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.tools.consumer.group;
  
  
  import org.apache.kafka.clients.admin.Admin;
  import org.apache.kafka.clients.admin.AdminClientTestUtils;
  import org.apache.kafka.clients.admin.DeleteShareGroupOffsetsResult;
  import org.apache.kafka.clients.admin.DeleteShareGroupsResult;
  import org.apache.kafka.clients.admin.DescribeShareGroupsOptions;
  import org.apache.kafka.clients.admin.DescribeShareGroupsResult;
  import org.apache.kafka.clients.admin.GroupListing;
  import org.apache.kafka.clients.admin.KafkaAdminClient;
  import org.apache.kafka.clients.admin.ListGroupsOptions;
  import org.apache.kafka.clients.admin.ListGroupsResult;
  import org.apache.kafka.clients.admin.ListShareGroupOffsetsResult;
  import org.apache.kafka.clients.admin.MockAdminClient;
  import org.apache.kafka.clients.admin.ShareGroupDescription;
  import org.apache.kafka.clients.admin.ShareMemberAssignment;
  import org.apache.kafka.clients.admin.ShareMemberDescription;
  import org.apache.kafka.clients.consumer.OffsetAndMetadata;
  import org.apache.kafka.common.GroupState;
  import org.apache.kafka.common.GroupType;
  import org.apache.kafka.common.KafkaFuture;
  import org.apache.kafka.common.Node;
  import org.apache.kafka.common.TopicPartition;
  import org.apache.kafka.common.errors.GroupIdNotFoundException;
  import org.apache.kafka.common.internals.KafkaFutureImpl;
  import org.apache.kafka.common.protocol.Errors;
  import org.apache.kafka.common.utils.Exit;
  import org.apache.kafka.test.TestUtils;
  import org.apache.kafka.tools.ToolsTestUtils;
  import org.apache.kafka.tools.consumer.group.ShareGroupCommand.ShareGroupService;
  
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.mockito.ArgumentMatchers;
  
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.Collection;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.LinkedHashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.Map.Entry;
  import java.util.Objects;
  import java.util.Optional;
  import java.util.Set;
  import java.util.concurrent.ExecutionException;
  import java.util.concurrent.atomic.AtomicBoolean;
  import java.util.stream.Stream;
  
  import joptsimple.OptionException;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertInstanceOf;
  import static org.junit.jupiter.api.Assertions.assertNotEquals;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  import static org.junit.jupiter.api.Assertions.fail;
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.ArgumentMatchers.anyList;
  import static org.mockito.ArgumentMatchers.eq;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  public class ShareGroupCommandTest {
      private static final List<List<String>> DESCRIBE_TYPE_OFFSETS = List.of(List.of(""), List.of("--offsets"), List.of("--verbose"), List.of("--offsets", "--verbose"));
      private static final List<List<String>> DESCRIBE_TYPE_MEMBERS = List.of(List.of("--members"), List.of("--members", "--verbose"));
      private static final List<List<String>> DESCRIBE_TYPE_STATE = List.of(List.of("--state"), List.of("--state", "--verbose"));
      private static final List<List<String>> DESCRIBE_TYPES = Stream.of(DESCRIBE_TYPE_OFFSETS, DESCRIBE_TYPE_MEMBERS, DESCRIBE_TYPE_STATE).flatMap(Collection::stream).toList();
  
      @BeforeEach
      public void setup() {
          // nothing by default
          Exit.setExitProcedure(((statusCode, message) -> {
          }));
      }
  
      @AfterEach
      public void teardown() {
          Exit.resetExitProcedure();
      }
  
      @Test
      public void testListShareGroups() throws Exception {
          String firstGroup = "first-group";
          String secondGroup = "second-group";
          String bootstrapServer = "localhost:9092";
  
          String[] cgcArgs = new String[]{"--bootstrap-server", bootstrapServer, "--list"};
          Admin adminClient = mock(KafkaAdminClient.class);
          ListGroupsResult result = mock(ListGroupsResult.class);
          when(result.all()).thenReturn(KafkaFuture.completedFuture(Arrays.asList(
                  new GroupListing(firstGroup, Optional.of(GroupType.SHARE), "share", Optional.of(GroupState.STABLE)),
                  new GroupListing(secondGroup, Optional.of(GroupType.SHARE), "share", Optional.of(GroupState.EMPTY))
          )));
  
          when(adminClient.listGroups(any(ListGroupsOptions.class))).thenReturn(result);
          try (ShareGroupService service = getShareGroupService(cgcArgs, adminClient)) {
              Set<String> expectedGroups = new HashSet<>(Arrays.asList(firstGroup, secondGroup));
  
              final Set[] foundGroups = new Set[]{Set.of()};
              TestUtils.waitForCondition(() -> {
                  foundGroups[0] = new HashSet<>(service.listShareGroups());
                  return Objects.equals(expectedGroups, foundGroups[0]);
              }, "Expected --list to show groups " + expectedGroups + ", but found " + foundGroups[0] + ".");
          }
      }
  
      @Test
      public void testListShareGroupsWithStates() throws Exception {
          String firstGroup = "first-group";
          String secondGroup = "second-group";
          String bootstrapServer = "localhost:9092";
  
          String[] cgcArgs = new String[]{"--bootstrap-server", bootstrapServer, "--list", "--state"};
          Admin adminClient = mock(KafkaAdminClient.class);
          ListGroupsResult resultWithAllStates = mock(ListGroupsResult.class);
          when(resultWithAllStates.all()).thenReturn(KafkaFuture.completedFuture(Arrays.asList(
              new GroupListing(firstGroup, Optional.of(GroupType.SHARE), "share", Optional.of(GroupState.STABLE)),
              new GroupListing(secondGroup, Optional.of(GroupType.SHARE), "share", Optional.of(GroupState.EMPTY))
          )));
          when(adminClient.listGroups(any(ListGroupsOptions.class))).thenReturn(resultWithAllStates);
          try (ShareGroupService service = getShareGroupService(cgcArgs, adminClient)) {
              Set<GroupListing> expectedListing = new HashSet<>(Arrays.asList(
                  new GroupListing(firstGroup, Optional.of(GroupType.SHARE), "share", Optional.of(GroupState.STABLE)),
                  new GroupListing(secondGroup, Optional.of(GroupType.SHARE), "share", Optional.of(GroupState.EMPTY))));
  
              final Set[] foundListing = new Set[]{Set.of()};
              TestUtils.waitForCondition(() -> {
                  foundListing[0] = new HashSet<>(service.listShareGroupsInStates(new HashSet<>(Arrays.asList(GroupState.values()))));
                  return Objects.equals(expectedListing, foundListing[0]);
              }, "Expected to show groups " + expectedListing + ", but found " + foundListing[0]);
  
              ListGroupsResult resultWithStableState = mock(ListGroupsResult.class);
              when(resultWithStableState.all()).thenReturn(KafkaFuture.completedFuture(List.of(
                  new GroupListing(firstGroup, Optional.of(GroupType.SHARE), "share", Optional.of(GroupState.STABLE))
              )));
              when(adminClient.listGroups(any(ListGroupsOptions.class))).thenReturn(resultWithStableState);
              Set<GroupListing> expectedListingStable = Set.of(
                  new GroupListing(firstGroup, Optional.of(GroupType.SHARE), "share", Optional.of(GroupState.STABLE)));
  
              foundListing[0] = Set.of();
  
