def test_many_hubs(self):
# Create and close a Hub in many threads. If the hub does not garbage
# collect, then this will run out of file descriptors.
for i in range(100):
hub = gruvi.Hub()
with gruvi.switch_back(timeout=0, hub=hub):
self.assertRaises(gruvi.Timeout, hub.switch)
hub.close()
hub.switch()
gc.collect()
def test_callback_order(self):
# Callbacks run with run_callback() should be run in the order they
# were added.
hub = gruvi.Hub()
result = []
for i in range(100):
hub.run_callback(result.append, i)
hub.close()
hub.switch()
self.assertEqual(len(result), 100)
self.assertEqual(result, list(range(100)))
def test_close_from_thread(self):
# Calling hub.close() from a thread should cause the hub to exit.
def close_hub():
time.sleep(0.01)
hub.close()
t1 = threading.Thread(target=close_hub)
t1.start()
hub = gruvi.Hub()
self.assertIsNone(hub.switch())
self.assertFalse(hub.is_alive())
t1.join()
def test_cleanup(self):
# After we close() a Hub, it should be garbage collectable, including
# its event loop.
hub = gruvi.Hub()
gruvi.sleep(0)
ref1 = weakref.ref(hub)
ref2 = weakref.ref(hub.loop)
hub.close()
hub.switch()
del hub
gc.collect()
self.assertIsNone(ref1())
self.assertIsNone(ref2())
def mem_hub(self):
self.add_result(sizeof(gruvi.Hub(), exclude=('_log', '_thread')))
def test_close(self):
# Calling hub.close() should cause the hub to exit.
hub = gruvi.Hub()
hub.run_callback(hub.close)
self.assertIsNone(hub.switch())
self.assertFalse(hub.is_alive())