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.kafka.common;
  
  import org.junit.jupiter.api.Test;
  
  import java.util.Objects;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotEquals;
  
  class TopicIdPartitionTest {
  
      private final Uuid topicId0 = new Uuid(-4883993789924556279L, -5960309683534398572L);
      private final String topicName0 = "a_topic_name";
      private final int partition1 = 1;
      private final TopicPartition topicPartition0 = new TopicPartition(topicName0, partition1);
      private final TopicIdPartition topicIdPartition0 = new TopicIdPartition(topicId0, topicPartition0);
      private final TopicIdPartition topicIdPartition1 = new TopicIdPartition(topicId0,
          partition1, topicName0);
  
      private final TopicIdPartition topicIdPartitionWithNullTopic0 = new TopicIdPartition(topicId0,
          partition1, null);
      private final TopicIdPartition topicIdPartitionWithNullTopic1 = new TopicIdPartition(topicId0,
          new TopicPartition(null, partition1));
  
      private final Uuid topicId1 = new Uuid(7759286116672424028L, -5081215629859775948L);
      private final String topicName1 = "another_topic_name";
      private final TopicIdPartition topicIdPartition2 = new TopicIdPartition(topicId1,
          partition1, topicName1);
      private final TopicIdPartition topicIdPartitionWithNullTopic2 = new TopicIdPartition(topicId1,
          new TopicPartition(null, partition1));
  
      @Test
      public void testEquals() {
          assertEquals(topicIdPartition0, topicIdPartition1);
          assertEquals(topicIdPartition1, topicIdPartition0);
          assertEquals(topicIdPartitionWithNullTopic0, topicIdPartitionWithNullTopic1);
  
          assertNotEquals(topicIdPartition0, topicIdPartition2);
          assertNotEquals(topicIdPartition2, topicIdPartition0);
          assertNotEquals(topicIdPartition0, topicIdPartitionWithNullTopic0);
          assertNotEquals(topicIdPartitionWithNullTopic0, topicIdPartitionWithNullTopic2);
      }
  
      @Test
      public void testHashCode() {
          assertEquals(Objects.hash(topicIdPartition0.topicId(), topicIdPartition0.topicPartition()),
              topicIdPartition0.hashCode());
          assertEquals(topicIdPartition0.hashCode(), topicIdPartition1.hashCode());
  
          assertEquals(Objects.hash(topicIdPartitionWithNullTopic0.topicId(),
              new TopicPartition(null, partition1)), topicIdPartitionWithNullTopic0.hashCode());
          assertEquals(topicIdPartitionWithNullTopic0.hashCode(), topicIdPartitionWithNullTopic1.hashCode());
  
          assertNotEquals(topicIdPartition0.hashCode(), topicIdPartition2.hashCode());
          assertNotEquals(topicIdPartition0.hashCode(), topicIdPartitionWithNullTopic0.hashCode());
          assertNotEquals(topicIdPartitionWithNullTopic0.hashCode(), topicIdPartitionWithNullTopic2.hashCode());
      }
  
      @Test
      public void testToString() {
          assertEquals("vDiRhkpVQgmtSLnsAZx7lA:a_topic_name-1", topicIdPartition0.toString());
          assertEquals("vDiRhkpVQgmtSLnsAZx7lA:null-1", topicIdPartitionWithNullTopic0.toString());
      }
  
  }
  