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   * 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
   * <p>
   * http://www.apache.org/licenses/LICENSE-2.0
   * <p>
   * 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.atlas.hook;
  
  import org.apache.atlas.AtlasConfiguration;
  import org.apache.atlas.utils.KafkaUtils;
  import org.apache.commons.configuration.Configuration;
  import org.mockito.Mockito;
  import org.testng.annotations.Test;
  
  import java.util.concurrent.ExecutionException;
  
  import static org.mockito.ArgumentMatchers.anyInt;
  import static org.mockito.ArgumentMatchers.anyList;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  import static org.testng.Assert.fail;
  
  public class AtlasTopicCreatorTest {
      private static final String ATLAS_HOOK_TOPIC     = AtlasConfiguration.NOTIFICATION_HOOK_TOPIC_NAME.getString();
      private static final String ATLAS_ENTITIES_TOPIC = AtlasConfiguration.NOTIFICATION_ENTITIES_TOPIC_NAME.getString();
  
      @Test
      public void shouldNotCreateAtlasTopicIfNotConfiguredToDoSo() {
          Configuration configuration = mock(Configuration.class);
  
          when(configuration.getBoolean(AtlasTopicCreator.ATLAS_NOTIFICATION_CREATE_TOPICS_KEY, true)).thenReturn(false);
  
          AtlasTopicCreator atlasTopicCreator    = new AtlasTopicCreator();
          AtlasTopicCreator spyAtlasTopicCreator = Mockito.spy(atlasTopicCreator);
  
          spyAtlasTopicCreator.createAtlasTopic(configuration, ATLAS_HOOK_TOPIC);
  
          Mockito.verify(spyAtlasTopicCreator, times(0)).handleSecurity(configuration);
      }
  
      @Test
      public void shouldCreateTopicIfConfiguredToDoSo() {
          Configuration configuration = mock(Configuration.class);
  
          KafkaUtils mockKafkaUtils = Mockito.mock(KafkaUtils.class);
  
          when(configuration.getBoolean(AtlasTopicCreator.ATLAS_NOTIFICATION_CREATE_TOPICS_KEY, true)).thenReturn(true);
          when(configuration.getString("atlas.authentication.method.kerberos")).thenReturn("false");
  
          AtlasTopicCreator atlasTopicCreator    = new AtlasTopicCreator();
          AtlasTopicCreator spyAtlasTopicCreator = Mockito.spy(atlasTopicCreator);
  
          Mockito.doReturn(mockKafkaUtils).when(spyAtlasTopicCreator).getKafkaUtils(configuration);
  
          spyAtlasTopicCreator.createAtlasTopic(configuration, ATLAS_HOOK_TOPIC);
  
          try {
              verify(mockKafkaUtils).createTopics(anyList(), anyInt(), anyInt());
          } catch (ExecutionException | InterruptedException e) {
              fail("Caught exception while verifying createTopics: " + e.getMessage());
          }
      }
  
      @Test
      public void shouldCloseResources() {
          Configuration configuration = mock(Configuration.class);
  
          when(configuration.getBoolean(AtlasTopicCreator.ATLAS_NOTIFICATION_CREATE_TOPICS_KEY, true)).thenReturn(true);
  
          when(configuration.getString("atlas.authentication.method.kerberos")).thenReturn("false");
  
          KafkaUtils        mockKafkaUtils    = Mockito.mock(KafkaUtils.class);
          AtlasTopicCreator atlasTopicCreator = new AtlasTopicCreator();
  
          AtlasTopicCreator spyAtlasTopicCreator = Mockito.spy(atlasTopicCreator);
  
          Mockito.doReturn(mockKafkaUtils).when(spyAtlasTopicCreator).getKafkaUtils(configuration);
  
          spyAtlasTopicCreator.createAtlasTopic(configuration, ATLAS_HOOK_TOPIC);
  
          verify(mockKafkaUtils).close();
      }
  
      @Test
      public void shouldNotProcessTopicCreationIfSecurityFails() {
          Configuration configuration = mock(Configuration.class);
  
          when(configuration.getBoolean(AtlasTopicCreator.ATLAS_NOTIFICATION_CREATE_TOPICS_KEY, true)).thenReturn(true);
  
          KafkaUtils        mockKafkaUtils       = Mockito.mock(KafkaUtils.class);
          AtlasTopicCreator atlasTopicCreator    = new AtlasTopicCreator();
          AtlasTopicCreator spyAtlasTopicCreator = Mockito.spy(atlasTopicCreator);
  
          Mockito.doReturn(mockKafkaUtils).when(spyAtlasTopicCreator).getKafkaUtils(configuration);
          Mockito.doReturn(false).when(spyAtlasTopicCreator).handleSecurity(configuration);
  
          spyAtlasTopicCreator.createAtlasTopic(configuration, ATLAS_HOOK_TOPIC, ATLAS_ENTITIES_TOPIC);
  
          try {
              verify(mockKafkaUtils, times(0)).createTopics(anyList(), anyInt(), anyInt());
          } catch (ExecutionException | InterruptedException e) {
              fail("Caught exception while verifying createTopics: " + e.getMessage());
          }
      }
  }
  