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my/core/pandas tests: fix weird pytest error when constructing dataclass inside a def

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can quickly reproduce by running pytest tests/tz.py tests/core/test_pandas.py
possibly will be resolved after fix in pytest?
see https://github.com/pytest-dev/pytest/issues/7856
This commit is contained in:
Dima Gerasimov 2023-05-24 22:13:00 +01:00 • committed by karlicoss
parent a98bc6daca
commit 04d976f937
1 changed files with 11 additions and 5 deletions
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16
my/core/pandas.py
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@ -165,6 +165,16 @@ def as_dataframe(it: Iterable[Res[Any]], schema: Schema | None = None) -> DataFr
return pd.DataFrame(to_jsons(it), columns=columns)
# ugh. in principle this could be inside the test
# might be due to use of from __future__ import annotations
# can quickly reproduce by running pytest tests/tz.py tests/core/test_pandas.py
# possibly will be resolved after fix in pytest?
# see https://github.com/pytest-dev/pytest/issues/7856
@dataclasses.dataclass
class _X:
x: int
def test_as_dataframe() -> None:
import pytest
@ -176,10 +186,6 @@ def test_as_dataframe() -> None:
assert len(as_dataframe([])) == 0
@dataclasses.dataclass
class X:
x: int
# makes sense to specify the schema so the downstream program doesn't fail in case of empty iterable
df2: DataFrameT = as_dataframe([], schema=X)
df2: DataFrameT = as_dataframe([], schema=_X)
assert list(df2.columns) == ['x', 'error']