add tests

main.go

@@ -22,6 +22,8 @@ func main() {
 	http.HandleFunc("/new/group", withCORS(HttpHandeNewGroup))
 	http.HandleFunc("/mod/group/addclients", withCORS(HttpHandleGroupAddClient))
 	http.HandleFunc("/new/message", withCORS(HttpHandleNewMessage))
+	http.HandleFunc("/get/groups", withCORS(HttpHandleGroupsGetWithoutMembers))
+	http.HandleFunc("/get/groupmembers", withCORS(HttpHandleGroupMembersGet))
 	http.HandleFunc("/ws", ServeWsConnection)
 
 	log.Println("listening on :8080")