Method test_constructor_multiindex

xarray/tests/test_dataset.py:658–675

(self)

        assert "x" not in ds.xindexes

    def test_constructor_multiindex(self) -> None:
        midx = pd.MultiIndex.from_product([["a", "b"], [1, 2]], names=("one", "two"))
        coords = Coordinates.from_pandas_multiindex(midx, "x")

        ds = Dataset(coords=coords)
        assert_identical(ds, coords.to_dataset())

        with pytest.warns(
            FutureWarning,
            match=r".*`pandas.MultiIndex`.*no longer be implicitly promoted.*",
        ):
            Dataset(data_vars={"x": midx})

        with pytest.warns(
            FutureWarning,
            match=r".*`pandas.MultiIndex`.*no longer be implicitly promoted.*",
        ):
            Dataset(coords={"x": midx})

    def test_constructor_custom_index(self) -> None:
        class CustomIndex(Index): ...