angularjs http service unit testing - angularjs

Question

I am trying to test a simple service for learning purposes..However; I can't figure out how it must be done:
service:
.factory('myService', function($http) {
var myService = {
async: function() {
var promise = $http.get('test.json').then(function (response)
{
return response.data;
});
return promise;
}
};
return myService;
});
controller:
myService.async().then(function(d) {
$scope.data = d;
$scope.e = $scope.data.txt;
});
test:
'use strict';
describe("myService", function(){
beforeEach(module("testingExpApp"));
var myService,
$httpBackend;
beforeEach(inject(function(myService, _$httpBackend_){
myService = myService;
$httpBackend = _$httpBackend_;
}));
describe("get", function(){
it('should return test.json data', function () {
var url = "../mock/test.json";
var x = $httpBackend.expectGET(url).respond(200, 'txt from json');
// flush response
$httpBackend.flush();
expect(x).toBe('txt from json');
});
});
});
I get 'no pending request to flush!'
I just want to test that myservice.get() get the test.json file data..I have tried everything but can't get it working..
Any tips?
Thanks a lot in advance!

Answer 1

What I was missing is to call service function
it had to be:
it('should return test.json data', function () {
var url = "../../mock/test.json";
$httpBackend.expectGET(url).respond(200, 'data from test.json');
//Execute service func here..
myServiceFunc.async().then(function(result) {
console.log(result);
expect(result).toEqual('data from test.json');
});
$httpBackend.flush();
});