Method test_get_variable_tensor

cvxpy/tests/test_python_backends.py:2859–2867

(self, scipy_backend)

        return backend

    def test_get_variable_tensor(self, scipy_backend):
        outer = scipy_backend.get_variable_tensor((2,), 1)
        assert outer.keys() == {1}, "Should only be in variable with ID 1"
        inner = outer[1]
        assert inner.keys() == {-1}, "Should only be in parameter slice -1, i.e. non parametrized."
        tensor = inner[-1]
        assert sp.issparse(tensor), "Should be a scipy sparse matrix or array"
        assert tensor.shape == (2, 2), "Should be a 1*2x2 tensor"
        assert np.all(tensor == np.eye(2)), "Should be eye(2)"

    @pytest.mark.parametrize("data", [np.array([[1, 2], [3, 4]]), sp.eye_array(2) * 4])
    def test_get_data_tensor(self, scipy_backend, data):