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.connect.mirror;
  
  import org.apache.kafka.clients.admin.Admin;
  import org.apache.kafka.clients.admin.CreateTopicsResult;
  import org.apache.kafka.common.KafkaFuture;
  import org.apache.kafka.common.errors.ClusterAuthorizationException;
  import org.apache.kafka.common.errors.InvalidConfigurationException;
  import org.apache.kafka.common.errors.TimeoutException;
  import org.apache.kafka.common.errors.TopicAuthorizationException;
  import org.apache.kafka.common.errors.TopicExistsException;
  import org.apache.kafka.common.errors.UnsupportedVersionException;
  import org.apache.kafka.connect.errors.ConnectException;
  
  import org.junit.jupiter.api.Test;
  
  import java.util.Collections;
  import java.util.Map;
  import java.util.concurrent.ExecutionException;
  
  import static org.junit.jupiter.api.Assertions.assertInstanceOf;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  public class MirrorUtilsTest {
  
      private static final String TOPIC = "topic";
  
      private final Admin admin = mock(Admin.class);
      private final CreateTopicsResult ctr = mock(CreateTopicsResult.class);
      @SuppressWarnings("unchecked")
      private final KafkaFuture<Void> future = mock(KafkaFuture.class);
  
      @Test
      public void testCreateCompactedTopic() throws Exception {
          Map<String, KafkaFuture<Void>> values = Collections.singletonMap(TOPIC, future);
          when(future.get()).thenReturn(null);
          when(ctr.values()).thenReturn(values);
          when(admin.createTopics(any(), any())).thenReturn(ctr);
          MirrorUtils.createCompactedTopic(TOPIC, (short) 1, (short) 1, admin);
  
          verify(future).get();
          verify(ctr).values();
          verify(admin).createTopics(any(), any());
      }
  
      @Test
      public void testCreateCompactedTopicAlreadyExists() throws Exception {
          Map<String, KafkaFuture<Void>> values = Collections.singletonMap(TOPIC, future);
          when(future.get()).thenThrow(new ExecutionException(new TopicExistsException("topic exists")));
          when(ctr.values()).thenReturn(values);
          when(admin.createTopics(any(), any())).thenReturn(ctr);
          MirrorUtils.createCompactedTopic(TOPIC, (short) 1, (short) 1, admin);
  
          verify(future).get();
          verify(ctr).values();
          verify(admin).createTopics(any(), any());
      }
  
      @Test
      public void testCreateCompactedTopicAssumeTopicAlreadyExistsWithUnsupportedVersionException() throws Exception {
          Map<String, KafkaFuture<Void>> values = Collections.singletonMap(TOPIC, future);
          when(future.get()).thenThrow(new ExecutionException(new UnsupportedVersionException("unsupported")));
          when(ctr.values()).thenReturn(values);
          when(admin.createTopics(any(), any())).thenReturn(ctr);
          MirrorUtils.createCompactedTopic(TOPIC, (short) 1, (short) 1, admin);
  
          verify(future).get();
          verify(ctr).values();
          verify(admin).createTopics(any(), any());
      }
  
      @Test
      public void testCreateCompactedTopicAssumeTopicAlreadyExistsWithClusterAuthorizationException() throws Exception {
          Map<String, KafkaFuture<Void>> values = Collections.singletonMap(TOPIC, future);
          when(future.get()).thenThrow(new ExecutionException(new ClusterAuthorizationException("not authorised")));
          when(ctr.values()).thenReturn(values);
          when(admin.createTopics(any(), any())).thenReturn(ctr);
          MirrorUtils.createCompactedTopic(TOPIC, (short) 1, (short) 1, admin);
  
          verify(future).get();
          verify(ctr).values();
          verify(admin).createTopics(any(), any());
      }
  
      @Test
      public void testCreateCompactedTopicAssumeTopicAlreadyExistsWithTopicAuthorizationException() throws Exception {
          Map<String, KafkaFuture<Void>> values = Collections.singletonMap(TOPIC, future);
          when(future.get()).thenThrow(new ExecutionException(new TopicAuthorizationException("not authorised")));
          when(ctr.values()).thenReturn(values);
          when(admin.createTopics(any(), any())).thenReturn(ctr);
          MirrorUtils.createCompactedTopic(TOPIC, (short) 1, (short) 1, admin);
  
          verify(future).get();
          verify(ctr).values();
          verify(admin).createTopics(any(), any());
      }
  
      @Test
      public void testCreateCompactedTopicFailsWithInvalidConfigurationException() throws Exception {
          Map<String, KafkaFuture<Void>> values = Collections.singletonMap(TOPIC, future);
          when(future.get()).thenThrow(new ExecutionException(new InvalidConfigurationException("wrong config")));
          when(ctr.values()).thenReturn(values);
          when(admin.createTopics(any(), any())).thenReturn(ctr);
          Throwable ce = assertThrows(ConnectException.class, () -> MirrorUtils.createCompactedTopic(TOPIC, (short) 1, (short) 1, admin), "Should have exception thrown");
  
          assertInstanceOf(InvalidConfigurationException.class, ce.getCause());
          verify(future).get();
          verify(ctr).values();
          verify(admin).createTopics(any(), any());
      }
  
      @Test
      public void testCreateCompactedTopicFailsWithTimeoutException() throws Exception {
          Map<String, KafkaFuture<Void>> values = Collections.singletonMap(TOPIC, future);
          when(future.get()).thenThrow(new ExecutionException(new TimeoutException("Timeout")));
          when(ctr.values()).thenReturn(values);
          when(admin.createTopics(any(), any())).thenReturn(ctr);
          Throwable ce = assertThrows(ConnectException.class, () -> MirrorUtils.createCompactedTopic(TOPIC, (short) 1, (short) 1, admin), "Should have exception thrown");
  
          assertInstanceOf(TimeoutException.class, ce.getCause());
          verify(future).get();
          verify(ctr).values();
          verify(admin).createTopics(any(), any());
      }
  }
  