    Job job = RowCounter.createSubmittableJob(parser.getConfiguration(), parser.getRemainingArgs());
    assertTrue("Job did not end properly", job.waitForCompletion(true));

    assertEquals(9, job.getCounters().findCounter(RowCounter.Counters.ROWS).getValue());
  }
}