c.Fatalf("group list err: %v", err)
	}
	expected := []string{group}
	if !slices.Equal(groups, expected) {
		c.Fatalf("expected group listing: %v, got: %v", expected, groups)
	}
	groupInfo, err := s.adm.GetGroupDescription(ctx, group)
	if err != nil {
		c.Fatalf("group desc err: %v", err)
	}
	c.Assert(groupInfo.Name, group)
	c.Assert(set.CreateStringSet(groupInfo.Members...), set.CreateStringSet(accessKey))

	var updatedAt time.Time
	if updReq.IsRemove {
		updatedAt, err = globalIAMSys.RemoveUsersFromGroup(ctx, updReq.Group, updReq.Members)
	} else {
		// Check if group already exists
		if _, gerr := globalIAMSys.GetGroupDescription(updReq.Group); gerr != nil {
			// If group does not exist, then check if the group has beginning and end space characters
			// we will reject such group names.