hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/api/TestApplicationId.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.yarn.api;

import org.junit.Assert;

import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.junit.Test;

public class TestApplicationId {

  @Test
  public void testApplicationId() {
    ApplicationId a1 = ApplicationId.newInstance(10l, 1);
    ApplicationId a2 = ApplicationId.newInstance(10l, 2);
    ApplicationId a3 = ApplicationId.newInstance(10l, 1);
    ApplicationId a4 = ApplicationId.newInstance(8l, 3);

    Assert.assertFalse(a1.equals(a2));
    Assert.assertFalse(a1.equals(a4));
    Assert.assertTrue(a1.equals(a3));

    Assert.assertTrue(a1.compareTo(a2) < 0);
    Assert.assertTrue(a1.compareTo(a3) == 0);
    Assert.assertTrue(a1.compareTo(a4) > 0);

    Assert.assertTrue(a1.hashCode() == a3.hashCode());
    Assert.assertFalse(a1.hashCode() == a2.hashCode());
    Assert.assertFalse(a2.hashCode() == a4.hashCode());
    
    long ts = System.currentTimeMillis();
    ApplicationId a5 = ApplicationId.newInstance(ts, 45436343);
    Assert.assertEquals("application_10_0001", a1.toString());
    Assert.assertEquals("application_" + ts + "_45436343", a5.toString());
  }

}