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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.coordinator.group;
  
  import org.apache.kafka.common.Configurable;
  import org.apache.kafka.common.KafkaException;
  import org.apache.kafka.common.config.AbstractConfig;
  import org.apache.kafka.common.config.ConfigException;
  import org.apache.kafka.common.record.CompressionType;
  import org.apache.kafka.coordinator.group.api.assignor.ConsumerGroupPartitionAssignor;
  import org.apache.kafka.coordinator.group.api.assignor.GroupAssignment;
  import org.apache.kafka.coordinator.group.api.assignor.GroupSpec;
  import org.apache.kafka.coordinator.group.api.assignor.PartitionAssignorException;
  import org.apache.kafka.coordinator.group.api.assignor.ShareGroupPartitionAssignor;
  import org.apache.kafka.coordinator.group.api.assignor.SubscribedTopicDescriber;
  import org.apache.kafka.coordinator.group.assignor.RangeAssignor;
  import org.apache.kafka.coordinator.group.assignor.SimpleAssignor;
  import org.apache.kafka.coordinator.group.assignor.UniformAssignor;
  
  import org.junit.jupiter.api.Test;
  
  import java.time.Duration;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertInstanceOf;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  public class GroupCoordinatorConfigTest {
  
      public static class CustomAssignor implements ConsumerGroupPartitionAssignor, Configurable, ShareGroupPartitionAssignor {
          public Map<String, ?> configs;
  
          @Override
          public void configure(Map<String, ?> configs) {
              this.configs = configs;
          }
  
          @Override
          public String name() {
              return "CustomAssignor";
          }
  
          @Override
          public GroupAssignment assign(
              GroupSpec groupSpec,
              SubscribedTopicDescriber subscribedTopicDescriber
          ) throws PartitionAssignorException {
              return null;
          }
      }
  
      @Test
      public void testConsumerGroupAssignorFullClassNames() {
          // The full class name of the assignors is part of our public api. Hence,
          // we should ensure that they are not changed by mistake.
          assertEquals(
              "org.apache.kafka.coordinator.group.assignor.UniformAssignor",
              UniformAssignor.class.getName()
          );
          assertEquals(
              "org.apache.kafka.coordinator.group.assignor.RangeAssignor",
              RangeAssignor.class.getName()
          );
      }
  
      @Test
      public void testConsumerGroupAssignors() {
          Map<String, Object> configs = new HashMap<>();
          GroupCoordinatorConfig config;
          List<ConsumerGroupPartitionAssignor> assignors;
  
          // Test short names.
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_ASSIGNORS_CONFIG, "range, uniform");
          config = createConfig(configs);
          assignors = config.consumerGroupAssignors();
          assertEquals(2, assignors.size());
          assertTrue(assignors.get(0) instanceof RangeAssignor);
          assertTrue(assignors.get(1) instanceof UniformAssignor);
  
          // Test custom assignor.
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_ASSIGNORS_CONFIG, CustomAssignor.class.getName());
          config = createConfig(configs);
          assignors = config.consumerGroupAssignors();
          assertEquals(1, assignors.size());
          assertTrue(assignors.get(0) instanceof CustomAssignor);
          assertNotNull(((CustomAssignor) assignors.get(0)).configs);
  
          // Test with classes.
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_ASSIGNORS_CONFIG, List.of(RangeAssignor.class, CustomAssignor.class));
          config = createConfig(configs);
          assignors = config.consumerGroupAssignors();
          assertEquals(2, assignors.size());
          assertTrue(assignors.get(0) instanceof RangeAssignor);
          assertTrue(assignors.get(1) instanceof CustomAssignor);
  
          // Test combination of short name and class.
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_ASSIGNORS_CONFIG, "uniform, " + CustomAssignor.class.getName());
          config = createConfig(configs);
          assignors = config.consumerGroupAssignors();
          assertEquals(2, assignors.size());
          assertTrue(assignors.get(0) instanceof UniformAssignor);
          assertTrue(assignors.get(1) instanceof CustomAssignor);
  
          // Test combination of short name and class.
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_ASSIGNORS_CONFIG, List.of("uniform", CustomAssignor.class.getName()));
          config = createConfig(configs);
          assignors = config.consumerGroupAssignors();
          assertEquals(2, assignors.size());
          assertTrue(assignors.get(0) instanceof UniformAssignor);
          assertTrue(assignors.get(1) instanceof CustomAssignor);
      }
  
