Regression: the repo fails to clone on Windows

[LeXofLeviafan]

As per the title, the current version of the repo fails to clone on Windows due to the filesystem limitations: it crashes midway with an error message about a filename being too long. The result is a repo clone with half of the files missing (which can be confirmed by git status), and using the command git restore --staged * creates all of the missing files except for the one that caused the error.

The file in question is the cassette for google network handler test; it includes the entire URL (with some characters replaced by dashes, but still), and thus doesn't fit within the Windows filepath limits (270 chars of 260 allowed).

Proposed fix: custom test case IDs

P.S. …Actually, what's up with the cassette files organisation? Some are placed in tests/vcr_cassettes/, others in tests/vcr_cassettes/tests.test_bukuDb/, and others yet in tests/cassettes/test_buku/. Shouldn't they either be in one folder, or one per testfile but named accordingly (and gathered in one place)?