def test_basic_qubit_hash(): fake_engine = "Fake" qubit0 = _qubit.BasicQubit(fake_engine, 0) qubit1 = _qubit.BasicQubit(fake_engine, 1) assert hash(qubit0) != hash(qubit1) qubit0.id = -1 qubit1.id = -1 # Important that weakref.WeakSet in projectq.cengines._main.py works. assert hash(qubit0) != hash(qubit1)
def test_basic_qubit_comparison(id0, id1, expected):
fake_engine = "Fake"
fake_engine2 = "Fake2"
qubit0 = _qubit.BasicQubit(fake_engine, id0)
qubit1 = _qubit.BasicQubit(fake_engine, id1)
qubit2 = _qubit.BasicQubit(fake_engine2, id0)
# Different engines
assert not (qubit2 == qubit0)
assert not (qubit2 == qubit1)
assert qubit2 != qubit0
assert qubit2 != qubit1
# Same engines
assert (qubit0 == qubit1) == expected
def test_basic_qubit_hash():
fake_engine = "Fake"
a = _qubit.BasicQubit(fake_engine, 1)
b = _qubit.BasicQubit(fake_engine, 1)
c = _qubit.WeakQubitRef(fake_engine, 1)
assert a == b and hash(a) == hash(b)
assert a == c and hash(a) == hash(c)
# For performance reasons, low ids should not collide.
assert len({hash(_qubit.BasicQubit(fake_engine, e))
for e in range(100)}) == 100
# Important that weakref.WeakSet in projectq.cengines._main.py works.
# When id is -1, expect reference equality.
x = _qubit.BasicQubit(fake_engine, -1)
y = _qubit.BasicQubit(fake_engine, -1)
# Note hash(x) == hash(y) isn't technically a failure, but it's surprising.
assert x != y and hash(x) != hash(y)
def test_basic_qubit_str(qubit_id):
fake_engine = "Fake"
qubit = _qubit.BasicQubit(fake_engine, qubit_id)
assert str(qubit) == str(qubit_id)
