Seems that uopz has superseded php-test-helpers. Updated the exit overloading and adjusted some tests based on the new behavior of not echoing out the argument passed to exit().
Finished up all the low hanging fruit (working the classes I already started
that were just shy of 100% coverage). Just shy of 80% coverage at this point.
Also fixed a few minor bugs and reworked Browser class to not use the constant
UNIT_TESTING so I could get the class to 100% coverage. Adds a dependency of
testing_helpers which I believe is available on Travis CI by default. Up to 75%
coverage, w00t w00t!
Added a hack to work locally for me. May move to using composer to obtain / install vfsStream just didn't like the "vendor" directory, will look into using a custom directory so it can be hidden git ignored.