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How to use test_datatype_call method in pandera

Best Python code snippet using pandera_python

test_dtypes.py

Source:test_dtypes.py

...222        )223    assert isinstance(data_type(), pa.DataType)224    with pytest.raises(TypeError, match="DataType may not be instantiated"):225        pa.dtypes.DataType()226def test_datatype_call():227    """Test DataType call method."""228    class CustomDataType(pa.dtypes.DataType):229        """Custom data type."""230        def coerce(self, data_container: List[int]) -> List[str]:231            """Convert list of ints into a list of strings."""232            return [str(x) for x in data_container]233    custom_dtype = CustomDataType()234    coerced_data = custom_dtype([1, 2, 3, 4, 5])235    assert coerced_data == ["1", "2", "3", "4", "5"]236def test_datatype_alias(data_type: Any, pd_dtype: Any):237    """Test that a default pa.DataType can be constructed."""238    assert str(pandas_engine.Engine.dtype(data_type)) == str(pd_dtype)239def test_frozen_datatype(data_type: Any):240    """Test that pa.DataType instances are immutable."""...

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