Re-enables flake8 testing for the tests directory via setup.cfg.
Adds at least minimal docstrings to all of the existing tests, adding more detailed docstrings where needed.
Tidies up a few other flake8 issues such as overlong lines.
Fixes some minor typing issues within the tests.
The setup.cfg currently turns off some mypy checking in tests through a [mypy-tests.*] section, notably allowing untyped_calls, untyped_defs and incomplete_defs. I have kept this setting - typing all of the test signatures doesn't seem a priority.
This PR:
flake8testing for thetestsdirectory viasetup.cfg.flake8issues such as overlong lines.The
setup.cfgcurrently turns off somemypychecking inteststhrough a[mypy-tests.*]section, notably allowinguntyped_calls,untyped_defsandincomplete_defs. I have kept this setting - typing all of the test signatures doesn't seem a priority.Closes #63