unit testing - Unittesting and mocking robotlegs service calls using Oil extension -

i have examplemodel calls exampleservice retrieves data our backend. can't figure out how write unit tests application; structured shown below:

exampleservice

public function retrievemytodolist(parameters):promise {     var promise:promise = performrequest({request: "call backend", parameters:    values, session_id: clientmodel.sessionid});     promise.addresultprocessor(parseretrievetodolistresult);     return promise; }  protected function parseretrievetodolistresult(data:object, callback:function):void {     json parsing object     callback(null, object containing retrieved data) } 

examplemodel

public function getmytodolist():promise {     var promise:promise = exampleservice.retrievetodolist(parameters);     promise.addresulthandler(ongettodolistresult);     promise.adderrorhandler(ongettodolisterror);     return promise; }  private function ongetheadrsbyuserresult(promise:promise):void {     // event listened mediators etc     dispatchevent(new responseevent(good_result)); }  private function ongetheadrsbyusererror(promise:promise):void {     dispatchevent(new responseevent(bad_result)); } 

i'm trying use asmock mock service can test model , how handles various results in resulting object how mock callback? saw examples return values mocked in case i'm using promise , callback , i'm not sure how go ahead.

if please advise. thanks!

you can let mock service return real promise , call handleresult method of promise directly.

fyi: it's not idea have direct dependency model service. should let service manipulate model, or pass results service command manipulate model. models should never depend on else helper classes.