Mock date constructor with Jasmine

Question

I\'m testing a function that takes a date as an optional argument. I want to assert that a new Date object is created if the function is called without the argument.

Answer 1

this worked for me

var baseTime = new Date().getTime();
spyOn(window, 'Date').and.callFake(function() {
   return {getTime: function(){ return baseTime;}};
});