``` platform darwin (10.14) -- Python 3.6.5, pytest-3.10.1, py-1.7.0, pluggy-0.8.1 ``` The bug of #110 was reintroduced by refactoring to the usage of `pathlib.Path`. On MacOS provided Path by `tmp_path` fixture is symlink and when `cd`ed into it, it changes into one prefixed by `/private`.