def test_priority(self):
processes = []
t1 = time.time_ns()
processes.append(create_process(self.f3))
processes.append(create_process(self.f2))
processes.append(create_process(self.f1))
concurrent.futures.wait(processes)
t2 = time.time_ns()
delta = (t2 - t1) * (10**-9)
self.assertGreaterEqual(delta, 5)
self.assertLessEqual(delta, 5.5)
self.assertEqual((1, 2, 3), tuple(results))
def test_one_second_three_processes(self):
processes = []
t1 = time.time_ns()
for _ in range(3):
processes.append(create_process(self.one_second_three_processes))
concurrent.futures.wait(processes)
t2 = time.time_ns()
delta = (t2 - t1) * (10**-9)
self.assertGreaterEqual(delta, 1)
self.assertLessEqual(delta, 1.5)