How to test on destroy scope

Question

How to unit testing an $destroy event of a Directive in angularjs?

I have the code in my directive:

scope.$on(\'$destroy\', function () {
    //clean som         


        

Answer 1

Here is what I do:

var destroyed = spyOn(scope, '$destroy').and.callThrough();
scope.$destroy();
expect(destroyed).toHaveBeenCalled();

unlike other answers I don't have to create flag variables that only make sense for testing, also, it makes more sense to me to use Jasmine spyOn and callThrough to check if the function $destry is being successfully called.