      @Test
      public void testShareGroupAssignorFullClassNames() {
          // The full class name of the assignors is part of our public api. Hence,
          // we should ensure that they are not changed by mistake.
          assertEquals(
              "org.apache.kafka.coordinator.group.assignor.SimpleAssignor",
              SimpleAssignor.class.getName()
          );
      }
  
      @Test
      public void testShareGroupAssignors() {
          Map<String, Object> configs = new HashMap<>();
          GroupCoordinatorConfig config;
          List<ShareGroupPartitionAssignor> assignors;
  
          // Test default config.
          config = createConfig(configs);
          assignors = config.shareGroupAssignors();
          assertEquals(1, assignors.size());
  
          // Test short names.
          configs.put(GroupCoordinatorConfig.SHARE_GROUP_ASSIGNORS_CONFIG, "simple");
          config = createConfig(configs);
          assignors = config.shareGroupAssignors();
          assertEquals(1, assignors.size());
          assertInstanceOf(SimpleAssignor.class, assignors.get(0));
  
          // Test custom assignor.
          configs.put(GroupCoordinatorConfig.SHARE_GROUP_ASSIGNORS_CONFIG, CustomAssignor.class.getName());
          config = createConfig(configs);
          assignors = config.shareGroupAssignors();
          assertEquals(1, assignors.size());
          assertInstanceOf(CustomAssignor.class, assignors.get(0));
          assertNotNull(((CustomAssignor) assignors.get(0)).configs);
  
          // Test must contain only one assignor.
          configs.put(GroupCoordinatorConfig.SHARE_GROUP_ASSIGNORS_CONFIG, "simple, " + CustomAssignor.class.getName());
          assertEquals("group.share.assignors must contain exactly one assignor, but found 2",
              assertThrows(IllegalArgumentException.class, () -> createConfig(configs)).getMessage());
      }
  
      @Test
      public void testConfigs() {
          Map<String, Object> configs = new HashMap<>();
          configs.put(GroupCoordinatorConfig.GROUP_COORDINATOR_NUM_THREADS_CONFIG, 10);
          configs.put(GroupCoordinatorConfig.GROUP_COORDINATOR_APPEND_LINGER_MS_CONFIG, 10);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_SESSION_TIMEOUT_MS_CONFIG, 555);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_HEARTBEAT_INTERVAL_MS_CONFIG, 200);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MAX_SIZE_CONFIG, 55);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_ASSIGNORS_CONFIG, List.of(RangeAssignor.class));
          configs.put(GroupCoordinatorConfig.OFFSETS_TOPIC_SEGMENT_BYTES_CONFIG, 2222);
          configs.put(GroupCoordinatorConfig.OFFSET_METADATA_MAX_SIZE_CONFIG, 3333);
          configs.put(GroupCoordinatorConfig.GROUP_MAX_SIZE_CONFIG, 60);
          configs.put(GroupCoordinatorConfig.GROUP_INITIAL_REBALANCE_DELAY_MS_CONFIG, 3000);
          configs.put(GroupCoordinatorConfig.GROUP_MIN_SESSION_TIMEOUT_MS_CONFIG, 120);
          configs.put(GroupCoordinatorConfig.GROUP_MAX_SESSION_TIMEOUT_MS_CONFIG, 10 * 60 * 1000);
          configs.put(GroupCoordinatorConfig.OFFSETS_RETENTION_CHECK_INTERVAL_MS_CONFIG, 600000);
          configs.put(GroupCoordinatorConfig.OFFSETS_RETENTION_MINUTES_CONFIG, 24 * 60 * 60 * 1000);
          configs.put(GroupCoordinatorConfig.OFFSET_COMMIT_TIMEOUT_MS_CONFIG, 5000);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MIGRATION_POLICY_CONFIG, ConsumerGroupMigrationPolicy.DISABLED.name());
          configs.put(GroupCoordinatorConfig.OFFSETS_TOPIC_COMPRESSION_CODEC_CONFIG, (int) CompressionType.GZIP.id);
          configs.put(GroupCoordinatorConfig.OFFSETS_LOAD_BUFFER_SIZE_CONFIG, 555);
          configs.put(GroupCoordinatorConfig.OFFSETS_TOPIC_PARTITIONS_CONFIG, 111);
          configs.put(GroupCoordinatorConfig.OFFSETS_TOPIC_REPLICATION_FACTOR_CONFIG, (short) 11);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MIN_SESSION_TIMEOUT_MS_CONFIG, 333);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MAX_SESSION_TIMEOUT_MS_CONFIG, 666);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MIN_HEARTBEAT_INTERVAL_MS_CONFIG, 111);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MAX_HEARTBEAT_INTERVAL_MS_CONFIG, 222);
  
