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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
   *
   *    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.clients;
  
  import org.apache.kafka.clients.admin.FeatureUpdate;
  import org.apache.kafka.clients.admin.UpdateFeaturesOptions;
  import org.apache.kafka.common.test.ClusterInstance;
  import org.apache.kafka.common.test.TestUtils;
  import org.apache.kafka.common.test.api.ClusterTest;
  import org.apache.kafka.common.test.api.ClusterTests;
  import org.apache.kafka.common.test.api.Type;
  import org.apache.kafka.server.common.MetadataVersion;
  
  import java.util.Map;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  public class MetadataVersionIntegrationTest {
      @ClusterTests(value = {
          @ClusterTest(types = Type.KRAFT, metadataVersion = MetadataVersion.IBP_3_3_IV3),
          @ClusterTest(types = Type.KRAFT, metadataVersion = MetadataVersion.IBP_3_4_IV0),
          @ClusterTest(types = Type.KRAFT, metadataVersion = MetadataVersion.IBP_3_5_IV0),
          @ClusterTest(types = Type.KRAFT, metadataVersion = MetadataVersion.IBP_3_6_IV0),
          @ClusterTest(types = Type.KRAFT, metadataVersion = MetadataVersion.IBP_3_6_IV1)
      })
      public void testBasicMetadataVersionUpgrade(ClusterInstance clusterInstance) throws Exception {
          try (var admin = clusterInstance.admin()) {
              var describeResult = admin.describeFeatures();
              var ff = describeResult.featureMetadata().get().finalizedFeatures().get(MetadataVersion.FEATURE_NAME);
              assertEquals(clusterInstance.config().metadataVersion().featureLevel(), ff.minVersionLevel());
              assertEquals(clusterInstance.config().metadataVersion().featureLevel(), ff.maxVersionLevel());
  
              // Update to new version
              short updateVersion = MetadataVersion.IBP_3_7_IV1.featureLevel();
              var updateResult = admin.updateFeatures(
                      Map.of("metadata.version", new FeatureUpdate(updateVersion, FeatureUpdate.UpgradeType.UPGRADE)),
                      new UpdateFeaturesOptions());
              updateResult.all().get();
  
              // Verify that new version is visible on broker
              TestUtils.waitForCondition(() -> {
                  try {
                      var describeResult2 = admin.describeFeatures();
                      var ff2 = describeResult2.featureMetadata().get().finalizedFeatures().get(MetadataVersion.FEATURE_NAME);
                      return ff2.minVersionLevel() == updateVersion && ff2.maxVersionLevel() == updateVersion;
                  } catch (Exception e) {
                      return false;
                  }
              }, "Never saw metadata.version increase on broker");
          }
      }
  
      @ClusterTest(types = Type.KRAFT, metadataVersion = MetadataVersion.IBP_3_9_IV0)
      public void testUpgradeSameVersion(ClusterInstance clusterInstance) throws Exception {
          try (var admin = clusterInstance.admin()) {
              short updateVersion = MetadataVersion.IBP_3_9_IV0.featureLevel();
              var updateResult = admin.updateFeatures(
                      Map.of("metadata.version", new FeatureUpdate(updateVersion, FeatureUpdate.UpgradeType.UPGRADE)),
                      new UpdateFeaturesOptions());
              updateResult.all().get();
          }
      }
  
      @ClusterTest(types = Type.KRAFT)
      public void testDefaultIsLatestVersion(ClusterInstance clusterInstance) throws Exception {
          try (var admin = clusterInstance.admin()) {
              var describeResult = admin.describeFeatures();
              var ff = describeResult.featureMetadata().get().finalizedFeatures().get(MetadataVersion.FEATURE_NAME);
              assertEquals(MetadataVersion.latestTesting().featureLevel(), ff.minVersionLevel(),
                      "If this test fails, check the default MetadataVersion in the @ClusterTest annotation");
              assertEquals(MetadataVersion.latestTesting().featureLevel(), ff.maxVersionLevel());
          }
      }
  }
  