Adjust users_api_SUITE to mongoose_helper:wait_until/2

Author: zofpolkowska

big_tests/tests/users_api_SUITE.erl

@@ -102,16 +102,7 @@ auth_modules() ->
 wait_for_user_removal(false) ->
     ok;
 wait_for_user_removal(_) ->
-    do_wait_for_user_removal(10).
-
-do_wait_for_user_removal(0) ->
-    ok;
-do_wait_for_user_removal(N) ->
     Domain = ct:get_config({hosts, mim, domain}),
-    case rpc(mim(), ejabberd_auth_riak, get_vh_registered_users_number, [Domain]) of
-        0 ->
-            ok;
-        _ ->
-            timer:sleep(500),
-            do_wait_for_user_removal(N-1)
-    end.
+    mongoose_helper:wait_until(fun() -> rpc(mim(), ejabberd_auth_riak, get_vh_registered_users_number, [Domain]) end,
+                              0,
+			      #{ time_sleep => 500, time_left => 5000}).