              TestUtils.waitForCondition(() -> {
                  foundListing[0] = new HashSet<>(service.listShareGroupsInStates(Set.of(GroupState.STABLE)));
                  return Objects.equals(expectedListingStable, foundListing[0]);
              }, "Expected to show groups " + expectedListingStable + ", but found " + foundListing[0]);
          }
      }
  
      @Test
      public void testDescribeOffsetsOfExistingGroup() throws Exception {
          String firstGroup = "group1";
          String bootstrapServer = "localhost:9092";
  
          for (List<String> describeType : DESCRIBE_TYPE_OFFSETS) {
              List<String> cgcArgs = new ArrayList<>(List.of("--bootstrap-server", bootstrapServer, "--describe", "--group", firstGroup));
              cgcArgs.addAll(describeType);
              Admin adminClient = mock(KafkaAdminClient.class);
              DescribeShareGroupsResult describeShareGroupsResult = mock(DescribeShareGroupsResult.class);
              ShareGroupDescription exp = new ShareGroupDescription(
                  firstGroup,
                  List.of(new ShareMemberDescription("memid1", "clId1", "host1", new ShareMemberAssignment(
                      Set.of(new TopicPartition("topic1", 0))
                  ), 0)),
                  GroupState.STABLE,
                  new Node(0, "host1", 9090), 0, 0);
              ListShareGroupOffsetsResult listShareGroupOffsetsResult = AdminClientTestUtils.createListShareGroupOffsetsResult(
                  Map.of(
                      firstGroup,
                      KafkaFuture.completedFuture(Map.of(new TopicPartition("topic1", 0), new OffsetAndMetadata(0L, Optional.of(1), "")))
                  )
              );
  
              when(describeShareGroupsResult.describedGroups()).thenReturn(Map.of(firstGroup, KafkaFuture.completedFuture(exp)));
              when(adminClient.describeShareGroups(ArgumentMatchers.anyCollection(), any(DescribeShareGroupsOptions.class))).thenReturn(describeShareGroupsResult);
              when(adminClient.listShareGroupOffsets(ArgumentMatchers.anyMap())).thenReturn(listShareGroupOffsetsResult);
              try (ShareGroupService service = getShareGroupService(cgcArgs.toArray(new String[0]), adminClient)) {
                  TestUtils.waitForCondition(() -> {
                      Entry<String, String> res = ToolsTestUtils.grabConsoleOutputAndError(describeGroups(service));
                      String[] lines = res.getKey().trim().split("\n");
                      if (lines.length != 2 && !res.getValue().isEmpty()) {
                          return false;
                      }
  
                      List<String> expectedValues;
                      if (describeType.contains("--verbose")) {
                          expectedValues = List.of(firstGroup, "topic1", "0", "1", "0");
                      } else {
                          expectedValues = List.of(firstGroup, "topic1", "0", "0");
                      }
                      return checkArgsHeaderOutput(cgcArgs, lines[0]) &&
                          Arrays.stream(lines[1].trim().split("\\s+")).toList().equals(expectedValues);
                  }, "Expected a data row and no error in describe results with describe type " + String.join(" ", describeType) + ".");
              }
          }
      }
  
      @Test
      public void testDescribeOffsetsOfExistingGroupWithNulls() throws Exception {
          String firstGroup = "group1";
          String bootstrapServer = "localhost:9092";
  
          for (List<String> describeType : DESCRIBE_TYPE_OFFSETS) {
              List<String> cgcArgs = new ArrayList<>(List.of("--bootstrap-server", bootstrapServer, "--describe", "--group", firstGroup));
              cgcArgs.addAll(describeType);
              Admin adminClient = mock(KafkaAdminClient.class);
              DescribeShareGroupsResult describeShareGroupsResult = mock(DescribeShareGroupsResult.class);
              ShareGroupDescription exp = new ShareGroupDescription(
                  firstGroup,
                  List.of(new ShareMemberDescription("memid1", "clId1", "host1", new ShareMemberAssignment(
                      Set.of(new TopicPartition("topic1", 0))
                  ), 0)),
                  GroupState.STABLE,
                  new Node(0, "host1", 9090), 0, 0);
              // The null here indicates a topic-partition for which offset information could not be retrieved, typically due to an error
              ListShareGroupOffsetsResult listShareGroupOffsetsResult = AdminClientTestUtils.createListShareGroupOffsetsResult(
                  Map.of(
                      firstGroup,
                      KafkaFuture.completedFuture(Collections.singletonMap(new TopicPartition("topic1", 0), null))
                  )
              );
  
              when(describeShareGroupsResult.describedGroups()).thenReturn(Map.of(firstGroup, KafkaFuture.completedFuture(exp)));
              when(adminClient.describeShareGroups(ArgumentMatchers.anyCollection(), any(DescribeShareGroupsOptions.class))).thenReturn(describeShareGroupsResult);
              when(adminClient.listShareGroupOffsets(ArgumentMatchers.anyMap())).thenReturn(listShareGroupOffsetsResult);
              try (ShareGroupService service = getShareGroupService(cgcArgs.toArray(new String[0]), adminClient)) {
                  TestUtils.waitForCondition(() -> {
                      Entry<String, String> res = ToolsTestUtils.grabConsoleOutputAndError(describeGroups(service));
                      String[] lines = res.getKey().trim().split("\n");
                      if (lines.length != 2 && !res.getValue().isEmpty()) {
                          return false;
                      }
  
                      List<String> expectedValues;
                      if (describeType.contains("--verbose")) {
                          expectedValues = List.of(firstGroup, "topic1", "0", "-", "-");
                      } else {
                          expectedValues = List.of(firstGroup, "topic1", "0", "-");
                      }
                      return checkArgsHeaderOutput(cgcArgs, lines[0]) &&
                          Arrays.stream(lines[1].trim().split("\\s+")).toList().equals(expectedValues);
                  }, "Expected a data row and no error in describe results with describe type " + String.join(" ", describeType) + ".");
              }
          }
      }
  
      @Test
      public void testDescribeOffsetsOfAllExistingGroups() throws Exception {
          String firstGroup = "group1";
          String secondGroup = "group2";
          String bootstrapServer = "localhost:9092";
  
          for (List<String> describeType : DESCRIBE_TYPE_OFFSETS) {
              List<String> cgcArgs = new ArrayList<>(List.of("--bootstrap-server", bootstrapServer, "--describe", "--all-groups"));
              cgcArgs.addAll(describeType);
              Admin adminClient = mock(KafkaAdminClient.class);
              ListGroupsResult listGroupsResult = mock(ListGroupsResult.class);
              GroupListing firstGroupListing = new GroupListing(firstGroup, Optional.of(GroupType.SHARE), "share", Optional.of(GroupState.STABLE));
              GroupListing secondGroupListing = new GroupListing(secondGroup, Optional.of(GroupType.SHARE), "share", Optional.of(GroupState.STABLE));
              DescribeShareGroupsResult describeShareGroupsResult = mock(DescribeShareGroupsResult.class);
              ShareGroupDescription exp1 = new ShareGroupDescription(
                  firstGroup,
                  List.of(new ShareMemberDescription("memid1", "clId1", "host1", new ShareMemberAssignment(
                      Set.of(new TopicPartition("topic1", 0))
                  ), 0)),
                  GroupState.STABLE,
                  new Node(0, "host1", 9090), 0, 0);
              ShareGroupDescription exp2 = new ShareGroupDescription(
                  secondGroup,
                  List.of(new ShareMemberDescription("memid1", "clId1", "host1", new ShareMemberAssignment(
                      Set.of(new TopicPartition("topic1", 0))
                  ), 0)),
                  GroupState.STABLE,
                  new Node(0, "host1", 9090), 0, 0);
              ListShareGroupOffsetsResult listShareGroupOffsetsResult1 = AdminClientTestUtils.createListShareGroupOffsetsResult(
                  Map.of(
                      firstGroup,
                      KafkaFuture.completedFuture(Map.of(new TopicPartition("topic1", 0), new OffsetAndMetadata(0, Optional.of(1), "")))
                  )
              );
              ListShareGroupOffsetsResult listShareGroupOffsetsResult2 = AdminClientTestUtils.createListShareGroupOffsetsResult(
                  Map.of(
                      secondGroup,
                      KafkaFuture.completedFuture(Map.of(new TopicPartition("topic1", 0), new OffsetAndMetadata(0, Optional.of(1), "")))
                  )
              );
  
