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How to use test_ordered_dataframe method in pandera

Best Python code snippet using pandera_python

test_schemas.py

Source:test_schemas.py

...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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