Running test_standarddir would pollute the user's home with
`~/.cache/qute_test`.
The `no_cachedir_tag` fixture was supposed to prevent this, but was not
working because [usefixtures does not work on fixtures]
(https://github.com/pytest-dev/pytest/issues/1014).
This fixes the fixture to actually prevent cachedir creation, but
applies it to tests individually (or by class) rather than with autouse
because the cachedir tests cannot pass if it is working.
Running the tests would create ~/.config/qute_test and
~/.local/share/qute_test on the user's machine. The test_standardir
module needed a bit more mocking to prevent it from cluttering the
user's machine.
Two tests that created the data dir were fixed by passing basedir in
args, and one test that created the config dir was fixed by patching
os.makedirs to a noop.
Per one of the diff comments on #1597:
> I used to use a tuple for constant things, but nowadays I'd actually
> prefer a list as a tuple is something more heterogeneous (i.e. it
> makes sense to have a `(x, y)` point as a tuple, but a list of points
> would be a list).
> At some point I should probably change it to a list everywhere 😉
The typical test path for a legacy FIFO was something like:
/tmp/pytest-92/test_correct_socket_name0/qutebrowser_test/qutebrowser-ipc-dfc627b5be8602ea0e9cd258b73c0bc3
This is probably too long for a Unix local domain socket (104 chars max).
