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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
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  package org.apache.cassandra.repair;
  
  import java.util.Collections;
  import java.util.List;
  import java.util.Set;
  
  import com.google.common.collect.Lists;
  import com.google.common.collect.Sets;
  import org.junit.Assert;
  import org.junit.Test;
  
  import org.apache.cassandra.locator.InetAddressAndPort;
  
  import static org.apache.cassandra.repair.RepairCoordinator.NeighborsAndRanges;
  
  public class NeighborsAndRangesTest extends AbstractRepairTest
  {
      /**
       * For non-forced repairs, common ranges should be passed through as-is
       */
      @Test
      public void filterCommonIncrementalRangesNotForced()
      {
          CommonRange cr = new CommonRange(PARTICIPANTS, Collections.emptySet(), ALL_RANGES);
          NeighborsAndRanges nr = new NeighborsAndRanges(false, PARTICIPANTS, Collections.singletonList(cr));
          List<CommonRange> expected = Lists.newArrayList(cr);
          List<CommonRange> actual = nr.filterCommonRanges(null, null);
  
          Assert.assertEquals(expected, actual);
      }
  
      @Test
      public void forceFilterCommonIncrementalRanges()
      {
          CommonRange cr1 = new CommonRange(Sets.newHashSet(PARTICIPANT1, PARTICIPANT2), Collections.emptySet(), Sets.newHashSet(RANGE1));
          CommonRange cr2 = new CommonRange(Sets.newHashSet(PARTICIPANT1, PARTICIPANT2, PARTICIPANT3), Collections.emptySet(), Sets.newHashSet(RANGE3));
          CommonRange cr3 = new CommonRange(Sets.newHashSet(PARTICIPANT2, PARTICIPANT3), Collections.emptySet(), Sets.newHashSet(RANGE2));
          Set<InetAddressAndPort> liveEndpoints = Sets.newHashSet(PARTICIPANT2, PARTICIPANT3); // PARTICIPANT1 is excluded
          List<CommonRange> initial = Lists.newArrayList(cr1, cr2, cr3);
          List<CommonRange> expected = Lists.newArrayList(new CommonRange(Sets.newHashSet(PARTICIPANT2), Collections.emptySet(), Sets.newHashSet(RANGE1), true),
                                                          new CommonRange(Sets.newHashSet(PARTICIPANT2, PARTICIPANT3), Collections.emptySet(), Sets.newHashSet(RANGE3), true),
                                                          new CommonRange(Sets.newHashSet(PARTICIPANT2, PARTICIPANT3), Collections.emptySet(), Sets.newHashSet(RANGE2), false));
  
          NeighborsAndRanges nr = new NeighborsAndRanges(true, liveEndpoints, initial);
          List<CommonRange> actual = nr.filterCommonRanges(null, null);
  
          Assert.assertEquals(expected, actual);
      }
  }
  