u := &User{Username: tc.user, Gid: tc.gid}
		got, err := listGroupsFromReader(u, strings.NewReader(tc.in))
		if tc.err {
			if err == nil {
				t.Errorf("listGroups(%q): got nil; want error", tc.user)
			}
			continue // no more checks
		}
		if err != nil {
			t.Errorf("listGroups(%q): got %v error, want nil", tc.user, err)
			continue // no more checks
		}
		checkSameIDs(t, got, tc.gids)
	}
}

func LookupGroupId(gid string) (*Group, error) {
	return lookupGroupId(gid)
}

// GroupIds returns the list of group IDs that the user is a member of.
func (u *User) GroupIds() ([]string, error) {
	return listGroups(u)

		Status:    gi.Status,
		Members:   gi.Members,
		Policy:    policy,
		UpdatedAt: gi.UpdatedAt,
	}, nil
}

// ListGroups - lists groups. Since this is not going to be a frequent
// operation, we fetch this info from storage, and refresh the cache as well.
func (store *IAMStoreSys) ListGroups(ctx context.Context) (res []string, err error) {
	cache := store.lock()
	defer store.unlock()

	}

	writeSuccessResponseJSON(w, body)
}

// ListGroups - GET /minio/admin/v3/groups
func (a adminAPIHandlers) ListGroups(w http.ResponseWriter, r *http.Request) {
	ctx := r.Context()

	objectAPI, _ := validateAdminReq(ctx, w, r, policy.ListGroupsAdminAction)
	if objectAPI == nil {
		return
	}

	groups, err := globalIAMSys.ListGroups(ctx)
	if err != nil {

		// List Groups
		adminRouter.Methods(http.MethodGet).Path(adminVersion + "/groups").HandlerFunc(adminMiddleware(adminAPI.ListGroups))

		// Set Group Status
		adminRouter.Methods(http.MethodPut).Path(adminVersion+"/set-group-status").HandlerFunc(adminMiddleware(adminAPI.SetGroupStatus)).Queries("group", "{group:.*}").Queries("status", "{status:.*}")

	err = uClient.RemoveBucket(ctx, bucket)
	if err == nil {
		c.Fatalf("bucket was deleted!")
	}

	// 4. List groups and members and verify
	groups, err := s.adm.ListGroups(ctx)
	if err != nil {
		c.Fatalf("group list err: %v", err)
	}
	if !set.CreateStringSet(groups...).Contains(group) {
		c.Fatalf("created group not present!")
	}

	}

	return sys.store.GetGroupDescription(group)
}

// ListGroups - lists groups.
func (sys *IAMSys) ListGroups(ctx context.Context) (r []string, err error) {
	if !sys.Initialized() {
		return r, errServerNotInitialized
	}

	select {
	case <-sys.configLoaded:
		return sys.store.ListGroups(ctx)
	case <-ctx.Done():
		return nil, ctx.Err()
	}
}

				info.GroupDescMap[opts.EntityValue] = gd
			}
		} else {
			//  get users/group info on local.
			groups, errG := globalIAMSys.store.listGroups(ctx)
			if errG != nil {
				return info, errSRBackendIssue(errG)
			}
			groupDescMap := make(map[string]madmin.GroupDesc, len(groups))
			for _, g := range groups {