Warn when writing or closing a cache file fails - #15044
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| data = json.dumps(value, ensure_ascii=False, indent=2) | ||
| try: | ||
| f = path.open("w", encoding="UTF-8") | ||
| with path.open("w", encoding="UTF-8") as f: |
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Nitpick we now can use path.write_text
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ah yes! switched to path.write_text
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Warn when writing or closing a cache file fails (pytest-dev#15044)
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Fixes #15043.
cache.set()already warns when opening a cache file fails, but anOSErrorfrom writing or closing it currently escapes. Move the existing write into the same error handler so these failures also producePytestCacheWarning.The regression test covers open, write, and close failures. The write and close cases fail before the fix; all three pass afterward. A separate reproduction using a real file-size limit also fails on pytest 9.1.1 and unmodified main, then produces warnings with this fix.
Checks on macOS:
tox -e py313 -- -q: 4,607 passed, 51 skipped, 15 xfailed, 5 xpassed.tox -e linting: passed.JSON serialization and warning filters keep their existing behavior.
Co-developed by Poorva Barve and Codex.