How to use test_ordered_dataframe method in pandera

Best Python code snippet using pandera_python

test_schemas.py

Source:test_schemas.py Github

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...225 ),226 ),227 ],228)229def test_ordered_dataframe(230 columns: Dict[str, Column], index: MultiIndex231) -> None:232 """Test that columns are ordered."""233 schema = DataFrameSchema(columns=columns, index=index, ordered=True)234 df = pd.DataFrame(235 data=[[1, 2, 3]],236 columns=["a", "a", "b"],237 index=pd.MultiIndex.from_arrays(238 [[1], [2], [3]], names=["a", "a", "b"]239 ),240 )241 assert isinstance(schema.validate(df), pd.DataFrame)242 # test optional column243 df = pd.DataFrame(...

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