This tool is really remarkably good! As in issue #54, I needed some kind of dump file to make data visualization comparisons in diff tools simpler on failed snapshot tests; this pull request just demonstrates a small change I made on my local installation that made the workflow very nice:
Run the tests: pytest
Use a diff tool to investigate failed tests (currently I just use PyCharm's diff tool, and compare the original file (e.g. myplot.png) with the observed file (e.g. myplot.dump.png), which has the same ending file extension to make it easier on diff tools.
If approving, then update the snapshot with deletion to delete the dump files: pytest --snapshot-update --allow-snapshot-deletion
A caveat is file cleanup; I only found that the snapshot.assert_match_dir() function worked with --allow-snapshot-deletion, so a better implementation might be to do extra file deletion also on assert_match(). But using asset_match_dir() for now has been fine.
Anyway, I'm sure there is a better way to do this; I hope you'll consider including dump files as a feature for this really great tool!
Hi,
This tool is really remarkably good! As in issue #54, I needed some kind of dump file to make data visualization comparisons in diff tools simpler on failed snapshot tests; this pull request just demonstrates a small change I made on my local installation that made the workflow very nice:
pytestpytest --snapshot-update --allow-snapshot-deletionA caveat is file cleanup; I only found that the
snapshot.assert_match_dir()function worked with--allow-snapshot-deletion, so a better implementation might be to do extra file deletion also onassert_match(). But usingasset_match_dir()for now has been fine.Anyway, I'm sure there is a better way to do this; I hope you'll consider including dump files as a feature for this really great tool!
Best wishes,
Nick