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How to use test_register_before_schema_definitions method in pandera

Best Python code snippet using pandera_python

test_extensions.py

Source:test_extensions.py

...231        pd.DataFrame({"col1": [1000], "col2": [-100.0]}),232    ]:233        with pytest.raises(pa.errors.SchemaError):234            Schema.validate(invalid_data)235def test_register_before_schema_definitions() -> None:236    """Test that custom checks need to be registered before use."""237    # pylint: disable=missing-class-docstring,too-few-public-methods238    # pylint: disable=function-redefined239    with pytest.raises(240        pa.errors.SchemaInitError,241        match="custom check 'custom_eq' is not available",242    ):243        class Schema1(pa.SchemaModel):244            col: pa.typing.Series[int] = pa.Field(custom_eq=1)245    with pytest.raises(AttributeError):246        pa.Check.custom_eq(1)247    @extensions.register_check_method(statistics=["val"])248    def custom_eq(pandas_obj, val):249        return pandas_obj == val...

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