              when(listGroupsResult.all()).thenReturn(KafkaFuture.completedFuture(List.of(firstGroupListing, secondGroupListing)));
              when(adminClient.listGroups(any(ListGroupsOptions.class))).thenReturn(listGroupsResult);
              when(describeShareGroupsResult.describedGroups()).thenReturn(Map.of(firstGroup, KafkaFuture.completedFuture(exp1), secondGroup, KafkaFuture.completedFuture(exp2)));
              when(adminClient.describeShareGroups(ArgumentMatchers.anyCollection(), any(DescribeShareGroupsOptions.class))).thenReturn(describeShareGroupsResult);
              when(adminClient.listShareGroupOffsets(ArgumentMatchers.anyMap())).thenAnswer(
                  invocation -> {
                      Map<String, Object> argument = invocation.getArgument(0);
                      if (argument.containsKey(firstGroup)) {
                          return listShareGroupOffsetsResult1;
                      } else if (argument.containsKey(secondGroup)) {
                          return listShareGroupOffsetsResult2;
                      }
                      return null;
                  });
              try (ShareGroupService service = getShareGroupService(cgcArgs.toArray(new String[0]), adminClient)) {
                  TestUtils.waitForCondition(() -> {
                      Entry<String, String> res = ToolsTestUtils.grabConsoleOutputAndError(describeGroups(service));
                      String[] lines = res.getKey().trim().split("\n");
                      if (lines.length != 2 && !res.getValue().isEmpty()) {
                          return false;
                      }
  
                      List<String> expectedValues1, expectedValues2;
                      if (describeType.contains("--verbose")) {
                          expectedValues1 = List.of(firstGroup, "topic1", "0", "1", "0");
                          expectedValues2 = List.of(secondGroup, "topic1", "0", "1", "0");
                      } else {
                          expectedValues1 = List.of(firstGroup, "topic1", "0", "0");
                          expectedValues2 = List.of(secondGroup, "topic1", "0", "0");
                      }
                      return checkArgsHeaderOutput(cgcArgs, lines[0]) && checkArgsHeaderOutput(cgcArgs, lines[3]) &&
                          Arrays.stream(lines[1].trim().split("\\s+")).toList().equals(expectedValues1) &&
                          Arrays.stream(lines[4].trim().split("\\s+")).toList().equals(expectedValues2);
                  }, "Expected 2 data rows and no error in describe results with describe type " + String.join(" ", describeType) + ".");
              }
          }
      }
  
      @Test
      public void testDescribeStateOfExistingGroup() throws Exception {
          String firstGroup = "group1";
          String bootstrapServer = "localhost:9092";
  
          for (List<String> describeType : DESCRIBE_TYPE_STATE) {
              List<String> cgcArgs = new ArrayList<>(List.of("--bootstrap-server", bootstrapServer, "--describe", "--group", firstGroup));
              cgcArgs.addAll(describeType);
              Admin adminClient = mock(KafkaAdminClient.class);
              DescribeShareGroupsResult describeShareGroupsResult = mock(DescribeShareGroupsResult.class);
              ShareGroupDescription exp1 = new ShareGroupDescription(
                  firstGroup,
                  List.of(new ShareMemberDescription("memid1", "clId1", "host1", new ShareMemberAssignment(
                      Set.of(new TopicPartition("topic1", 0))
                  ), 0)),
                  GroupState.STABLE,
                  new Node(0, "host1", 9090), 0, 0);
  
              when(describeShareGroupsResult.describedGroups()).thenReturn(Map.of(firstGroup, KafkaFuture.completedFuture(exp1)));
              when(adminClient.describeShareGroups(ArgumentMatchers.anyCollection(), any(DescribeShareGroupsOptions.class))).thenReturn(describeShareGroupsResult);
              try (ShareGroupService service = getShareGroupService(cgcArgs.toArray(new String[0]), adminClient)) {
                  TestUtils.waitForCondition(() -> {
                      Entry<String, String> res = ToolsTestUtils.grabConsoleOutputAndError(describeGroups(service));
                      String[] lines = res.getKey().trim().split("\n");
                      if (lines.length != 2 && !res.getValue().isEmpty()) {
                          return false;
                      }
  
                      List<String> expectedValues1;
                      if (describeType.contains("--verbose")) {
                          expectedValues1 = List.of(firstGroup, "host1:9090", "(0)", "Stable", "0", "0", "1");
  
                      } else {
                          expectedValues1 = List.of(firstGroup, "host1:9090", "(0)", "Stable", "1");
                      }
                      return checkArgsHeaderOutput(cgcArgs, lines[0]) &&
                          Arrays.stream(lines[1].trim().split("\\s+")).toList().equals(expectedValues1);
                  }, "Expected a data row and no error in describe results with describe type " + String.join(" ", describeType) + ".");
              }
          }
      }
  
      @Test
      public void testDescribeStatesOfAllExistingGroups() throws Exception {
          String firstGroup = "group1";
          String secondGroup = "group2";
          String bootstrapServer = "localhost:9092";
  
          for (List<String> describeType : DESCRIBE_TYPE_STATE) {
              List<String> cgcArgs = new ArrayList<>(List.of("--bootstrap-server", bootstrapServer, "--describe", "--all-groups"));
              cgcArgs.addAll(describeType);
              Admin adminClient = mock(KafkaAdminClient.class);
              ListGroupsResult listGroupsResult = mock(ListGroupsResult.class);
              GroupListing firstGroupListing = new GroupListing(firstGroup, Optional.of(GroupType.SHARE), "share", Optional.of(GroupState.STABLE));
              GroupListing secondGroupListing = new GroupListing(secondGroup, Optional.of(GroupType.SHARE), "share", Optional.of(GroupState.STABLE));
              DescribeShareGroupsResult describeShareGroupsResult = mock(DescribeShareGroupsResult.class);
              ShareGroupDescription exp1 = new ShareGroupDescription(
                  firstGroup,
                  List.of(new ShareMemberDescription("memid1", "clId1", "host1", new ShareMemberAssignment(
                      Set.of(new TopicPartition("topic1", 0))
                  ), 0)),
                  GroupState.STABLE,
                  new Node(0, "host1", 9090), 0, 0);
              ShareGroupDescription exp2 = new ShareGroupDescription(
                  secondGroup,
                  List.of(new ShareMemberDescription("memid1", "clId1", "host1", new ShareMemberAssignment(
                      Set.of(new TopicPartition("topic1", 0))
                  ), 0)),
                  GroupState.STABLE,
                  new Node(0, "host1", 9090), 0, 0);
  
