def malicious_calculate_expectation_values(
backend: QuantumSimulator,
estimation_tasks: List[EstimationTask]) -> List[ExpectationValues]:
correct_output = calculate_exact_expectation_values(
backend=backend, estimation_tasks=estimation_tasks)
return correct_output[:-1]
def test_calculate_exact_expectation_values(self, simulator,
estimation_tasks):
expectation_values_list = calculate_exact_expectation_values(
simulator, estimation_tasks)
assert len(expectation_values_list) == 3
for expectation_values, task in zip(expectation_values_list,
estimation_tasks):
assert len(expectation_values.values) == len(task.operator.terms)
def test_calculate_exact_expectation_values(self, simulator,
estimation_tasks,
target_expectations):
expectation_values_list = calculate_exact_expectation_values(
simulator, estimation_tasks)
for expectation_values, target, task in zip(expectation_values_list,
target_expectations,
estimation_tasks):
assert len(expectation_values.values) == len(task.operator.terms)
# TODO: add tests for correlations and covariances
np.testing.assert_array_almost_equal(expectation_values.values,
target.values)
def test_calculate_exact_expectation_values_fails_with_non_simulator(
self, estimation_tasks):
backend = MockQuantumBackend()
with pytest.raises(AttributeError):
expectation_values_list = calculate_exact_expectation_values(
backend, estimation_tasks)