def test_departure_process(self):
q1 = MapPh1N(MAP.exponential(1.0), PhaseType.exponential(2.0), 20)
q2 = MapPh1N(MAP.erlang(4, 1.0), PhaseType.erlang(3, 2.0), 20)
self.assertIsInstance(q1.departure, MAP)
self.assertIsInstance(q2.departure, MAP)
# Since queue is very long, arrival rate will be close to departure
# rate.
self.assertAlmostEqual(q1.departure.rate, q1.arrival_rate, 5)
self.assertAlmostEqual(q2.departure.rate, q2.arrival_rate, 5)
def test_utilization(self):
q1 = MapPh1N(MAP.exponential(1.0), PhaseType.exponential(2.0), 20)
q2 = MapPh1N(MAP.erlang(4, 1.0), PhaseType.erlang(3, 2.0), 20)
self.assertAlmostEqual(q1.utilization, 1 / 2)
self.assertAlmostEqual(q2.utilization, 3 / 8)