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.image.node;
  
  import org.apache.kafka.common.Uuid;
  import org.apache.kafka.image.ClusterImage;
  import org.apache.kafka.metadata.BrokerRegistration;
  import org.apache.kafka.metadata.VersionRange;
  import org.apache.kafka.server.common.MetadataVersion;
  
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.Timeout;
  
  import java.util.List;
  import java.util.Map;
  import java.util.Optional;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertNull;
  
  
  @Timeout(value = 40)
  public class ClusterImageBrokersNodeTest {
      private static final ClusterImage TEST_IMAGE = new ClusterImage(
              Map.of(1, new BrokerRegistration.Builder().
                      setId(1).
                      setEpoch(1001).
                      setIncarnationId(Uuid.fromString("MJkaH0j0RwuC3W2GHQHtWA")).
                      setListeners(List.of()).
                      setSupportedFeatures(Map.of(MetadataVersion.FEATURE_NAME, VersionRange.of(1, 4))).
                      setRack(Optional.empty()).
                      setFenced(false).
                      setDirectories(List.of(Uuid.fromString("anCdBWcFTlu8gE1wP6bh3g"), Uuid.fromString("JsnDDNVyTL289kYk6sPzig"))).
                      setInControlledShutdown(false).build()),
              Map.of());
  
      private static final ClusterImageBrokersNode NODE = new ClusterImageBrokersNode(TEST_IMAGE);
  
      @Test
      public void testChildNames() {
          assertEquals(List.of("1"), NODE.childNames());
      }
  
      @Test
      public void testNode1Child() {
          MetadataNode child = NODE.child("1");
          assertNotNull(child);
          assertEquals("BrokerRegistration(id=1, epoch=1001, " +
              "incarnationId=MJkaH0j0RwuC3W2GHQHtWA, " +
              "listeners=[], " +
              "supportedFeatures={metadata.version: 1-4}, " +
              "rack=Optional.empty, " +
              "fenced=false, " +
              "inControlledShutdown=false, " +
              "isMigratingZkBroker=false, " +
              "directories=[JsnDDNVyTL289kYk6sPzig, anCdBWcFTlu8gE1wP6bh3g])",
              child.stringify());
      }
  
      @Test
      public void testUnknownChild() {
          assertNull(NODE.child("2"));
      }
  }
  