Jasmine mocked promise method doesn't trigger then block - angularjs

Question

I'm having trouble getting a mocked method that returns a promise to trigger the then connected to it.
Here is the service being tested. The get method is the important aspect of it.
angular.module('service.overtimeRules').factory('OvertimeRules', OvertimeRules);
function OvertimeRules(_, Message, OvertimeRulesModel) {
const rules = [];
return { get };
function get() {
return OvertimeRulesModel.get().then(
data => {
console.log('This never fires :(');
rules.push(...data);
},
() => Message.add('Error retrieving the overtime rules.', 'danger')
);
}
}
Here is the spec file. The error I get is TypeError: undefined is not an object (evaluating 'OvertimeRulesModel.get'). If I remove the get describe wrapper, the error goes away, but the service method's then block still doesn't fire.
describe('OvertimeRules', () => {
let $q, $rootScope, deferred, Message, OvertimeRules, OvertimeRulesModel;
beforeEach(() => {
module('globals');
module('service.overtimeRules');
module($provide => {
$provide.value('Message', Message);
$provide.value('OvertimeRulesModel', OvertimeRulesModel);
});
inject((_$q_, _$rootScope_, _OvertimeRules_) => {
$q = _$q_;
$rootScope = _$rootScope_;
OvertimeRules = _OvertimeRules_;
deferred = { OvertimeRulesModel: { get: $q.defer(), update: $q.defer } };
Message = jasmine.createSpyObj('Message', ['add']);
OvertimeRulesModel = jasmine.createSpyObj('OvertimeRulesModel', ['get']);
OvertimeRulesModel.get.and.returnValue(deferred.OvertimeRulesModel.get.promise);
});
});
describe('get', () => { // why would this cause an error?
it('gets a list of rules and pushes them into the rules array', () => {
deferred.OvertimeRulesModel.get.resolve(['rules']);
OvertimeRules.get();
$rootScope.$digest(); // $apply doesn't work either
expect(OvertimeRules.rules).toEqual(['rules']);
});
});
});
Possibly important notes:
I'm happy to approach this another way as long as the code is concise and readable. Also, I need to reject promises as well.
OvertimeRulesModel is another factory in this service.overtimeRules module; Message is part of a separate module.
I tried moving OvertimeRulesModel to its own module, but got the same error.
I'm using the
A = jasmine.createSpyObj(...); A.get.and.returnValue(promise);
approach in a controller spec and everything is working fine
These are unit tests, so I'd prefer to avoid injecting the actual OvertimeRulesModel service.

Answer 1

Better answer
Seems like I was losing reference the variables being supplied to the module provider. Solution is just to move the createSpyObj calls above the $provide statement.
...
module('service.overtimeRules');
Message = jasmine.createSpyObj('Message', ['add']);
OvertimeRulesModel = jasmine.createSpyObj('OvertimeRulesModel', ['get']);
module($provide => {
$provide.value('Message', Message);
$provide.value('OvertimeRulesModel', OvertimeRulesModel);
});
...
Going with solution fixed another issue I ran into. Also, I didn't have to change the returnValue syntax.
Old answer:
And apparently, all I needed to do was change returnValue to callFake like so:
OvertimeRulesModel = jasmine.createSpyObj('OvertimeRulesModel', ['get']);
OvertimeRulesModel.get.and.callFake(() => deferred.OvertimeRulesModel.get.promise);