          GroupCoordinatorConfig config = createConfig(configs);
  
          assertEquals(10, config.numThreads());
          assertEquals(555, config.consumerGroupSessionTimeoutMs());
          assertEquals(200, config.consumerGroupHeartbeatIntervalMs());
          assertEquals(55, config.consumerGroupMaxSize());
          assertEquals(1, config.consumerGroupAssignors().size());
          assertEquals(RangeAssignor.NAME, config.consumerGroupAssignors().get(0).name());
          assertEquals(2222, config.offsetsTopicSegmentBytes());
          assertEquals(3333, config.offsetMetadataMaxSize());
          assertEquals(60, config.classicGroupMaxSize());
          assertEquals(3000, config.classicGroupInitialRebalanceDelayMs());
          assertEquals(5 * 60 * 1000, config.classicGroupNewMemberJoinTimeoutMs());
          assertEquals(120, config.classicGroupMinSessionTimeoutMs());
          assertEquals(10 * 60 * 1000, config.classicGroupMaxSessionTimeoutMs());
          assertEquals(10 * 60 * 1000, config.offsetsRetentionCheckIntervalMs());
          assertEquals(Duration.ofMinutes(24 * 60 * 60 * 1000L).toMillis(), config.offsetsRetentionMs());
          assertEquals(5000, config.offsetCommitTimeoutMs());
          assertEquals(CompressionType.GZIP, config.offsetTopicCompressionType());
          assertEquals(10, config.appendLingerMs());
          assertEquals(555, config.offsetsLoadBufferSize());
          assertEquals(111, config.offsetsTopicPartitions());
          assertEquals(11, config.offsetsTopicReplicationFactor());
          assertEquals(333, config.consumerGroupMinSessionTimeoutMs());
          assertEquals(666, config.consumerGroupMaxSessionTimeoutMs());
          assertEquals(111, config.consumerGroupMinHeartbeatIntervalMs());
          assertEquals(222, config.consumerGroupMaxHeartbeatIntervalMs());
      }
  
      @Test
      public void testInvalidConfigs() {
          Map<String, Object> configs = new HashMap<>();
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MAX_HEARTBEAT_INTERVAL_MS_CONFIG, 10);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MIN_HEARTBEAT_INTERVAL_MS_CONFIG, 20);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_HEARTBEAT_INTERVAL_MS_CONFIG, 20);
          assertEquals("group.consumer.max.heartbeat.interval.ms must be greater than or equal to group.consumer.min.heartbeat.interval.ms",
                  assertThrows(IllegalArgumentException.class, () -> createConfig(configs)).getMessage());
  
          configs.clear();
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MAX_HEARTBEAT_INTERVAL_MS_CONFIG, 30);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MIN_HEARTBEAT_INTERVAL_MS_CONFIG, 20);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_HEARTBEAT_INTERVAL_MS_CONFIG, 10);
          assertEquals("group.consumer.heartbeat.interval.ms must be greater than or equal to group.consumer.min.heartbeat.interval.ms",
                  assertThrows(IllegalArgumentException.class, () -> createConfig(configs)).getMessage());
  
          configs.clear();
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MAX_HEARTBEAT_INTERVAL_MS_CONFIG, 30);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MIN_HEARTBEAT_INTERVAL_MS_CONFIG, 20);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_HEARTBEAT_INTERVAL_MS_CONFIG, 40);
          assertEquals("group.consumer.heartbeat.interval.ms must be less than or equal to group.consumer.max.heartbeat.interval.ms",
                  assertThrows(IllegalArgumentException.class, () -> createConfig(configs)).getMessage());
  
          configs.clear();
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MAX_SESSION_TIMEOUT_MS_CONFIG, 10);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MIN_SESSION_TIMEOUT_MS_CONFIG, 20);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_SESSION_TIMEOUT_MS_CONFIG, 20);
          assertEquals("group.consumer.max.session.timeout.ms must be greater than or equal to group.consumer.min.session.timeout.ms",
                  assertThrows(IllegalArgumentException.class, () -> createConfig(configs)).getMessage());
  
