content: /**
   * 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
   * <p>
   * http://www.apache.org/licenses/LICENSE-2.0
   * <p>
   * 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.atlas.pc;
  
  import org.testng.annotations.Test;
  
  import java.util.concurrent.BlockingQueue;
  import java.util.concurrent.CountDownLatch;
  import java.util.concurrent.LinkedBlockingQueue;
  
  import static org.testng.Assert.assertFalse;
  import static org.testng.Assert.assertTrue;
  
  public class WorkItemConsumerTest {
      @Test
      public void callingRunOnEmptyQueueCallsDoesNotCallCommitDirty() {
          BlockingQueue<Integer> bc = new LinkedBlockingQueue<>(5);
  
          IntegerConsumerSpy ic = new IntegerConsumerSpy(bc);
  
          ic.run();
  
          assertTrue(bc.isEmpty());
          assertTrue(ic.isCommitDirtyCalled());
          assertFalse(ic.isUpdateCommitTimeCalled());
      }
  
      @Test
      public void runOnQueueRemovesItemFromQueuCallsCommitDirty() {
          BlockingQueue<Integer> bc = new LinkedBlockingQueue<>(5);
  
          bc.add(1);
  
          IntegerConsumerSpy ic = new IntegerConsumerSpy(bc);
  
          ic.run();
  
          assertTrue(bc.isEmpty());
          assertTrue(ic.isCommitDirtyCalled());
          assertTrue(ic.isUpdateCommitTimeCalled());
      }
  
      static class IntegerConsumerSpy extends WorkItemConsumer<Integer> {
          boolean commitDirtyCalled;
  
          private boolean updateCommitTimeCalled;
  
          public IntegerConsumerSpy(BlockingQueue<Integer> queue) {
              super(queue);
  
              setCountDownLatch(new CountDownLatch(1));
          }
  
          public boolean isCommitDirtyCalled() {
              return commitDirtyCalled;
          }
  
          public boolean isUpdateCommitTimeCalled() {
              return updateCommitTimeCalled;
          }
  
          @Override
          protected void commitDirty() {
              commitDirtyCalled = true;
  
              super.commitDirty();
          }
  
          @Override
          protected void doCommit() {
          }
  
          @Override
          protected void processItem(Integer item) {
          }
  
          @Override
          protected void updateCommitTime(long commitTime) {
              updateCommitTimeCalled = true;
          }
      }
  }
  