I finally found a hack for this problem. I created a new class that extends
the one I want to override the constructor. My code looks like this:
var MyObject = function() {
// constructor
};
My setup method in my test have this in:
var tmp = MyObject;
var ExtendedMyObject = function() {};
goog.inherits(ExtendedMyObject, MyObject);
MyObject = ExtendedMyObject;
And now my teardown:
MyObject = tmp;
You probably noticed that I'm using Google Closure. It provides a easy way
to manage dependencies and inheritance. I was already using it in my
project so I kept using it in this case.
Feel free to submit a better response to my initial problem.
Also, why SinonJs doesn't override the constructor (if it's the right name
for this) of an object like this? Is there a reason?
Thank you!
Le mercredi 25 juillet 2012 11:11:58 UTC-4, Jean-Philippe Poulin de Courval
a écrit :
> Hi everyone, I'm a newbie to sinonjs and I need help. I want to know, how
> can I mock the constructor function of an class? For example, if I have
> this code:
> var MyObject = function() {
> // constructor
> };
> MyObject.prototype.aMethod = function() { ... };
> How can I mock this object to replace the constructor with my own
> function? So, when I will create a new object by doing var aObject = new
> MyObject(); it will not call the real constructor but only the function I
> provided.
> I've tried this without success:
> var mock = sinon.mock(MyObject.prototype);
> mock.expects('constructor').returns({ Dispose: function() {} });
> And also:
> var mock = sinon.mock(MyObject.prototype);
> mock.expects('constructor').returns({ Dispose: function() {} });
> So, how can I do that? Is it possible? What is the correct way to do
> something like this?
> Thanks for your help!