          configs.clear();
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MAX_SESSION_TIMEOUT_MS_CONFIG, 30);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MIN_SESSION_TIMEOUT_MS_CONFIG, 20);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_SESSION_TIMEOUT_MS_CONFIG, 10);
          assertEquals("group.consumer.session.timeout.ms must be greater than or equal to group.consumer.min.session.timeout.ms",
                  assertThrows(IllegalArgumentException.class, () -> createConfig(configs)).getMessage());
  
          configs.clear();
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MAX_SESSION_TIMEOUT_MS_CONFIG, 30);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MIN_SESSION_TIMEOUT_MS_CONFIG, 20);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_SESSION_TIMEOUT_MS_CONFIG, 40);
          assertEquals("group.consumer.session.timeout.ms must be less than or equal to group.consumer.max.session.timeout.ms",
                  assertThrows(IllegalArgumentException.class, () -> createConfig(configs)).getMessage());
  
          configs.clear();
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_ASSIGNORS_CONFIG, Object.class);
          assertEquals("Invalid value class java.lang.Object for configuration group.consumer.assignors: Expected a comma separated list.",
                  assertThrows(ConfigException.class, () -> createConfig(configs)).getMessage());
  
          configs.clear();
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_ASSIGNORS_CONFIG, List.of(Object.class));
          assertEquals("class java.lang.Object is not an instance of org.apache.kafka.coordinator.group.api.assignor.ConsumerGroupPartitionAssignor",
                  assertThrows(KafkaException.class, () -> createConfig(configs)).getMessage());
  
          configs.clear();
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_ASSIGNORS_CONFIG, Object.class.getName());
          assertEquals("java.lang.Object is not an instance of org.apache.kafka.coordinator.group.api.assignor.ConsumerGroupPartitionAssignor",
              assertThrows(KafkaException.class, () -> createConfig(configs)).getMessage());
  
          configs.clear();
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_ASSIGNORS_CONFIG, "foo");
          assertEquals("Class foo cannot be found",
              assertThrows(KafkaException.class, () -> createConfig(configs)).getMessage());
  
          configs.clear();
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MIGRATION_POLICY_CONFIG, "foobar");
          assertEquals("Invalid value foobar for configuration group.consumer.migration.policy: String must be one of (case insensitive): DISABLED, DOWNGRADE, UPGRADE, BIDIRECTIONAL",
                  assertThrows(ConfigException.class, () -> createConfig(configs)).getMessage());
  
          configs.clear();
          configs.put(GroupCoordinatorConfig.OFFSETS_TOPIC_COMPRESSION_CODEC_CONFIG, -100);
          assertEquals("Unknown compression type id: -100",
                  assertThrows(IllegalArgumentException.class, () -> createConfig(configs)).getMessage());
  
          configs.clear();
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MIN_HEARTBEAT_INTERVAL_MS_CONFIG, 45000);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MAX_HEARTBEAT_INTERVAL_MS_CONFIG, 60000);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_HEARTBEAT_INTERVAL_MS_CONFIG, 50000);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_SESSION_TIMEOUT_MS_CONFIG, 50000);
          assertEquals("group.consumer.heartbeat.interval.ms must be less than group.consumer.session.timeout.ms",
                  assertThrows(IllegalArgumentException.class, () -> createConfig(configs)).getMessage());
  
          configs.clear();
          configs.put(GroupCoordinatorConfig.SHARE_GROUP_MIN_HEARTBEAT_INTERVAL_MS_CONFIG, 45000);
          configs.put(GroupCoordinatorConfig.SHARE_GROUP_MAX_HEARTBEAT_INTERVAL_MS_CONFIG, 60000);
          configs.put(GroupCoordinatorConfig.SHARE_GROUP_HEARTBEAT_INTERVAL_MS_CONFIG, 50000);
          configs.put(GroupCoordinatorConfig.SHARE_GROUP_SESSION_TIMEOUT_MS_CONFIG, 50000);
          assertEquals("group.share.heartbeat.interval.ms must be less than group.share.session.timeout.ms",
                  assertThrows(IllegalArgumentException.class, () -> createConfig(configs)).getMessage());
  