              when(listGroupsResult.all()).thenReturn(KafkaFuture.completedFuture(List.of(firstGroupListing, secondGroupListing)));
              when(adminClient.listGroups(any(ListGroupsOptions.class))).thenReturn(listGroupsResult);
              when(describeShareGroupsResult.describedGroups()).thenReturn(Map.of(firstGroup, KafkaFuture.completedFuture(exp1), secondGroup, KafkaFuture.completedFuture(exp2)));
              when(adminClient.describeShareGroups(ArgumentMatchers.anyCollection(), any(DescribeShareGroupsOptions.class))).thenReturn(describeShareGroupsResult);
              try (ShareGroupService service = getShareGroupService(cgcArgs.toArray(new String[0]), adminClient)) {
                  TestUtils.waitForCondition(() -> {
                      Entry<String, String> res = ToolsTestUtils.grabConsoleOutputAndError(describeGroups(service));
                      String[] lines = res.getKey().trim().split("\n");
                      if (lines.length != 2 && !res.getValue().isEmpty()) {
                          return false;
                      }
  
                      List<String> expectedValues1;
                      List<String> expectedValues2;
                      if (describeType.contains("--verbose")) {
                          expectedValues1 = List.of(firstGroup, "host1:9090", "(0)", "Stable", "0", "0", "1");
                          expectedValues2 = List.of(secondGroup, "host1:9090", "(0)", "Stable", "0", "0", "1");
  
                      } else {
                          expectedValues1 = List.of(firstGroup, "host1:9090", "(0)", "Stable", "1");
                          expectedValues2 = List.of(secondGroup, "host1:9090", "(0)", "Stable", "1");
                      }
                      return checkArgsHeaderOutput(cgcArgs, lines[0]) && checkArgsHeaderOutput(cgcArgs, lines[3]) &&
                          Arrays.stream(lines[1].trim().split("\\s+")).toList().equals(expectedValues1) &&
                          Arrays.stream(lines[4].trim().split("\\s+")).toList().equals(expectedValues2);
                  }, "Expected 2 data rows and no error in describe results with describe type " + String.join(" ", describeType) + ".");
              }
          }
      }
  
      @Test
      public void testDescribeMembersOfExistingGroup() throws Exception {
          String firstGroup = "group1";
          String bootstrapServer = "localhost:9092";
  
          for (List<String> describeType : DESCRIBE_TYPE_MEMBERS) {
              List<String> cgcArgs = new ArrayList<>(List.of("--bootstrap-server", bootstrapServer, "--describe", "--group", firstGroup));
              cgcArgs.addAll(describeType);
              Admin adminClient = mock(KafkaAdminClient.class);
              DescribeShareGroupsResult describeShareGroupsResult = mock(DescribeShareGroupsResult.class);
              ShareGroupDescription exp1 = new ShareGroupDescription(
                  firstGroup,
                  List.of(new ShareMemberDescription("memid1", "clId1", "host1", new ShareMemberAssignment(
                      Set.of(new TopicPartition("topic1", 0), new TopicPartition("topic1", 1), new TopicPartition("topic2", 0))
                  ), 0)),
                  GroupState.STABLE,
                  new Node(0, "host1", 9090), 0, 0);
  
              when(describeShareGroupsResult.describedGroups()).thenReturn(Map.of(firstGroup, KafkaFuture.completedFuture(exp1)));
              when(adminClient.describeShareGroups(ArgumentMatchers.anyCollection(), any(DescribeShareGroupsOptions.class))).thenReturn(describeShareGroupsResult);
              try (ShareGroupService service = getShareGroupService(cgcArgs.toArray(new String[0]), adminClient)) {
                  TestUtils.waitForCondition(() -> {
                      Entry<String, String> res = ToolsTestUtils.grabConsoleOutputAndError(describeGroups(service));
                      String[] lines = res.getKey().trim().split("\n");
                      if (lines.length != 2 && !res.getValue().isEmpty()) {
                          return false;
                      }
  
                      List<String> expectedValues1;
                      if (describeType.contains("--verbose")) {
                          expectedValues1 = List.of(firstGroup, "memid1", "host1", "clId1", "3", "0", "topic1:0,1;topic2:0");
  
                      } else {
                          expectedValues1 = List.of(firstGroup, "memid1", "host1", "clId1", "3", "topic1:0,1;topic2:0");
                      }
                      return checkArgsHeaderOutput(cgcArgs, lines[0]) &&
                          Arrays.stream(lines[1].trim().split("\\s+")).toList().equals(expectedValues1);
                  }, "Expected a data row and no error in describe results with describe type " + String.join(" ", describeType) + ".");
              }
          }
      }
  
      @Test
      public void testDescribeMembersOfAllExistingGroups() throws Exception {
          String firstGroup = "group1";
          String secondGroup = "group2";
          String bootstrapServer = "localhost:9092";
  
          for (List<String> describeType : DESCRIBE_TYPE_MEMBERS) {
              List<String> cgcArgs = new ArrayList<>(List.of("--bootstrap-server", bootstrapServer, "--describe", "--all-groups"));
              cgcArgs.addAll(describeType);
              Admin adminClient = mock(KafkaAdminClient.class);
              ListGroupsResult listGroupsResult = mock(ListGroupsResult.class);
              GroupListing firstGroupListing = new GroupListing(firstGroup, Optional.of(GroupType.SHARE), "share", Optional.of(GroupState.STABLE));
              GroupListing secondGroupListing = new GroupListing(secondGroup, Optional.of(GroupType.SHARE), "share", Optional.of(GroupState.STABLE));
              DescribeShareGroupsResult describeShareGroupsResult = mock(DescribeShareGroupsResult.class);
              ShareGroupDescription exp1 = new ShareGroupDescription(
                  firstGroup,
                  List.of(new ShareMemberDescription("memid1", "clId1", "host1", new ShareMemberAssignment(
                      Set.of(new TopicPartition("topic1", 0), new TopicPartition("topic1", 1), new TopicPartition("topic2", 0))
                  ), 0)),
                  GroupState.STABLE,
                  new Node(0, "host1", 9090), 0, 0);
              ShareGroupDescription exp2 = new ShareGroupDescription(
                  secondGroup,
                  List.of(new ShareMemberDescription("memid1", "clId1", "host1", new ShareMemberAssignment(
                      Set.of(new TopicPartition("topic1", 0))
                  ), 0)),
                  GroupState.STABLE,
                  new Node(0, "host1", 9090), 0, 0);
  
              when(listGroupsResult.all()).thenReturn(KafkaFuture.completedFuture(List.of(firstGroupListing, secondGroupListing)));
              when(adminClient.listGroups(any(ListGroupsOptions.class))).thenReturn(listGroupsResult);
              when(describeShareGroupsResult.describedGroups()).thenReturn(Map.of(firstGroup, KafkaFuture.completedFuture(exp1), secondGroup, KafkaFuture.completedFuture(exp2)));
              when(adminClient.describeShareGroups(ArgumentMatchers.anyCollection(), any(DescribeShareGroupsOptions.class))).thenReturn(describeShareGroupsResult);
              try (ShareGroupService service = getShareGroupService(cgcArgs.toArray(new String[0]), adminClient)) {
                  TestUtils.waitForCondition(() -> {
                      Entry<String, String> res = ToolsTestUtils.grabConsoleOutputAndError(describeGroups(service));
                      String[] lines = res.getKey().trim().split("\n");
                      if (lines.length != 2 && !res.getValue().isEmpty()) {
                          return false;
                      }
  
