Tests are failing with the latest pytest (see #275).
This is a workaround to make running the tests works and should be removed once the tests work with the latest pytest.
Coverage remained the same at 99.743% when pulling aec1ba28dd022fdd7dfb1964c3955d0b2600ab53 on okin:feature/no_tests_failing_because_of_pytest_4 into b274f34a20f74b13290736e35338d2fe82c6bb0d on pydoit:master.
Tests are failing with the latest pytest (see #275). This is a workaround to make running the tests works and should be removed once the tests work with the latest pytest.