          configs.clear();
          configs.put(GroupCoordinatorConfig.STREAMS_GROUP_MIN_HEARTBEAT_INTERVAL_MS_CONFIG, 45000);
          configs.put(GroupCoordinatorConfig.STREAMS_GROUP_MAX_HEARTBEAT_INTERVAL_MS_CONFIG, 60000);
          configs.put(GroupCoordinatorConfig.STREAMS_GROUP_HEARTBEAT_INTERVAL_MS_CONFIG, 50000);
          configs.put(GroupCoordinatorConfig.STREAMS_GROUP_SESSION_TIMEOUT_MS_CONFIG, 50000);
          assertEquals("group.streams.heartbeat.interval.ms must be less than group.streams.session.timeout.ms",
              assertThrows(IllegalArgumentException.class, () -> createConfig(configs)).getMessage());
      }
  
      public static GroupCoordinatorConfig createGroupCoordinatorConfig(
          int offsetMetadataMaxSize,
          long offsetsRetentionCheckIntervalMs,
          int offsetsRetentionMinutes
      ) {
          Map<String, Object> configs = new HashMap<>();
          configs.put(GroupCoordinatorConfig.GROUP_COORDINATOR_NUM_THREADS_CONFIG, 1);
          configs.put(GroupCoordinatorConfig.GROUP_COORDINATOR_APPEND_LINGER_MS_CONFIG, 10);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_SESSION_TIMEOUT_MS_CONFIG, 45);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MIN_SESSION_TIMEOUT_MS_CONFIG, 45);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_HEARTBEAT_INTERVAL_MS_CONFIG, 5);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MIN_HEARTBEAT_INTERVAL_MS_CONFIG, 5);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MAX_SIZE_CONFIG, Integer.MAX_VALUE);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_ASSIGNORS_CONFIG, List.of(RangeAssignor.class));
          configs.put(GroupCoordinatorConfig.OFFSETS_TOPIC_SEGMENT_BYTES_CONFIG, 1000);
          configs.put(GroupCoordinatorConfig.OFFSET_METADATA_MAX_SIZE_CONFIG, offsetMetadataMaxSize);
          configs.put(GroupCoordinatorConfig.GROUP_MAX_SIZE_CONFIG, Integer.MAX_VALUE);
          configs.put(GroupCoordinatorConfig.GROUP_INITIAL_REBALANCE_DELAY_MS_CONFIG, 3000);
          configs.put(GroupCoordinatorConfig.GROUP_MIN_SESSION_TIMEOUT_MS_CONFIG, 120);
          configs.put(GroupCoordinatorConfig.GROUP_MAX_SESSION_TIMEOUT_MS_CONFIG, 10 * 5 * 1000);
          configs.put(GroupCoordinatorConfig.OFFSETS_RETENTION_CHECK_INTERVAL_MS_CONFIG, offsetsRetentionCheckIntervalMs);
          configs.put(GroupCoordinatorConfig.OFFSETS_RETENTION_MINUTES_CONFIG, offsetsRetentionMinutes);
          configs.put(GroupCoordinatorConfig.OFFSET_COMMIT_TIMEOUT_MS_CONFIG, 5000);
          configs.put(GroupCoordinatorConfig.CONSUMER_GROUP_MIGRATION_POLICY_CONFIG, ConsumerGroupMigrationPolicy.DISABLED.name());
          configs.put(GroupCoordinatorConfig.OFFSETS_TOPIC_COMPRESSION_CODEC_CONFIG, (int) CompressionType.NONE.id);
          configs.put(GroupCoordinatorConfig.SHARE_GROUP_SESSION_TIMEOUT_MS_CONFIG, 45);
          configs.put(GroupCoordinatorConfig.SHARE_GROUP_MIN_SESSION_TIMEOUT_MS_CONFIG, 45);
          configs.put(GroupCoordinatorConfig.SHARE_GROUP_HEARTBEAT_INTERVAL_MS_CONFIG, 5);
          configs.put(GroupCoordinatorConfig.SHARE_GROUP_MIN_HEARTBEAT_INTERVAL_MS_CONFIG, 5);
          configs.put(GroupCoordinatorConfig.SHARE_GROUP_MAX_SIZE_CONFIG, 1000);
  
          return createConfig(configs);
      }
  
      public static GroupCoordinatorConfig createConfig(Map<String, Object> configs) {
          return new GroupCoordinatorConfig(new AbstractConfig(
              GroupCoordinatorConfig.CONFIG_DEF,
              configs,
              false
          ));
      }
  }
  