Angular 2 testing directives with events bound to document

I ran into an issue today where I was writing a test for a directive I created. The directive has a HostListener which binds to document:mouseup and the tests were not able to trigger that particular event with the typical triggerEventHandler function. There is currently a feature request to help with this issue. The workaround stated on that feature request wasn't very descriptive, so I had to figure out another way to call the bound event listener on my directive. Here's some code:



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