test: run tests in a directory which is actually writable

[kif]

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Fix the issue discussed about CI/CD not able to run on edna-site.

[t20100]

Sounds good if it no longer writes in the installed folder!

[t20100]

Doc says:

The user of mkdtemp() is responsible for deleting the temporary directory and its contents when done with it.

IMO best to use tempfile.TemporaryDirectory context manager to take care of it

[vallsv]

Could we link the issue related to this change, because it don't really see why the tests would not be read only.

[t20100]

Could we link the issue related to this change, because it don't really see why the tests would not be read only.

related to #4225

It's pytest writing some cache folder where the Python package is installed.... It really shouldn't.

[vallsv]

It's pytest writing some cache folder where the Python package is installed.... It really shouldn't.

Thanks. Yes, i think it would be good to feedback the problem upstream if it's not already the case. So what we could add a related comment in code of this PR, so what it could be drop in the future (in case the pytest people think that's a problem on there side).

My 2 cents.