def test_circut_success_resets_failures_counter(self):
circuit_breaker = CircuitBreaker(maximum_failures=3)
circuit_breaker.record_failure()
circuit_breaker.record_failure()
circuit_breaker.record_success()
circuit_breaker.record_failure()
circuit_breaker.record_failure()
assert circuit_breaker.current_state == 'closed'
def test_circuit_half_opens_and_closes_after_timeout(self, monotonic_mock):
circuit_breaker = CircuitBreaker(maximum_failures=1, reset_timeout_seconds=20)
assert circuit_breaker.allows_execution() is True
assert circuit_breaker.current_state == 'closed'
monotonic_mock.return_value = 100
circuit_breaker.record_failure()
assert circuit_breaker.allows_execution() is False
assert circuit_breaker.current_state == 'open'
monotonic_mock.return_value = 130
assert circuit_breaker.allows_execution() is True
assert circuit_breaker.current_state == 'half-open'
circuit_breaker.record_success()
assert circuit_breaker.allows_execution() is True
assert circuit_breaker.current_state == 'closed'