Windows tests

[ludoo]

@andrewesweet I played around with zugbruecke as a quick way to verify if running Python uner Wine was feasible, and it seems to work.

I get a bunch of errors related to the dependency lock file, a bunch of FileNotFoundError in cleanup, but other than that tests seem to run.

Do you think it's worth the effort to package everything into a container, so (Wine) Windows tests can run in Cloud Build without the need to spin up Windows VMs?

[andrewesweet]

Unfortunately I don't think this helps with the issues I saw. I think they were due to OS behaviour rather than the Python implementation on Windows. I'm therefore not confident running under Wine would reproduce the issues.