Yea I saw that.  On my local install I get a false positive when I run the tests due to composers autoloader not putting in some needed test class.

I can just fix the test, which is what I was working on, but I can move this back out to the factory.  The only reason I took it out was after including the service locator, there was only a return new AssetCacheManager();  Seemed kinda silly when it's now just invokable.