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.common.requests;
  
  import org.apache.kafka.clients.admin.FeatureUpdate;
  import org.apache.kafka.common.errors.UnknownServerException;
  import org.apache.kafka.common.errors.UnsupportedVersionException;
  import org.apache.kafka.common.message.UpdateFeaturesRequestData;
  import org.apache.kafka.common.protocol.Errors;
  import org.apache.kafka.common.protocol.Readable;
  
  import org.junit.jupiter.api.Test;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  
  public class UpdateFeaturesRequestTest {
  
      @Test
      public void testGetErrorResponse() {
          UpdateFeaturesRequestData.FeatureUpdateKeyCollection features =
              new UpdateFeaturesRequestData.FeatureUpdateKeyCollection();
  
          features.add(new UpdateFeaturesRequestData.FeatureUpdateKey()
              .setFeature("foo")
              .setMaxVersionLevel((short) 2)
          );
  
          features.add(new UpdateFeaturesRequestData.FeatureUpdateKey()
              .setFeature("bar")
              .setMaxVersionLevel((short) 3)
          );
  
          UpdateFeaturesRequest request = new UpdateFeaturesRequest(
              new UpdateFeaturesRequestData().setFeatureUpdates(features),
              UpdateFeaturesRequestData.HIGHEST_SUPPORTED_VERSION
          );
  
          UpdateFeaturesResponse response = request.getErrorResponse(0, new UnknownServerException());
          assertEquals(Errors.UNKNOWN_SERVER_ERROR, response.topLevelError().error());
          assertEquals(0, response.data().results().size());
          assertEquals(Collections.singletonMap(Errors.UNKNOWN_SERVER_ERROR, 1), response.errorCounts());
      }
  
      @Test
      public void testUpdateFeaturesV0() {
          UpdateFeaturesRequestData.FeatureUpdateKeyCollection features =
                  new UpdateFeaturesRequestData.FeatureUpdateKeyCollection();
  
          features.add(new UpdateFeaturesRequestData.FeatureUpdateKey()
              .setFeature("foo")
              .setMaxVersionLevel((short) 1)
              .setAllowDowngrade(true)
          );
  
          features.add(new UpdateFeaturesRequestData.FeatureUpdateKey()
              .setFeature("bar")
              .setMaxVersionLevel((short) 3)
          );
  
          UpdateFeaturesRequest request = new UpdateFeaturesRequest(
              new UpdateFeaturesRequestData().setFeatureUpdates(features),
              UpdateFeaturesRequestData.LOWEST_SUPPORTED_VERSION
          );
          Readable readable = request.serialize();
          request = UpdateFeaturesRequest.parse(readable, UpdateFeaturesRequestData.LOWEST_SUPPORTED_VERSION);
  
          List<UpdateFeaturesRequest.FeatureUpdateItem> updates = new ArrayList<>(request.featureUpdates());
          assertEquals(updates.size(), 2);
          assertEquals(updates.get(0).upgradeType(), FeatureUpdate.UpgradeType.SAFE_DOWNGRADE);
          assertEquals(updates.get(1).upgradeType(), FeatureUpdate.UpgradeType.UPGRADE);
      }
  
      @Test
      public void testUpdateFeaturesV1() {
          UpdateFeaturesRequestData.FeatureUpdateKeyCollection features =
              new UpdateFeaturesRequestData.FeatureUpdateKeyCollection();
  
          features.add(new UpdateFeaturesRequestData.FeatureUpdateKey()
              .setFeature("foo")
              .setMaxVersionLevel((short) 1)
              .setUpgradeType(FeatureUpdate.UpgradeType.SAFE_DOWNGRADE.code())
          );
  
          features.add(new UpdateFeaturesRequestData.FeatureUpdateKey()
              .setFeature("bar")
              .setMaxVersionLevel((short) 3)
          );
  
          UpdateFeaturesRequest request = new UpdateFeaturesRequest(
              new UpdateFeaturesRequestData().setFeatureUpdates(features),
              UpdateFeaturesRequestData.HIGHEST_SUPPORTED_VERSION
          );
  
          Readable readable = request.serialize();
          request = UpdateFeaturesRequest.parse(readable, UpdateFeaturesRequestData.HIGHEST_SUPPORTED_VERSION);
  
          List<UpdateFeaturesRequest.FeatureUpdateItem> updates = new ArrayList<>(request.featureUpdates());
          assertEquals(updates.size(), 2);
          assertEquals(updates.get(0).upgradeType(), FeatureUpdate.UpgradeType.SAFE_DOWNGRADE);
          assertEquals(updates.get(1).upgradeType(), FeatureUpdate.UpgradeType.UPGRADE);
  
      }
  
      @Test
      public void testUpdateFeaturesV1OldBoolean() {
          UpdateFeaturesRequestData.FeatureUpdateKeyCollection features =
              new UpdateFeaturesRequestData.FeatureUpdateKeyCollection();
  
          features.add(new UpdateFeaturesRequestData.FeatureUpdateKey()
              .setFeature("foo")
              .setMaxVersionLevel((short) 1)
              .setAllowDowngrade(true)
          );
  
          features.add(new UpdateFeaturesRequestData.FeatureUpdateKey()
              .setFeature("bar")
              .setMaxVersionLevel((short) 3)
          );
  
          UpdateFeaturesRequest request = new UpdateFeaturesRequest(
              new UpdateFeaturesRequestData().setFeatureUpdates(features),
              UpdateFeaturesRequestData.HIGHEST_SUPPORTED_VERSION
          );
          assertThrows(UnsupportedVersionException.class, request::serialize,
              "This should fail since allowDowngrade is not supported in v1 of this RPC");
      }
  
  }
  