                      List<String> expectedValues1;
                      List<String> expectedValues2;
                      if (describeType.contains("--verbose")) {
                          expectedValues1 = List.of(firstGroup, "memid1", "host1", "clId1", "3", "0", "topic1:0,1;topic2:0");
                          expectedValues2 = List.of(secondGroup, "memid1", "host1", "clId1", "1", "0", "topic1:0");
  
                      } else {
                          expectedValues1 = List.of(firstGroup, "memid1", "host1", "clId1", "3", "topic1:0,1;topic2:0");
                          expectedValues2 = List.of(secondGroup, "memid1", "host1", "clId1", "1", "topic1:0");
                      }
                      return checkArgsHeaderOutput(cgcArgs, lines[0]) && checkArgsHeaderOutput(cgcArgs, lines[3]) &&
                          Arrays.stream(lines[1].trim().split("\\s+")).toList().equals(expectedValues1) &&
                          Arrays.stream(lines[4].trim().split("\\s+")).toList().equals(expectedValues2);
                  }, "Expected 2 data rows and no error in describe results with describe type " + String.join(" ", describeType) + ".");
              }
          }
      }
  
      @Test
      public void testDescribeNonexistentGroup() {
          String missingGroup = "missing.group";
          String bootstrapServer = "localhost:9092";
  
          for (List<String> describeType : DESCRIBE_TYPES) {
              // note the group to be queried is a different (non-existing) group
              List<String> cgcArgs = new ArrayList<>(Arrays.asList("--bootstrap-server", bootstrapServer, "--describe", "--group", missingGroup));
              cgcArgs.addAll(describeType);
              Admin adminClient = mock(KafkaAdminClient.class);
              DescribeShareGroupsResult describeShareGroupsResult = mock(DescribeShareGroupsResult.class);
              KafkaFutureImpl<ShareGroupDescription> missingGroupFuture = new KafkaFutureImpl<>();
              missingGroupFuture.completeExceptionally(new GroupIdNotFoundException("Group " + missingGroup + " not found."));
              when(describeShareGroupsResult.describedGroups()).thenReturn(Map.of(missingGroup, missingGroupFuture));
              when(adminClient.describeShareGroups(ArgumentMatchers.anyCollection(), any(DescribeShareGroupsOptions.class))).thenReturn(describeShareGroupsResult);
              try (ShareGroupService service = getShareGroupService(cgcArgs.toArray(new String[0]), adminClient)) {
                  service.describeGroups();
                  fail("Expected error was not detected for describe option '" + String.join(" ", describeType) + "'");
              } catch (ExecutionException ee) {
                  assertInstanceOf(GroupIdNotFoundException.class, ee.getCause());
                  assertEquals("Group " + missingGroup + " not found.", ee.getCause().getMessage());
              } catch (Exception e) {
                  fail("Expected error was not detected for describe option '" + String.join(" ", describeType) + "'");
              }
          }
      }
  
      @Test
      public void testPrintEmptyGroupState() {
          assertFalse(ShareGroupService.maybePrintEmptyGroupState("group", GroupState.EMPTY, 0));
          assertFalse(ShareGroupService.maybePrintEmptyGroupState("group", GroupState.DEAD, 0));
          assertFalse(ShareGroupService.maybePrintEmptyGroupState("group", GroupState.STABLE, 0));
          assertTrue(ShareGroupService.maybePrintEmptyGroupState("group", GroupState.STABLE, 1));
          assertTrue(ShareGroupService.maybePrintEmptyGroupState("group", GroupState.UNKNOWN, 1));
      }
  
      @Test
      public void testListWithUnrecognizedOption() {
          String bootstrapServer = "localhost:9092";
          String[] cgcArgs = new String[]{"--bootstrap-server", bootstrapServer, "--list", "--verbose"};
          assertThrows(OptionException.class, () -> getShareGroupService(cgcArgs, new MockAdminClient()));
      }
  
      @Test
      public void testGroupStatesFromString() {
          Set<GroupState> result = ShareGroupCommand.groupStatesFromString("Stable");
          assertEquals(Set.of(GroupState.STABLE), result);
  
          result = ShareGroupCommand.groupStatesFromString("stable");
          assertEquals(Set.of(GroupState.STABLE), result);
  
          result = ShareGroupCommand.groupStatesFromString("dead");
          assertEquals(Set.of(GroupState.DEAD), result);
  
          result = ShareGroupCommand.groupStatesFromString("empty");
          assertEquals(Set.of(GroupState.EMPTY), result);
  
          assertThrows(IllegalArgumentException.class, () -> ShareGroupCommand.groupStatesFromString("assigning"));
  
          assertThrows(IllegalArgumentException.class, () -> ShareGroupCommand.groupStatesFromString("bad, wrong"));
  
          assertThrows(IllegalArgumentException.class, () -> ShareGroupCommand.groupStatesFromString("  bad, Stable"));
  
          assertThrows(IllegalArgumentException.class, () -> ShareGroupCommand.groupStatesFromString("   ,   ,"));
      }
  
      @Test
      public void testDeleteShareGroupOffsetsArgsWithoutTopic() {
          String bootstrapServer = "localhost:9092";
          Admin adminClient = mock(KafkaAdminClient.class);
  
          // no group spec args
          String[] cgcArgs = new String[]{"--bootstrap-server", bootstrapServer, "--delete-offsets", "--group", "groupId"};
          AtomicBoolean exited = new AtomicBoolean(false);
          Exit.setExitProcedure(((statusCode, message) -> {
              assertNotEquals(0, statusCode);
              assertTrue(message.contains("Option [delete-offsets] takes the following options: [topic], [group]"));
              exited.set(true);
          }));
          try {
              getShareGroupService(cgcArgs, adminClient);
          } finally {
              assertTrue(exited.get());
          }
      }
  
      @Test
      public void testDeleteShareGroupOffsetsArgsWithoutGroup() {
          String bootstrapServer = "localhost:9092";
          Admin adminClient = mock(KafkaAdminClient.class);
  
          // no group spec args
          String[] cgcArgs = new String[]{"--bootstrap-server", bootstrapServer, "--delete-offsets", "--topic", "t1"};
          AtomicBoolean exited = new AtomicBoolean(false);
          Exit.setExitProcedure(((statusCode, message) -> {
              assertNotEquals(0, statusCode);
              assertTrue(message.contains("Option [delete-offsets] takes the following options: [topic], [group]"));
              exited.set(true);
          }));
          try {
              getShareGroupService(cgcArgs, adminClient);
          } finally {
              assertTrue(exited.get());
          }
      }
  
      @Test
      public void testDeleteShareGroupOffsets() throws Exception {
          String firstGroup = "first-group";
          String firstTopic = "t1";
          String secondTopic = "t2";
          String bootstrapServer = "localhost:9092";
  
