/**
    * 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.hbase.client;
  
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertTrue;
  
  import java.util.concurrent.atomic.AtomicLong;
  
  import org.apache.hadoop.hbase.HRegionInfo;
  import org.apache.hadoop.hbase.TableName;
  import org.apache.hadoop.hbase.testclassification.SmallTests;
  import org.apache.hadoop.hbase.util.Bytes;
  import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
  import org.junit.Test;
  import org.junit.experimental.categories.Category;
  
  @Category(SmallTests.class)
  public class TestDelayingRunner {
  
    private static final TableName DUMMY_TABLE =
        TableName.valueOf("DUMMY_TABLE");
    private static final byte[] DUMMY_BYTES_1 = Bytes.toBytes("DUMMY_BYTES_1");
    private static final byte[] DUMMY_BYTES_2 = Bytes.toBytes("DUMMY_BYTES_2");
    private static HRegionInfo hri1 =
        new HRegionInfo(DUMMY_TABLE, DUMMY_BYTES_1, DUMMY_BYTES_2, false, 1);
  
    @SuppressWarnings({ "rawtypes", "unchecked" })
    @Test
    public void testDelayingRunner() throws Exception{
      MultiAction<Row> ma = new MultiAction<Row>();
      ma.add(hri1.getRegionName(), new Action<Row>(new Put(DUMMY_BYTES_1), 0));
      final AtomicLong endTime = new AtomicLong();
      final long sleepTime = 1000;
      DelayingRunner runner = new DelayingRunner(sleepTime, ma.actions.entrySet().iterator().next());
      runner.setRunner(new Runnable() {
        @Override
        public void run() {
          endTime.set(EnvironmentEdgeManager.currentTime());
        }      
      });
      long startTime = EnvironmentEdgeManager.currentTime();
      runner.run();
      long delay = endTime.get() - startTime;
      assertTrue("DelayingRunner did not delay long enough", delay >= sleepTime);
      assertFalse("DelayingRunner delayed too long", delay > sleepTime + sleepTime*0.2);
    }
  
  }