Best Python code snippet using pandera_python
test_schemas.py
Source:test_schemas.py
...427 with pytest.raises(errors.SchemaError):428 schema.validate(df)429 else:430 schema.validate(df)431def test_coerce_dtype_in_dataframe():432 """Tests coercions of datatypes, especially regarding nullable integers."""433 df = pd.DataFrame(434 {435 "column1": [10.0, 20.0, 30.0],436 "column2": ["2018-01-01", "2018-02-01", "2018-03-01"],437 "column3": [1, 2, None],438 "column4": [1.0, 1.0, np.nan],439 }440 )441 # specify `coerce` at the Column level442 schema1 = DataFrameSchema(443 {444 "column1": Column(int, Check(lambda x: x > 0), coerce=True),445 "column2": Column(datetime, coerce=True),...
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