          List<String> cgcArgs = new ArrayList<>(Arrays.asList("--bootstrap-server", bootstrapServer, "--delete-offsets", "--group", firstGroup, "--topic", firstTopic, "--topic", secondTopic));
          Admin adminClient = mock(KafkaAdminClient.class);
          DeleteShareGroupOffsetsResult result = mock(DeleteShareGroupOffsetsResult.class);
  
          when(result.all()).thenReturn(KafkaFuture.completedFuture(null));
  
          when(result.topicResult(eq(firstTopic))).thenReturn(KafkaFuture.completedFuture(null));
          when(result.topicResult(eq(secondTopic))).thenReturn(KafkaFuture.completedFuture(null));
  
          when(adminClient.deleteShareGroupOffsets(any(), any(), any())).thenReturn(result);
  
          try (ShareGroupService service = getShareGroupService(cgcArgs.toArray(new String[0]), adminClient)) {
              TestUtils.waitForCondition(() -> {
                  Entry<String, String> res = ToolsTestUtils.grabConsoleOutputAndError(deleteOffsets(service));
                  String[] lines = res.getKey().trim().split("\n");
                  if (lines.length != 3 && !res.getValue().isEmpty()) {
                      return false;
                  }
  
                  List<String> expectedResultHeader = List.of("TOPIC", "STATUS");
                  List<String> expectedResultValues1 = List.of(firstTopic, "Successful");
                  List<String> expectedResultValues2 = List.of(secondTopic, "Successful");
  
                  return Arrays.stream(lines[0].trim().split("\\s+")).toList().equals(expectedResultHeader) &&
                      Arrays.stream(lines[1].trim().split("\\s+")).toList().equals(expectedResultValues1) &&
                      Arrays.stream(lines[2].trim().split("\\s+")).toList().equals(expectedResultValues2);
              }, "Expected a data row and no error in delete offsets result with group: " + firstGroup + " and topic: " + firstTopic);
          }
      }
  
      @Test
      public void testDeleteShareGroupOffsetsMultipleGroups() {
          String firstGroup = "first-group";
          String secondGroup = "second-group";
          String firstTopic = "t1";
          String secondTopic = "t2";
          String bootstrapServer = "localhost:9092";
  
          List<String> cgcArgs = new ArrayList<>(Arrays.asList("--bootstrap-server", bootstrapServer, "--delete-offsets", "--group", firstGroup, "--group", secondGroup, "--topic", firstTopic, "--topic", secondTopic));
          Admin adminClient = mock(KafkaAdminClient.class);
  
          try (ShareGroupService service = getShareGroupService(cgcArgs.toArray(new String[0]), adminClient)) {
              service.deleteOffsets();
              fail("Expected error was not detected while trying delete offsets multiple groups");
          } catch (Exception e) {
              String expectedErrorMessage = "Found multiple arguments for option group, but you asked for only one";
              assertEquals(expectedErrorMessage, e.getMessage());
          }
      }
  
      @Test
      public void testDeleteShareGroupOffsetsTopLevelError() throws Exception {
          String firstGroup = "first-group";
          String firstTopic = "t1";
          String secondTopic = "t2";
          String bootstrapServer = "localhost:9092";
  
          List<String> cgcArgs = new ArrayList<>(Arrays.asList("--bootstrap-server", bootstrapServer, "--delete-offsets", "--group", firstGroup, "--topic", firstTopic, "--topic", secondTopic));
          Admin adminClient = mock(KafkaAdminClient.class);
          DeleteShareGroupOffsetsResult result = mock(DeleteShareGroupOffsetsResult.class);
  
          KafkaFutureImpl<Void> resultFuture = new KafkaFutureImpl<>();
          String errorMessage = "Group g3 not found.";
          GroupIdNotFoundException exception = new GroupIdNotFoundException(errorMessage);
  
          resultFuture.completeExceptionally(exception);
          when(result.all()).thenReturn(resultFuture);
  
          when(result.topicResult(eq(firstTopic))).thenReturn(resultFuture);
          when(result.topicResult(eq(secondTopic))).thenReturn(resultFuture);
  
          when(adminClient.deleteShareGroupOffsets(any(), any(), any())).thenReturn(result);
  
          try (ShareGroupService service = getShareGroupService(cgcArgs.toArray(new String[0]), adminClient)) {
              TestUtils.waitForCondition(() -> {
                  Entry<String, String> res = ToolsTestUtils.grabConsoleOutputAndError(deleteOffsets(service));
                  String[] lines = res.getKey().trim().split("\n");
                  if (lines.length != 5 && !res.getValue().isEmpty()) {
                      return false;
                  }
  
                  List<String> error = Stream.concat(
                      Stream.of("Error:"),
                      Arrays.stream(errorMessage.trim().split("\\s+"))
                      ).toList();
  
                  List<String> errorLine = new ArrayList<>(error);
                  List<String> expectedResultHeader = List.of("TOPIC", "STATUS");
                  List<String> expectedResultValue1 =  new ArrayList<>();
                  expectedResultValue1.add(firstTopic);
                  expectedResultValue1.addAll(error);
                  List<String> expectedResultValue2 =  new ArrayList<>();
                  expectedResultValue2.add(secondTopic);
                  expectedResultValue2.addAll(error);
  
                  return Arrays.stream(lines[0].trim().split("\\s+")).toList().equals(errorLine) &&
                      Arrays.stream(lines[2].trim().split("\\s+")).toList().equals(expectedResultHeader) &&
                      Arrays.stream(lines[3].trim().split("\\s+")).toList().equals(expectedResultValue1) &&
                      Arrays.stream(lines[4].trim().split("\\s+")).toList().equals(expectedResultValue2);
              }, "Expected a data row and no error in delete offsets result with group: " + firstGroup + " and topic: " + firstTopic);
          }
      }
  
      @Test
      public void testDeleteShareGroupOffsetsTopicLevelError() throws Exception {
          String firstGroup = "first-group";
          String firstTopic = "t1";
          String secondTopic = "t2";
          String bootstrapServer = "localhost:9092";
  
          List<String> cgcArgs = new ArrayList<>(Arrays.asList("--bootstrap-server", bootstrapServer, "--delete-offsets", "--group", firstGroup, "--topic", firstTopic, "--topic", secondTopic));
          Admin adminClient = mock(KafkaAdminClient.class);
          DeleteShareGroupOffsetsResult result = mock(DeleteShareGroupOffsetsResult.class);
  
          KafkaFutureImpl<Void> resultFuture = new KafkaFutureImpl<>();
          String errorMessage = Errors.UNKNOWN_TOPIC_OR_PARTITION.message();
  
          resultFuture.completeExceptionally(Errors.UNKNOWN_TOPIC_OR_PARTITION.exception());
          when(result.all()).thenReturn(resultFuture);
  
          when(result.topicResult(eq(firstTopic))).thenReturn(KafkaFuture.completedFuture(null));
          when(result.topicResult(eq(secondTopic))).thenReturn(resultFuture);
  
          when(adminClient.deleteShareGroupOffsets(any(), any(), any())).thenReturn(result);
  
          try (ShareGroupService service = getShareGroupService(cgcArgs.toArray(new String[0]), adminClient)) {
              TestUtils.waitForCondition(() -> {
                  Entry<String, String> res = ToolsTestUtils.grabConsoleOutputAndError(deleteOffsets(service));
                  String[] lines = res.getKey().trim().split("\n");
                  if (lines.length != 5 && !res.getValue().isEmpty()) {
                      return false;
                  }
  
                  List<String> error = Stream.concat(
                      Stream.of("Error:"),
                      Arrays.stream(errorMessage.trim().split("\\s+"))
                  ).toList();
  
