def test_qid_pair():
q0, q1, q2, q3 = cirq.LineQubit.range(4)
e1 = cirq.SymmetricalQidPair(q0, q1)
e2 = cirq.SymmetricalQidPair(q1, q0)
e3 = cirq.SymmetricalQidPair(q2, q3)
assert e1 == e2
assert e2 != e3
assert repr(e1) == "cirq.QidPair(cirq.LineQubit(0), cirq.LineQubit(1))"
assert len(e1) == 2
a, b = e1
assert (a, b) == (q0, q1)
a, b = e2
assert (a, b) == (q0, q1)
assert q0 in e1
assert q1 in e1
assert q2 not in e1
set1 = frozenset([e1, e2])
set2 = frozenset([e2, e3])
assert len(set1) == 1
assert len(set2) == 2
with pytest.raises(ValueError, match='A QidPair cannot have identical qids.'):
cirq.SymmetricalQidPair(q0, q0)
def test_qid_pair_deprecated():
q0, q1, q2, q3 = cirq.LineQubit.range(4)
with cirq.testing.assert_deprecated('device.metadata',
deadline='v0.15',
count=3):
e1 = cirq.SymmetricalQidPair(q0, q1)
e2 = cirq.SymmetricalQidPair(q1, q0)
e3 = cirq.SymmetricalQidPair(q2, q3)
assert e1 == e2
assert e2 != e3
assert repr(e1) == "cirq.QidPair(cirq.LineQubit(0), cirq.LineQubit(1))"
assert len(e1) == 2
a, b = e1
assert (a, b) == (q0, q1)
a, b = e2
assert (a, b) == (q0, q1)
assert q0 in e1
assert q1 in e1
assert q2 not in e1
set1 = frozenset([e1, e2])
set2 = frozenset([e2, e3])
assert len(set1) == 1
assert len(set2) == 2
with cirq.testing.assert_deprecated('device.metadata',
deadline='v0.15',
count=1):
with pytest.raises(ValueError,
match='A QidPair cannot have identical qids.'):
cirq.SymmetricalQidPair(q0, q0)
def qid_pairs(self) -> FrozenSet['cirq.SymmetricalQidPair']:
"""Returns a list of qubit edges on the device.
Returns:
All qubit pairs that are less or equal to the control radius apart.
"""
qs = self.qubits
return frozenset([
cirq.SymmetricalQidPair(q, q2) for q in qs for q2 in qs
if q < q2 and self.distance(q, q2) <= self.control_radius
])
def qid_pairs(self) -> FrozenSet['cirq.SymmetricalQidPair']:
"""Returns a list of qubit edges on the device.
Returns:
All qubit pairs that are less or equal to the control radius apart.
"""
with _compat.block_overlapping_deprecation('device\\.metadata'):
qs = self.qubits
return frozenset([
cirq.SymmetricalQidPair(q, q2) for q in qs for q2 in qs
if q < q2 and self.distance(q, q2) <= self.control_radius
])
def qid_pairs(self) -> FrozenSet['cirq.SymmetricalQidPair']:
"""Returns a list of qubit edges on the device, defined by the gate
definitions.
Returns:
The list of qubit edges on the device.
"""
return frozenset([
cirq.SymmetricalQidPair(pair[0], pair[1])
for gate_defs in self.gate_definitions.values()
for gate_def in gate_defs if gate_def.number_of_qubits == 2
for pair in gate_def.target_set
if len(pair) == 2 and pair[0] < pair[1]
])
def qid_pairs(self) -> FrozenSet['cirq.SymmetricalQidPair']:
"""Returns a list of qubit edges on the device, defined by the gate
definitions.
Returns:
The list of qubit edges on the device.
"""
with _compat.block_overlapping_deprecation('device\\.metadata'):
return frozenset([
cirq.SymmetricalQidPair(pair[0], pair[1])
for gate_defs in self.gate_definitions.values()
for gate_def in gate_defs if gate_def.number_of_qubits == 2
for pair in gate_def.target_set
if len(pair) == 2 and pair[0] < pair[1]
])
