Method test_open_netcdf3

xarray/tests/test_backends_datatree.py:386–393

(self, tmpdir)

    @requires_netCDF4
    def test_open_netcdf3(self, tmpdir) -> None:
        filepath = tmpdir / "test.nc"
        ds = xr.Dataset({"foo": 1})
        ds.to_netcdf(filepath, format="NETCDF3_CLASSIC")

        expected_dt = DataTree(ds)
        roundtrip_dt = load_datatree(filepath)  # must use netCDF4 engine
        assert_equal(expected_dt, roundtrip_dt)

    @requires_h5netcdf
    @requires_netCDF4