                  List<String> expectedResultHeader = List.of("TOPIC", "STATUS");
                  List<String> expectedResultValue1 =  List.of(firstTopic, "Successful");
                  List<String> expectedResultValue2 =  new ArrayList<>();
                  expectedResultValue2.add(secondTopic);
                  expectedResultValue2.addAll(error);
  
                  return Arrays.stream(lines[0].trim().split("\\s+")).toList().equals(expectedResultHeader) &&
                      Arrays.stream(lines[1].trim().split("\\s+")).toList().equals(expectedResultValue1) &&
                      Arrays.stream(lines[2].trim().split("\\s+")).toList().equals(expectedResultValue2);
              }, "Expected a data row and no error in delete offsets result with group: " + firstGroup + " and topic: " + firstTopic);
          }
      }
  
      @Test
      public void testDeleteShareGroupsArgs() {
          String bootstrapServer = "localhost:9092";
          Admin adminClient = mock(KafkaAdminClient.class);
  
          mockListShareGroups(adminClient, new LinkedHashMap<>());
  
          // no group spec args
          String[] cgcArgs = new String[]{"--bootstrap-server", bootstrapServer, "--delete"};
          AtomicBoolean exited = new AtomicBoolean(false);
          Exit.setExitProcedure(((statusCode, message) -> {
              assertNotEquals(0, statusCode);
              assertTrue(message.contains("Option [delete] takes the options [group] or [all-groups]"));
              exited.set(true);
          }));
          try {
              getShareGroupService(cgcArgs, adminClient);
          } finally {
              assertTrue(exited.get());
          }
      }
  
      @Test
      public void testDeleteShareGroupsSuccess() {
          String firstGroup = "first-group";
          String secondGroup = "second-group";
          String bootstrapServer = "localhost:9092";
  
          String[] cgcArgs = new String[]{"--bootstrap-server", bootstrapServer, "--delete", "--group", firstGroup, "--group", secondGroup};
          Admin adminClient = mock(KafkaAdminClient.class);
          DeleteShareGroupsResult result = mock(DeleteShareGroupsResult.class);
          Map<String, KafkaFuture<Void>> deletedGroups = Map.of(
              firstGroup, KafkaFuture.completedFuture(null),
              secondGroup, KafkaFuture.completedFuture(null)
          );
  
          LinkedHashMap<String, GroupState> shareGroupMap = new LinkedHashMap<>();
          shareGroupMap.put(firstGroup, GroupState.EMPTY);
          shareGroupMap.put(secondGroup, GroupState.EMPTY);
          mockListShareGroups(adminClient, shareGroupMap);
  
          when(result.deletedGroups()).thenReturn(deletedGroups);
  
          Map<String, Throwable> expectedResults = new HashMap<>();
          expectedResults.put(firstGroup, null);
          expectedResults.put(secondGroup, null);
  
          when(adminClient.deleteShareGroups(anyList(), any())).thenReturn(result);
  
          try (ShareGroupService service = getShareGroupService(cgcArgs, adminClient)) {
              assertEquals(expectedResults, service.deleteShareGroups());
          }
      }
  
      @Test
      public void testDeleteShareGroupsAllGroupsSuccess() {
          String firstGroup = "first-group";
          String secondGroup = "second-group";
          String bootstrapServer = "localhost:9092";
  
          String[] cgcArgs = new String[]{"--bootstrap-server", bootstrapServer, "--delete", "--all-groups"};
          Admin adminClient = mock(KafkaAdminClient.class);
          DeleteShareGroupsResult result = mock(DeleteShareGroupsResult.class);
          Map<String, KafkaFuture<Void>> deletedGroups = Map.of(
              firstGroup, KafkaFuture.completedFuture(null),
              secondGroup, KafkaFuture.completedFuture(null)
          );
  
          LinkedHashMap<String, GroupState> shareGroupMap = new LinkedHashMap<>();
          shareGroupMap.put(firstGroup, GroupState.EMPTY);
          shareGroupMap.put(secondGroup, GroupState.EMPTY);
          mockListShareGroups(adminClient, shareGroupMap);
  
          when(result.deletedGroups()).thenReturn(deletedGroups);
  
          Map<String, Throwable> expectedResults = new HashMap<>();
          expectedResults.put(firstGroup, null);
          expectedResults.put(secondGroup, null);
  
          when(adminClient.deleteShareGroups(anyList(), any())).thenReturn(result);
  
          try (ShareGroupService service = getShareGroupService(cgcArgs, adminClient)) {
              assertEquals(expectedResults, service.deleteShareGroups());
          }
      }
  
      @Test
      public void testDeleteShareGroupsAllGroupsPartialFail() {
          String firstGroup = "first-group";
          String secondGroup = "second-group";
          String bootstrapServer = "localhost:9092";
  
          String[] cgcArgs = new String[]{"--bootstrap-server", bootstrapServer, "--delete", "--all-groups"};
          Admin adminClient = mock(KafkaAdminClient.class);
          DeleteShareGroupsResult result = mock(DeleteShareGroupsResult.class);
          KafkaFutureImpl<Void> future1 = new KafkaFutureImpl<>();
          KafkaFutureImpl<Void> future2 = new KafkaFutureImpl<>();
          future1.complete(null);
          Exception exp = new Exception("bad");
          future2.completeExceptionally(exp);
          Map<String, KafkaFuture<Void>> deletedGroups = Map.of(
              firstGroup, future1,
              secondGroup, future2
          );
  
          LinkedHashMap<String, GroupState> shareGroupMap = new LinkedHashMap<>();
          shareGroupMap.put(firstGroup, GroupState.EMPTY);
          shareGroupMap.put(secondGroup, GroupState.EMPTY);
          mockListShareGroups(adminClient, shareGroupMap);
  
          when(result.deletedGroups()).thenReturn(deletedGroups);
  
          Map<String, Throwable> expectedResults = new HashMap<>();
          expectedResults.put(firstGroup, null);
          expectedResults.put(secondGroup, exp);
  
          when(adminClient.deleteShareGroups(anyList(), any())).thenReturn(result);
  
          try (ShareGroupService service = getShareGroupService(cgcArgs, adminClient)) {
              assertEquals(expectedResults, service.deleteShareGroups());
          }
      }
  
      @Test
      public void testDeleteShareGroupsDeleteFailure() {
          String firstGroup = "first-group";
          String secondGroup = "second-group";
          String bootstrapServer = "localhost:9092";
  
          String[] cgcArgs = new String[]{"--bootstrap-server", bootstrapServer, "--delete", "--group", firstGroup, "--group", secondGroup};
          Admin adminClient = mock(KafkaAdminClient.class);
          DeleteShareGroupsResult result = mock(DeleteShareGroupsResult.class);
  
          LinkedHashMap<String, GroupState> shareGroupMap = new LinkedHashMap<>();
          shareGroupMap.put(firstGroup, GroupState.EMPTY);
          shareGroupMap.put(secondGroup, GroupState.EMPTY);
          mockListShareGroups(adminClient, shareGroupMap);
  
          KafkaFutureImpl<Void> future = new KafkaFutureImpl<>();
          Exception exp = new Exception("bad");
          future.completeExceptionally(exp);
          Map<String, KafkaFuture<Void>> deletedGroups = Map.of(
              firstGroup, future,
              secondGroup, future
          );
  
          when(result.deletedGroups()).thenReturn(deletedGroups);
  
