TST: Reduce deep copies in the test suite #62970
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jbrockmendel
reviewed
Nov 4, 2025
| def test_to_xarray_index_types(self, index_flat, request): | ||
| # MultiIndex is tested in test_to_xarray_with_multiindex | ||
| index = index_flat | ||
| index = index_flat.copy(deep=False) |
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not a super-strong opinion, but needing to do this as a policy feels weird.
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OK sure I can remove this case, but generally I feel like always some risk mutating a pytest fixture
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Fair enough, I won’t complain
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Since most of the fixtures documentation that a copy is made to avoid changing attributes of Index/Series, a shallow copy should just be necessary instead of using a deep copy. But IMO tests should not be mutating fixtures