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.coordinator.group.streams;
  
  import org.apache.kafka.common.Uuid;
  
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  
  public class TopicMetadataTest {
  
      @Test
      public void testConstructor() {
          assertDoesNotThrow(() ->
              new TopicMetadata(Uuid.randomUuid(), "valid-topic", 3));
      }
  
      @Test
      public void testConstructorWithZeroUuid() {
          Exception exception = assertThrows(IllegalArgumentException.class, () ->
              new TopicMetadata(Uuid.ZERO_UUID, "valid-topic", 3));
          assertEquals("Topic id cannot be ZERO_UUID.", exception.getMessage());
      }
  
      @Test
      public void testConstructorWithNullUuid() {
          assertThrows(NullPointerException.class, () ->
              new TopicMetadata(null, "valid-topic", 3));
      }
  
      @Test
      public void testConstructorWithNullName() {
          assertThrows(NullPointerException.class, () ->
              new TopicMetadata(Uuid.randomUuid(), null, 3));
      }
  
      @Test
      public void testConstructorWithEmptyName() {
          Exception exception = assertThrows(IllegalArgumentException.class, () ->
              new TopicMetadata(Uuid.randomUuid(), "", 3));
          assertEquals("Topic name cannot be empty.", exception.getMessage());
      }
  
      @Test
      public void testConstructorWithZeroNumPartitions() {
          Exception exception = assertThrows(IllegalArgumentException.class, () ->
              new TopicMetadata(Uuid.randomUuid(), "valid-topic", 0));
          assertEquals("Number of partitions must be positive.", exception.getMessage());
      }
  
      @Test
      public void testConstructorWithNegativeNumPartitions() {
          Exception exception = assertThrows(IllegalArgumentException.class, () ->
              new TopicMetadata(Uuid.randomUuid(), "valid-topic", -1));
          assertEquals("Number of partitions must be positive.", exception.getMessage());
      }
  }