          Map<String, Throwable> expectedResults = new HashMap<>();
          expectedResults.put(firstGroup, exp);
          expectedResults.put(secondGroup, exp);
  
          when(adminClient.deleteShareGroups(anyList(), any())).thenReturn(result);
  
          try (ShareGroupService service = getShareGroupService(cgcArgs, adminClient)) {
              assertEquals(expectedResults, service.deleteShareGroups());
          }
      }
  
      @Test
      public void testDeleteShareGroupsFailureNonShareGroup() {
          String firstGroup = "first-group";
          String bootstrapServer = "localhost:9092";
  
          String[] cgcArgs = new String[]{"--bootstrap-server", bootstrapServer, "--delete", "--group", firstGroup};
          Admin adminClient = mock(KafkaAdminClient.class);
          DeleteShareGroupsResult result = mock(DeleteShareGroupsResult.class);
          mockListShareGroups(adminClient, new LinkedHashMap<>());
  
          when(result.deletedGroups()).thenReturn(Map.of());
  
          when(adminClient.deleteShareGroups(anyList(), any())).thenReturn(result);
  
          try (ShareGroupService service = getShareGroupService(cgcArgs, adminClient)) {
              service.deleteShareGroups();
              verify(result, times(0)).deletedGroups();
              verify(adminClient, times(0)).deleteShareGroups(anyList());
          }
      }
  
      @Test
      public void testDeleteShareGroupsFailureNonEmptyGroup() {
          String firstGroup = "first-group";
          String bootstrapServer = "localhost:9092";
  
          String[] cgcArgs = new String[]{"--bootstrap-server", bootstrapServer, "--delete", "--group", firstGroup};
          Admin adminClient = mock(KafkaAdminClient.class);
          DeleteShareGroupsResult result = mock(DeleteShareGroupsResult.class);
  
          LinkedHashMap<String, GroupState> shareGroupMap = new LinkedHashMap<>();
          shareGroupMap.put(firstGroup, GroupState.STABLE);
          mockListShareGroups(adminClient, shareGroupMap);
  
          when(result.deletedGroups()).thenReturn(Map.of());
  
          when(adminClient.deleteShareGroups(anyList(), any())).thenReturn(result);
  
          try (ShareGroupService service = getShareGroupService(cgcArgs, adminClient)) {
              service.deleteShareGroups();
              verify(result, times(0)).deletedGroups();
              verify(adminClient, times(0)).deleteShareGroups(anyList());
          }
      }
  
      @Test
      public void testDeleteShareGroupsPartialFailure() {
          String firstGroup = "first-group";
          String secondGroup = "second-group";
          String bootstrapServer = "localhost:9092";
  
          String[] cgcArgs = new String[]{"--bootstrap-server", bootstrapServer, "--delete", "--group", firstGroup, "--group", secondGroup};
          Admin adminClient = mock(KafkaAdminClient.class);
          DeleteShareGroupsResult result = mock(DeleteShareGroupsResult.class);
          LinkedHashMap<String, GroupState> shareGroupMap = new LinkedHashMap<>();
          shareGroupMap.put(firstGroup, GroupState.EMPTY);
          shareGroupMap.put(secondGroup, GroupState.EMPTY);
          mockListShareGroups(adminClient, shareGroupMap);
          KafkaFutureImpl<Void> future1 = new KafkaFutureImpl<>();
          KafkaFutureImpl<Void> future2 = new KafkaFutureImpl<>();
          future1.complete(null);
          Exception exp = new Exception("bad");
          future2.completeExceptionally(exp);
          Map<String, KafkaFuture<Void>> deletedGroups = Map.of(
              firstGroup, future1,
              secondGroup, future2
          );
  
          when(result.deletedGroups()).thenReturn(deletedGroups);
  
          when(adminClient.deleteShareGroups(anyList(), any())).thenReturn(result);
          Map<String, Throwable> expectedResults = new HashMap<>();
          expectedResults.put(firstGroup, null);
          expectedResults.put(secondGroup, exp);
  
          try (ShareGroupService service = getShareGroupService(cgcArgs, adminClient)) {
              assertEquals(expectedResults, service.deleteShareGroups());
          }
      }
  
      private void mockListShareGroups(Admin client, LinkedHashMap<String, GroupState> groupIds) {
          ListGroupsResult listResult = mock(ListGroupsResult.class);
          KafkaFutureImpl<Collection<GroupListing>> listFuture = new KafkaFutureImpl<>();
          List<GroupListing> groupListings = new ArrayList<>();
          groupIds.forEach((groupId, state) -> groupListings.add(
              new GroupListing(groupId, Optional.of(GroupType.SHARE), "share", Optional.of(state))
          ));
          listFuture.complete(groupListings);
          when(listResult.all()).thenReturn(listFuture);
          when(client.listGroups(any())).thenReturn(listResult);
      }
  
      ShareGroupService getShareGroupService(String[] args, Admin adminClient) {
          ShareGroupCommandOptions opts = new ShareGroupCommandOptions(args);
          opts.checkArgs();
          return new ShareGroupService(opts, adminClient);
      }
  
      private Runnable describeGroups(ShareGroupCommand.ShareGroupService service) {
          return () -> Assertions.assertDoesNotThrow(service::describeGroups);
      }
  
      private Runnable deleteOffsets(ShareGroupCommand.ShareGroupService service) {
          return () -> Assertions.assertDoesNotThrow(service::deleteOffsets);
      }
  
      private boolean checkArgsHeaderOutput(List<String> args, String output) {
          if (!output.contains("GROUP")) {
              return false;
          }
  
          if (args.contains("--members")) {
              return checkMembersArgsHeaderOutput(output, args.contains("--verbose"));
          }
  
          if (args.contains("--state")) {
              return checkStateArgsHeaderOutput(output, args.contains("--verbose"));
          }
  
          // --offsets or no arguments
          return checkOffsetsArgsHeaderOutput(output, args.contains("--verbose"));
      }
  
      private boolean checkOffsetsArgsHeaderOutput(String output, boolean verbose) {
          List<String> expectedKeys = verbose ?
              List.of("GROUP", "TOPIC", "PARTITION", "LEADER-EPOCH", "START-OFFSET") :
              List.of("GROUP", "TOPIC", "PARTITION", "START-OFFSET");
          return Arrays.stream(output.trim().split("\\s+")).toList().equals(expectedKeys);
      }
  
      private boolean checkMembersArgsHeaderOutput(String output, boolean verbose) {
          List<String> expectedKeys = verbose ?
              List.of("GROUP", "CONSUMER-ID", "HOST", "CLIENT-ID", "#PARTITIONS", "MEMBER-EPOCH", "ASSIGNMENT") :
              List.of("GROUP", "CONSUMER-ID", "HOST", "CLIENT-ID", "#PARTITIONS", "ASSIGNMENT");
          return Arrays.stream(output.trim().split("\\s+")).toList().equals(expectedKeys);
      }
  
      private boolean checkStateArgsHeaderOutput(String output, boolean verbose) {
          List<String> expectedKeys = verbose ?
              List.of("GROUP", "COORDINATOR", "(ID)", "STATE", "GROUP-EPOCH", "ASSIGNMENT-EPOCH", "#MEMBERS") :
              List.of("GROUP", "COORDINATOR", "(ID)", "STATE", "#MEMBERS");
          return Arrays.stream(output.trim().split("\\s+")).toList().equals(expectedKeys);
      }
  }
  