(function() {

  var loginMod = angular.module("loginMod", []);

  var loginService = function($http, $httpParamSerializerJQLike) {

  var token = null;

  var getToken = function(username, password) {
  var creds = {
    username: username,
    password: password
  };

  return $http({
    url: "<<some https url>>",
    method: "POST",
    data: $httpParamSerializerJQLike(creds)
  }).then(function(response, status, headers) {
    return response.data;
  })
};

return {
  getToken: getToken,
  token: token,
 };
};

loginMod.factory("loginService", loginService);
}());

describe('loginService', function() {
    beforeEach(module('loginMod'));
    beforeEach(inject(function(_loginService_, _$httpBackend_) {
        service = _loginService_;
        $httpBackend = _$httpBackend_;
    }));

    it('should invoke service with right parameters', function() {
        $httpBackend.expectPOST('<<some https url>>', {
            "username" : "xxxxx",
            "password" : "yyyyy"
        }).respond({});
        service.getToken('xxxxx', 'yyyy');
        $httpBackend.flush();
    });
});

INFO [Chrome 51.0.2704 XXXXX]: Connected on socket ojoou3CV6uVSuPZx2E3D with id 84159242
Chrome 51.0.2704 (XXXX) loginService should invoke service with right parameters FAILED
    SyntaxError: Unexpected token p in JSON at position 0
        at Object.parse (native)