REQ-3345: 群成员数量不能等于0

im-center-server/src/main/java/cn/axzo/im/group/GroupManager.java

@@ -178,11 +178,10 @@ public class GroupManager {
         NimGroupRemoveMembersRequest nimRequest = groupSupport
                 .buildRemoveMembersRequest(group, group.getOwnerAccount(), imAccounts);
         rateLimiter.requireRemoveMember();
-        // 不判断NIM响应状态, 因为前端可能已经调用app sdk移除过成员了(支持重复移除)
         NimGroupRemoveMembersResponse nimResponse = nimClient.removeGroupMembers(nimRequest);
         log.info("移除群成员, request={}, response={}", nimRequest, nimResponse);
+        BizAssertions.assertTrue(nimResponse.isSuccess(), "移除群成员失败: {}", nimResponse.getDesc());
         groupMemberSyncer.syncMembers(group);
-        // 不比较直接发消息
         groupBroadcaster.fireMembersChanged(group,
                 toRemoveMembers, MqEventType.GROUP_REMOVE_MEMBERS);
     }