promises-as3, TestingPromise, and Mockolate

I've recently started using the promises-as3 library
(https://github.com/CodeCatalyst/promise-as3) for my (possibly)
asynchronous calls. After a slight learning curve, I've got it working in
my code and it's been fantastic to use. No more event/commands/callbacks!

After I got everything working, I started writing my unit tests. FML! Unit
testing methods that use/return promises has been a pain in the ass to say
the least. Has anyone used the promises-as3 library and had good success
writing unit tests for them? Luckily I found the TestingPromise library
(https://github.com/Hyzhak/testing-promise-as3) but it has its own
limitations unfortunately, such as nesting calls.

Lastly, when using mockolate and [Mock]ing a class that has methods with a
Promise return type, even though the method has been mocked, it is executing
the real function... Has anyone seen this issue?

Anyway, hoping there are folks out there that have had some success unit
testing methods using promises. Any insights?

Thanks!