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.runtime;
  
  import org.apache.kafka.clients.CommonClientConfigs;
  import org.apache.kafka.clients.admin.MockAdminClient;
  import org.apache.kafka.common.Node;
  import org.apache.kafka.connect.errors.ConnectException;
  
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.mockito.MockedStatic;
  import org.mockito.internal.stubbing.answers.CallsRealMethods;
  
  import java.util.Arrays;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNull;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.Mockito.mockStatic;
  import static org.mockito.Mockito.times;
  
  public class WorkerConfigTest {
  
      private static final String CLUSTER_ID = "cluster-id";
      private MockedStatic<WorkerConfig> workerConfigMockedStatic;
  
      @BeforeEach
      public void setup() {
          workerConfigMockedStatic = mockStatic(WorkerConfig.class, new CallsRealMethods());
          workerConfigMockedStatic.when(() -> WorkerConfig.lookupKafkaClusterId(any(WorkerConfig.class))).thenReturn(CLUSTER_ID);
      }
  
      @AfterEach
      public void teardown() {
          workerConfigMockedStatic.close();
      }
  
      @Test
      public void testLookupKafkaClusterId() {
          final Node broker1 = new Node(0, "dummyHost-1", 1234);
          final Node broker2 = new Node(1, "dummyHost-2", 1234);
          List<Node> cluster = Arrays.asList(broker1, broker2);
          MockAdminClient adminClient = new MockAdminClient.Builder().
                  brokers(cluster).build();
          assertEquals(MockAdminClient.DEFAULT_CLUSTER_ID, WorkerConfig.lookupKafkaClusterId(adminClient));
      }
  
      @Test
      public void testLookupNullKafkaClusterId() {
          final Node broker1 = new Node(0, "dummyHost-1", 1234);
          final Node broker2 = new Node(1, "dummyHost-2", 1234);
          List<Node> cluster = Arrays.asList(broker1, broker2);
          MockAdminClient adminClient = new MockAdminClient.Builder().
                  brokers(cluster).clusterId(null).build();
          assertNull(WorkerConfig.lookupKafkaClusterId(adminClient));
      }
  
      @Test
      public void testLookupKafkaClusterIdTimeout() {
          final Node broker1 = new Node(0, "dummyHost-1", 1234);
          final Node broker2 = new Node(1, "dummyHost-2", 1234);
          List<Node> cluster = Arrays.asList(broker1, broker2);
          MockAdminClient adminClient = new MockAdminClient.Builder().
                  brokers(cluster).build();
          adminClient.timeoutNextRequest(1);
  
          assertThrows(ConnectException.class, () -> WorkerConfig.lookupKafkaClusterId(adminClient));
      }
  
      @Test
      public void testKafkaClusterId() {
          Map<String, String> props = baseProps();
          WorkerConfig config = new WorkerConfig(WorkerConfig.baseConfigDef(), props);
          assertEquals(CLUSTER_ID, config.kafkaClusterId());
          workerConfigMockedStatic.verify(() -> WorkerConfig.lookupKafkaClusterId(any(WorkerConfig.class)), times(1));
  
          // next calls hit the cache
          assertEquals(CLUSTER_ID, config.kafkaClusterId());
          workerConfigMockedStatic.verify(() -> WorkerConfig.lookupKafkaClusterId(any(WorkerConfig.class)), times(1));
      }
  
      private Map<String, String> baseProps() {
          Map<String, String> props = new HashMap<>();
          props.put(CommonClientConfigs.BOOTSTRAP_SERVERS_CONFIG, "localhost:9092");
          props.put(WorkerConfig.KEY_CONVERTER_CLASS_CONFIG, "org.apache.kafka.connect.json.JsonConverter");
          props.put(WorkerConfig.VALUE_CONVERTER_CLASS_CONFIG, "org.apache.kafka.connect.json.JsonConverter");
          return props;
      }
  
  }
  