Method test_inplace_math_error

xarray/tests/test_variable.py:1855–1861

(self)

            v += Variable("y", np.arange(5))

    def test_inplace_math_error(self):
        x = np.arange(5)
        v = IndexVariable(["x"], x)
        with pytest.raises(
            TypeError, match=r"Values of an IndexVariable are immutable"
        ):
            v += 1

    def test_reduce(self):
        v = Variable(["x", "y"], self.d, {"ignored": "attributes"})