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.common.message.JoinGroupResponseData;
  import org.apache.kafka.common.protocol.ApiKeys;
  import org.apache.kafka.common.utils.annotation.ApiKeyVersionsSource;
  
  import org.junit.jupiter.params.ParameterizedTest;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNull;
  
  public class JoinGroupResponseTest {
      @ParameterizedTest
      @ApiKeyVersionsSource(apiKey = ApiKeys.JOIN_GROUP)
      public void testProtocolNameBackwardCompatibility(short version) {
          JoinGroupResponseData data = new JoinGroupResponseData()
              .setProtocolName(null);
  
          JoinGroupResponse joinGroupResponse = new JoinGroupResponse(data, version);
  
          if (version < 7) {
              assertEquals("", joinGroupResponse.data().protocolName());
          } else {
              assertNull(joinGroupResponse.data().protocolName());
          }
      }
  
      @ParameterizedTest
      @ApiKeyVersionsSource(apiKey = ApiKeys.JOIN_GROUP)
      public void testProtocolNameComplianceWithVersion7AndAbove(short version) {
          JoinGroupResponseData data = new JoinGroupResponseData()
              .setProtocolName("");
  
          JoinGroupResponse joinGroupResponse = new JoinGroupResponse(data, version);
  
          if (version < 7) {
              assertEquals("", joinGroupResponse.data().protocolName());
          } else {
              assertNull(joinGroupResponse.data().protocolName());
          }
      }
  }
  