Fix decimal.FloatOperation error in pytest.approx Decimal __repr__ #13543
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Hi @nicoddemus please have a look on the PR once. Thank you |
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Co-authored-by: Bruno Oliveira <[email protected]>
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Backport to 8.4.x: 💚 backport PR created✅ Backport PR branch: Backported as #13555 🤖 @patchback |
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Fixes #13530 --------- Co-authored-by: AD <[email protected]> Co-authored-by: Bruno Oliveira <[email protected]> (cherry picked from commit 111685c)
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…13555) Fixes #13530 --------- (cherry picked from commit 111685c) Co-authored-by: Aditi De <[email protected]> Co-authored-by: AD <[email protected]> Co-authored-by: Bruno Oliveira <[email protected]>
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Fix #13530
Summary
This PR addresses a decimal.FloatOperation error that happens when calling repr() on a pytest.approx object created with a decimal.Decimal value. The error arises from comparing and formatting Decimal and float values without proper conversion, which activates the FloatOperation trap.
Changes
I modified the repr method to carefully handle Decimal and float attributes. This is done by explicitly converting float values to Decimal before comparisons and formatting.
I added checks for None to prevent invalid comparisons.
I avoided direct comparisons between float and Decimal that can lead to FloatOperation exceptions.
Testing
I created a minimal test to reproduce the FloatOperation error from pytest.approx(Decimal)'s repr().
The test passes after applying this fix, confirming that the issue is resolved.