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How to use test_check_io_fn method in pandera

Best Python code snippet using pandera_python

test_decorators.py

Source:test_decorators.py

...346    """347    Test that check_io raise correct errors on unrecognized decorator arguments348    """349    @check_io(out=out)350    def test_check_io_fn(df):351        return df352    with pytest.raises(error, match=msg):353        test_check_io_fn(pd.DataFrame({"column": [1, 2, 3]}))354# required to be a global: see355# https://pydantic-docs.helpmanual.io/usage/postponed_annotations/356class OnlyZeroesSchema(SchemaModel):  # pylint:disable=too-few-public-methods357    """Schema with a single column containing zeroes."""358    a: Series[int] = Field(eq=0)359def test_check_types_arguments() -> None:360    """Test that check_types forwards key-words arguments to validate."""361    df = pd.DataFrame({"a": [0, 0]})362    @check_types()363    def transform_empty_parenthesis(364        df: DataFrame[OnlyZeroesSchema],365    ) -> DataFrame[OnlyZeroesSchema]:  # pylint: disable=unused-argument366        return df367    transform_empty_parenthesis(df)...

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