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Add unit test for black formatting #261
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| import os | ||
| import pytest | ||
| import shlex | ||
| import subprocess | ||
| import sys | ||
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| @pytest.mark.skipif(sys.version_info < (3, 6), reason="Black requires Python 3.6+") | ||
| def test_black_formatting(): | ||
| # make sure we're in the right place | ||
| assert __file__.endswith("/tests/test_formatting.py") | ||
| prefect_dir = os.path.dirname(os.path.dirname(__file__)) | ||
| result = subprocess.call(shlex.split("black --check {}".format(prefect_dir))) | ||
| assert result == 0, "Prefect repo did not pass Black formatting!" | ||
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Could you explain why this assert is necessary?
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I was worried that this file might get moved inadvertently, without someone necessarily looking at it (for example if the tests directory were restructured), and causing the following line (that runs black against the root) to fail. If there's a way to always get the repo root, I'd use that instead, but I'm not sure how.
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Ah ok that makes sense, otherwise you might accidentally black check a larger directory or something 👍