def test_equality(self):
xor1 = XorConst(Binary("a"), Binary("b"), Binary("c"), label="xor")
xor2 = XorConst(Binary("a"), Binary("b"), Binary("c"), label="xor")
xor3 = XorConst(Binary("b"), Binary("c"), Binary("a"), label="xor")
or1 = OrConst(Binary("a"), Binary("b"), Binary("c"), label="xor")
self.assertTrue(xor1 + 1 == xor2 + 1)
self.assertTrue(xor1 == xor2)
self.assertFalse(xor1 == or1)
self.assertFalse(xor1 == xor3)
def test_xor(self):
a, b, c = Qbit("a"), Qbit("b"), Qbit("c")
exp = XorConst(a, b, c, label="xor")
model = exp.compile()
self.assertTrue(model.energy({"a": 1, "b": 1, "c": 0, "aux_xor": 1}, vartype="BINARY") == 0)
self.assertTrue(model.energy({"a": 1, "b": 0, "c": 1, "aux_xor": 0}, vartype="BINARY") == 0)
self.assertTrue(model.energy({"a": 0, "b": 1, "c": 1, "aux_xor": 0}, vartype="BINARY") == 0)
self.assertTrue(model.energy({"a": 1, "b": 1, "c": 0, "aux_xor": 1}, vartype="BINARY") == 0)
self.assertTrue(model.energy({"a": 0, "b": 0, "c": 1, "aux_xor": 1}, vartype="BINARY") > 0)
self.assertTrue(model.energy({"a": 1, "b": 1, "c": 1, "aux_xor": 1}, vartype="BINARY") > 0)