General: add pytest for get_wf_files

[mirpedrol]

Adds tests messing from https://github.com/nf-core/tools/pull/3722#pullrequestreview-3150840991 I also fixed a test which was not testing what it was intended to.

[mirpedrol]

@nf-core-bot update textual snapshots

[codecov[bot]]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :white_check_mark: Project coverage is 77.46%. Comparing base (ef733fa) to head (4cb0efc). :warning: Report is 1 commits behind head on dev.

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