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.metadata.placement;
  
  import org.apache.kafka.common.Uuid;
  
  import org.junit.jupiter.api.Test;
  
  import java.util.List;
  
  import static org.apache.kafka.metadata.placement.PartitionAssignmentTest.partitionAssignment;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotEquals;
  
  public class TopicAssignmentTest {
  
      @Test
      public void testTopicAssignmentReplicas() {
          List<Integer> replicasP0 = List.of(0, 1, 2);
          List<Integer> replicasP1 = List.of(1, 2, 0);
          List<PartitionAssignment> partitionAssignments = List.of(
              partitionAssignment(replicasP0),
              partitionAssignment(replicasP1)
          );
          assertEquals(partitionAssignments, new TopicAssignment(partitionAssignments).assignments());
      }
  
      @Test
      public void testConsistentEqualsAndHashCode() {
          List<TopicAssignment> topicAssignments = List.of(
              new TopicAssignment(
                  List.of(
                      partitionAssignment(
                          List.of(0, 1, 2)
                      )
                  )
              ),
              new TopicAssignment(
                  List.of(
                      partitionAssignment(
                          List.of(1, 2, 0)
                      )
                  )
              )
          );
  
          for (int i = 0; i < topicAssignments.size(); i++) {
              for (int j = 0; j < topicAssignments.size(); j++) {
                  if (i == j) {
                      assertEquals(topicAssignments.get(i), topicAssignments.get(j));
                      assertEquals(topicAssignments.get(i), new TopicAssignment(topicAssignments.get(i).assignments()));
                      assertEquals(topicAssignments.get(i).hashCode(), topicAssignments.get(j).hashCode());
                  } else {
                      assertNotEquals(topicAssignments.get(i), topicAssignments.get(j));
                      assertNotEquals(topicAssignments.get(i).hashCode(), topicAssignments.get(j).hashCode());
                  }
              }
          }
      }
  
      @Test
      public void testToString() {
          List<Integer> replicas = List.of(0, 1, 2);
          List<Uuid> directories = List.of(
                  Uuid.fromString("v56qeYzNRrqNtXsxzcReog"),
                  Uuid.fromString("MvUIAsOiRlSePeiBHdZrSQ"),
                  Uuid.fromString("jUqCchHtTHqMxeVv4dw1RA")
          );
          List<PartitionAssignment> partitionAssignments = List.of(
              new PartitionAssignment(replicas, directories::get)
          );
          TopicAssignment topicAssignment = new TopicAssignment(partitionAssignments);
          assertEquals("TopicAssignment(assignments=[PartitionAssignment(replicas=[0, 1, 2], " +
                  "directories=[v56qeYzNRrqNtXsxzcReog, MvUIAsOiRlSePeiBHdZrSQ, jUqCchHtTHqMxeVv4dw1RA])])", topicAssignment.toString());
      }
  }
  