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   * 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.cassandra.repair;
  
  import java.util.List;
  
  import com.google.common.collect.ImmutableList;
  import org.junit.Assert;
  import org.junit.Test;
  
  import org.apache.cassandra.dht.Range;
  import org.apache.cassandra.dht.Token;
  import org.apache.cassandra.locator.InetAddressAndPort;
  import org.apache.cassandra.repair.messages.RepairMessage;
  import org.apache.cassandra.repair.messages.SyncRequest;
  import org.apache.cassandra.streaming.PreviewKind;
  
  import static org.apache.cassandra.utils.TimeUUID.Generator.nextTimeUUID;
  
  public class SymmetricRemoteSyncTaskTest extends AbstractRepairTest
  {
      private static final RepairJobDesc DESC = new RepairJobDesc(nextTimeUUID(), nextTimeUUID(), "ks", "tbl", ALL_RANGES);
      private static final List<Range<Token>> RANGE_LIST = ImmutableList.of(RANGE1);
      private static class InstrumentedSymmetricRemoteSyncTask extends SymmetricRemoteSyncTask
      {
          public InstrumentedSymmetricRemoteSyncTask(InetAddressAndPort e1, InetAddressAndPort e2)
          {
              super(SharedContext.Global.instance, DESC, e1, e2, RANGE_LIST, PreviewKind.NONE);
          }
  
          RepairMessage sentMessage = null;
          InetAddressAndPort sentTo = null;
  
          @Override
          void sendRequest(SyncRequest request, InetAddressAndPort to)
          {
              Assert.assertNull(sentMessage);
              Assert.assertNotNull(request);
              Assert.assertNotNull(to);
              sentMessage = request;
              sentTo = to;
          }
      }
  
      @Test
      public void normalSync()
      {
          InstrumentedSymmetricRemoteSyncTask syncTask = new InstrumentedSymmetricRemoteSyncTask(PARTICIPANT1, PARTICIPANT2);
          syncTask.startSync();
  
          Assert.assertNotNull(syncTask.sentMessage);
          Assert.assertSame(SyncRequest.class, syncTask.sentMessage.getClass());
          Assert.assertEquals(PARTICIPANT1, syncTask.sentTo);
      }
  }
  