Method test_cmp_local_file

xarray/tests/test_backends.py:6593–6626

(self)

            yield actual, expected

    def test_cmp_local_file(self) -> None:
        with self.create_datasets() as (actual, expected):
            assert_equal(actual, expected)

            # global attributes should be global attributes on the dataset
            assert "NC_GLOBAL" not in actual.attrs
            assert "history" in actual.attrs

            # we don't check attributes exactly with assertDatasetIdentical()
            # because the test DAP server seems to insert some extra
            # attributes not found in the netCDF file.
            assert actual.attrs.keys() == expected.attrs.keys()

        with self.create_datasets() as (actual, expected):
            assert_equal(actual[{"l": 2}], expected[{"l": 2}])

        with self.create_datasets() as (actual, expected):
            # always return arrays and not scalars
            # scalars will be promoted to unicode for numpy >= 2.3.0
            assert_equal(actual.isel(i=[0], j=[-1]), expected.isel(i=[0], j=[-1]))

        with self.create_datasets() as (actual, expected):
            assert_equal(actual.isel(j=slice(1, 2)), expected.isel(j=slice(1, 2)))

        with self.create_datasets() as (actual, expected):
            indexers = {"i": [1, 0, 0], "j": [1, 2, 0, 1]}
            assert_equal(actual.isel(**indexers), expected.isel(**indexers))

        with self.create_datasets() as (actual, expected):
            indexers2 = {
                "i": DataArray([0, 1, 0], dims="a"),
                "j": DataArray([0, 2, 1], dims="a"),
            }
            assert_equal(actual.isel(**indexers2), expected.isel(**indexers2))

    def test_compatible_to_netcdf(self) -> None:
        # make sure it can be saved as a netcdf