Method test_reduce_no_axis

xarray/tests/test_dataset.py:6379–6389

(self)

            ds.reduce(mean_only_one_axis)

    def test_reduce_no_axis(self) -> None:
        def total_sum(x):
            return np.sum(x.flatten())

        ds = Dataset({"a": (["x", "y"], [[0, 1, 2, 3, 4]])})
        expected = Dataset({"a": ((), 10)})
        actual = ds.reduce(total_sum)
        assert_identical(expected, actual)

        with pytest.raises(TypeError, match=r"unexpected keyword argument 'axis'"):
            ds.reduce(total_sum, dim="x")

    def test_reduce_keepdims(self) -> None:
        ds = Dataset(