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
   *
   *   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.bifromq.basecrdt.core.internal;
  
  import static org.apache.bifromq.basecrdt.core.internal.ProtoUtils.dot;
  import static org.apache.bifromq.basecrdt.core.internal.ProtoUtils.singleDot;
  import static com.google.protobuf.ByteString.copyFromUtf8;
  import static org.testng.Assert.assertFalse;
  import static org.testng.Assert.assertTrue;
  
  import com.google.common.collect.Sets;
  import com.google.protobuf.ByteString;
  import org.testng.annotations.Test;
  
  public class DotSetTest {
      private final ByteString replicaA = copyFromUtf8("A");
      private final ByteString replicaB = copyFromUtf8("B");
  
      @Test
      public void testAdd() {
          DotSet dotSet = new DotSet();
          assertTrue(dotSet.isBottom());
          assertFalse(dotSet.iterator().hasNext());
  
          assertTrue(dotSet.add(singleDot(replicaA, 1)));
          assertFalse(dotSet.add(singleDot(replicaA, 1)));
          assertTrue(dotSet.add(singleDot(replicaB, 1)));
          assertFalse(dotSet.isBottom());
  
          TestUtil.assertUnorderedSame(Sets.newHashSet(dot(replicaA, 1), dot(replicaB, 1)).iterator(), dotSet.iterator());
      }
  
      @Test
      public void testRemove() {
          DotSet dotSet = new DotSet();
  
          dotSet.add(singleDot(replicaA, 1));
          dotSet.add(singleDot(replicaB, 1));
  
          assertTrue(dotSet.remove(singleDot(replicaA, 1)));
          assertFalse(dotSet.remove(singleDot(replicaA, 1)));
          assertTrue(dotSet.remove(singleDot(replicaB, 1)));
          assertTrue(dotSet.isBottom());
          assertFalse(dotSet.iterator().hasNext());
      }
  }
  