def test_toposort():
g0 = Graph()
g0.output = Constant(1)
g1 = Graph()
in0 = Constant(g0)
value = Apply([in0], g1)
g1.output = value
order = list(toposort(g1.return_))
_check_toposort(order, g1.return_, succ_incoming)
def test_toposort2():
g0 = Graph()
g0.output = Constant(33)
g1 = Graph()
in0 = Constant(g0)
in1 = Constant(1)
v1 = Apply([in0, in1], g1)
v2 = Apply([in0, v1, in1], g1)
g1.output = v2
order = list(toposort(g1.return_))
_check_toposort(order, g1.return_, succ_incoming)