def test_trial_result_str():
q0 = cirq.LineQubit(0)
final_simulator_state = cirq.MPSState(qubit_map={q0: 0})
assert (str(
cirq.MPSTrialResult(
params=cirq.ParamResolver({}),
measurements={'m': np.array([[1]])},
final_simulator_state=final_simulator_state,
)) == "measurements: m=1\n"
"output state: [array([[[1., 0.]]])]")
def test_state_equal():
q0, q1 = cirq.LineQubit.range(2)
state0 = cirq.MPSState(qubit_map={q0: 0})
state1 = cirq.MPSState(qubit_map={q1: 0})
assert state0 == state0
assert state0 != state1
def test_empty_step_result():
q0 = cirq.LineQubit(0)
state = cirq.MPSState(qubit_map={q0: 0})
step_result = cirq.MPSSimulatorStepResult(state, measurements={'0': [1]})
assert str(step_result) == "0=1\n[array([[[1., 0.]]])]"