introduction.js

Jasmine testing function with callbacks ..







describe("Testing function callback", function () {



    it("calls the callback", function () {

        var callbackObject = new CallBackTest();

       

        // NB: a dummy object with function success so can be used to check callback was called

        var observer = {

            success: function() {}

        };



        // spies always need an object and a method

        spyOn(observer, "success");

       

        callbackObject.doIt(observer.success);



        expect(observer.success).toHaveBeenCalled();



    });



});



function CallBackTest() {



    this.doIt = function (success) {

        return success();

    };

}





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