Method test_write_region_mode

xarray/tests/test_backends.py:3517–3527

(self, mode)

    @pytest.mark.parametrize("mode", [None, "r+", "a"])
    def test_write_region_mode(self, mode) -> None:
        zeros = Dataset({"u": (("x",), np.zeros(10))})
        nonzeros = Dataset({"u": (("x",), np.arange(1, 11))})
        with self.create_zarr_target() as store:
            zeros.to_zarr(store, **self.version_kwargs)
            for region in [{"x": slice(5)}, {"x": slice(5, 10)}]:
                nonzeros.isel(region).to_zarr(
                    store, region=region, mode=mode, **self.version_kwargs
                )
            with xr.open_zarr(store, **self.version_kwargs) as actual:
                assert_identical(actual, nonzeros)

    @requires_dask
    def test_write_preexisting_override_metadata(self) -> None: