twill-yarn/src/test/java/org/apache/twill/yarn/DistributeShellTestRun.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.twill.yarn;

import org.apache.twill.api.TwillController;
import org.apache.twill.api.TwillRunner;
import org.apache.twill.api.logging.PrinterLogHandler;
import org.apache.twill.common.Threads;
import org.junit.Assert;
import org.junit.Ignore;
import org.junit.Test;

import java.io.PrintWriter;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;

/**
 * This test is executed by {@link YarnTestSuite}.
 */
public final class DistributeShellTestRun extends BaseYarnTest {

  @Ignore
  @Test
  public void testDistributedShell() throws InterruptedException {
    TwillRunner twillRunner = getTwillRunner();

    TwillController controller = twillRunner.prepare(new DistributedShell("pwd", "ls -al"))
                                            .addLogHandler(new PrinterLogHandler(new PrintWriter(System.out)))
                                            .start();

    final CountDownLatch stopLatch = new CountDownLatch(1);
    controller.onTerminated(new Runnable() {
      @Override
      public void run() {
        stopLatch.countDown();
      }
    }, Threads.SAME_THREAD_EXECUTOR);

    Assert.assertTrue(stopLatch.await(10, TimeUnit.SECONDS));
  }
}