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I have a function inside one of my angular services that I'd like to be called repeatedly at a regular interval. I'd like to do this using $timeout. It looks something like this: var interval = 1000; // Or something var _tick = function () { $timeout(function () { doStuff(); _tick(); }, interval); }; _tick(); I'm stumped on how to unit test this with Jasmine at the moment - How do I do this? If I use $timeout.flush() then the function calls occur indefinitely. If I use Jasmine's mock clock, $timeout seems to be unaffected. Basically if I can get this working, I should be good to go: describe("ANGULAR Manually ticking the Jasmine Mock Clock", function() { var timerCallback, $timeout; beforeEach(inject(function($injector) { $timeout = $injector.get('$timeout'); timerCallback = jasmine.createSpy('timerCallback'); jasmine.Clock.useMock(); })); it("causes a timeout to be called synchronously", function() { $timeout(function() { timerCallback(); }, 100); expect(timerCallback).not.toHaveBeenCalled(); jasmine.Clock.tick(101); expect(timerCallback).toHaveBeenCalled(); }); }); These two variations work, but do not help me: describe("Manually ticking the Jasmine Mock Clock", function() { var timerCallback; beforeEach(function() { timerCallback = jasmine.createSpy('timerCallback'); jasmine.Clock.useMock(); }); it("causes a timeout to be called synchronously", function() { setTimeout(function() { timerCallback(); }, 100); expect(timerCallback).not.toHaveBeenCalled(); jasmine.Clock.tick(101); expect(timerCallback).toHaveBeenCalled(); }); }); describe("ANGULAR Manually flushing $timeout", function() { var timerCallback, $timeout; beforeEach(inj

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