def test_make_node_shared(self):
"""Make sure we can provide `OpFromGraph.make_node` new shared inputs and get a valid `OpFromGraph`."""
x = at.scalar("x")
y = shared(1.0, name="y")
test_ofg = OpFromGraph([x], [x + y], on_unused_input="ignore")
assert test_ofg.shared_inputs == [y]
out = test_ofg(x)
y_clone = y.clone()
assert y_clone != y
y_clone.name = "y_clone"
out_new = test_ofg.make_node(*(out.owner.inputs[:1] +
[y_clone])).outputs[0]
assert "on_unused_input" in out_new.owner.op.kwargs
assert out_new.owner.op.shared_inputs == [y_clone]
out_fn = function([x], out_new)
assert np.array_equal(out_fn(1.0), 2.0)
y_clone.set_value(2.0)
assert np.array_equal(out_fn(1.0), 3.0)
def test_shared_to_nonshared_input(self):
"""Make sure that shared variables can be replaced with non-shared variables."""
x = at.scalar("x")
y = shared(1.0, name="y")
test_ofg = OpFromGraph([], [y])
assert test_ofg.shared_inputs == [y]
out_1_fn = function([], test_ofg())
res_1 = out_1_fn()
assert np.array_equal(res_1, 1.0)
test_ofg_new = test_ofg.make_node(x)
assert test_ofg_new.op.shared_inputs == []
out_2_fn = function([x], test_ofg_new.outputs[0])
res_2 = out_2_fn(np.array(1.0, dtype=config.floatX))
assert np.array_equal(res_2, 1.0)