def test_rx_bit_flip_1(simulator, p, angle):
U = gates.X(target=0) + gates.CRx(control=0, target=1, angle="a")
H = paulis.Z(1) * paulis.I(0)
NM = BitFlip(p, 2)
O = ExpectationValue(U=U, H=H)
E = simulate(O, backend=simulator, samples=1000, variables={'a': angle}, noise=NM)
print(E)
print(p + numpy.cos(angle) - p * numpy.cos(angle))
assert (numpy.isclose(E, p + numpy.cos(angle) - p * numpy.cos(angle), atol=1.e-1))
def test_rx_bit_flip_1(simulator, p, angle):
qubit = 1
U = gates.X(target=0) + gates.CRx(control=0, target=1, angle=Variable('a'))
H = paulis.Z(1) * paulis.I(0)
NM = BitFlip(p, 2)
O = ExpectationValue(U=U, H=H)
E = simulate(O,
backend=simulator,
samples=1,
variables={'a': angle},
noise=NM)
print(E)
print(p + numpy.cos(angle) - p * numpy.cos(angle))