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.errors.InvalidConfigurationException;
  import org.apache.kafka.common.errors.UnsupportedVersionException;
  import org.apache.kafka.common.message.JoinGroupRequestData;
  import org.apache.kafka.test.TestUtils;
  
  import org.junit.jupiter.api.Test;
  
  import java.util.Arrays;
  
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.fail;
  
  public class JoinGroupRequestTest {
  
      @Test
      public void shouldAcceptValidGroupInstanceIds() {
          String maxLengthString = TestUtils.randomString(249);
          String[] validGroupInstanceIds = {"valid", "INSTANCE", "gRoUp", "ar6", "VaL1d", "_0-9_.", "...", maxLengthString};
  
          for (String instanceId : validGroupInstanceIds) {
              JoinGroupRequest.validateGroupInstanceId(instanceId);
          }
      }
  
      @Test
      public void shouldThrowOnInvalidGroupInstanceIds() {
          char[] longString = new char[250];
          Arrays.fill(longString, 'a');
          String[] invalidGroupInstanceIds = {"", "foo bar", "..", "foo:bar", "foo=bar", ".", new String(longString)};
  
          for (String instanceId : invalidGroupInstanceIds) {
              try {
                  JoinGroupRequest.validateGroupInstanceId(instanceId);
                  fail("No exception was thrown for invalid instance id: " + instanceId);
              } catch (InvalidConfigurationException e) {
                  // Good
              }
          }
      }
      @Test
      public void testRequestVersionCompatibilityFailBuild() {
          assertThrows(UnsupportedVersionException.class, () -> new JoinGroupRequest.Builder(
              new JoinGroupRequestData()
                  .setGroupId("groupId")
                  .setMemberId("consumerId")
                  .setGroupInstanceId("groupInstanceId")
                  .setProtocolType("consumer")
          ).build((short) 4));
      }
  }
  