test(ingestion): assert the fixed Excel behaviour, not the defect - #485
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kevincostner17 wants to merge 1 commit into
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main went red at c0fbb08: 7064 passed, 2 failed. #478 found that preserve_leading_zeros was a no-op for clean_excel and, following the repo's convention of not using xfail, pinned the defect as it behaved: assert list(fd.clean_excel(xlsx)["zip"]) == [2134, 501, 10001] # DEFECT #480 then fixed that defect. Each PR was green on its own branch, and each was rebased on a main that did not contain the other, so nothing caught the pair until both had landed. The two assertions were tripwires for the fix, and the fix duly tripped them. Both now assert the repaired behaviour, and each docstring keeps the history so the tests still explain why they exist. The round-trip case gains nothing artificial -- it simply asserts that the Excel hop no longer undoes a correct CSV clean, which is the property that was missing in the first place. The opt-out and explicit-dtype paths are asserted alongside, so the fix cannot drift into applying unconditionally. Full suite 7066 passed / 0 failed, coverage 94.21%; ruff clean repo-wide.
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main is red — this fixes it
mainatc0fbb08: 7064 passed, 2 failed.Why
#478 found that
preserve_leading_zeroswas a no-op forclean_exceland — following the repo's convention of not usingxfail— pinned the defect as it behaved:#480 then fixed that defect.
Each PR was green on its own branch, and each was rebased on a
mainthat did not contain the other, so nothing caught the pair until both had landed. Those two assertions were tripwires for the fix, and the fix duly tripped them.The change
Both assertions now describe the repaired behaviour, and each docstring keeps the history so the tests still explain why they exist.
The round-trip case gains nothing artificial — it simply asserts that the Excel hop no longer undoes a correct CSV clean, which is the property that was missing in the first place. The opt-out (
preserve_leading_zeros=False) and explicit-dtypepaths are asserted alongside, so the fix cannot drift into applying unconditionally.Verification
tests/test_ingestion_roundtrip.py: 22 passed.ruff check .clean repo-wide.Process note
A green CI check on each PR independently is not evidence that
mainwill be green after both land. When a test pins a defect as current behaviour, it is a merge-order dependency — the second of the pair needs a rebase onto the first and a re-run before merging.