def test_wait_until_empty_timeout(self):
q = Queue(hub=self.hub)
q.append('an item')
start = time.time()
self.assertRaises(greennet.Timeout,
q.wait_until_empty,
IMMEDIATE_THRESHOLD)
self.assert_(time.time() - start < IMMEDIATE_THRESHOLD * 2)
def test_popleft_wait_for_append(self):
q = Queue(hub=self.hub)
timeout = 0.5
self.hub.call_later(greennet.greenlet(q.append), timeout, 'an item')
start = time.time()
self.assertEqual(q.popleft(), 'an item')
duration = time.time() - start
self.assert_(duration < timeout + IMMEDIATE_THRESHOLD
and duration > timeout - IMMEDIATE_THRESHOLD)
def test_appendleft(self):
q = Queue(hub=self.hub)
self.assertEqual(len(q), 0)
q.appendleft('an item')
self.assertEqual(len(q), 1)
self.assertEqual(q.pop(), 'an item')
q.appendleft('an item')
q.appendleft('another item')
self.assertEqual(len(q), 2)
self.assertEqual(q.pop(), 'an item')
self.assertEqual(q.pop(), 'another item')
def test_append_full(self):
q = Queue(1, hub=self.hub)
q.append('an item')
self.assertEqual(len(q), 1)
self.assert_(q.full())
start = time.time()
self.assertRaises(greennet.Timeout,
q.append,
'another_item',
IMMEDIATE_THRESHOLD)
self.assert_(time.time() - start < IMMEDIATE_THRESHOLD * 2)
self.assertEqual(len(q), 1)
self.assert_(q.full())
q.pop()
q.append('an item')
self.assertEqual(len(q), 1)
self.assert_(q.full())
def test_full(self):
q = Queue(1, hub=self.hub)
self.assertEqual(len(q), 0)
self.assertFalse(q.full())
q.append('an item')
self.assertEqual(len(q), 1)
self.assert_(q.full())
q.pop()
self.assertEqual(len(q), 0)
self.assertFalse(q.full())
def test_clear(self):
q = Queue(hub=self.hub)
q.append('an item')
q.append('another item')
self.assertEqual(len(q), 2)
q.clear()
self.assertEqual(len(q), 0)
def test_wait_until_empty_on_clear(self):
q = Queue(hub=self.hub)
q.append('an item')
q.append('another item')
timeout = 0.5
self.hub.call_later(greennet.greenlet(q.clear), timeout)
start = time.time()
q.wait_until_empty()
duration = time.time() - start
self.assert_(duration < timeout + IMMEDIATE_THRESHOLD
and duration > timeout - IMMEDIATE_THRESHOLD)
def test_appendleft_wait_for_clear(self):
q = Queue(1, hub=self.hub)
q.append('an item')
timeout = 0.5
self.hub.call_later(greennet.greenlet(q.clear), timeout)
start = time.time()
q.appendleft('an item')
duration = time.time() - start
self.assert_(duration < timeout + IMMEDIATE_THRESHOLD
and duration > timeout - IMMEDIATE_THRESHOLD)
self.assertEqual(q.pop(), 'an item')
def test_popleft(self):
q = Queue(hub=self.hub)
self.assertEqual(len(q), 0)
q.append('an item')
q.append('another item')
self.assertEqual(len(q), 2)
self.assertEqual(q.popleft(), 'an item')
self.assertEqual(len(q), 1)
self.assertEqual(q.popleft(), 'another item')
self.assertEqual(len(q), 0)
start = time.time()
self.assertRaises(greennet.Timeout,
q.popleft,
IMMEDIATE_THRESHOLD)
self.assert_(time.time() - start < IMMEDIATE_THRESHOLD * 2)
self.assertEqual(len(q), 0)
from py.magic import greenlet
import greennet
from greennet.queue import Queue
def popper(queue):
print queue.pop()
if __name__ == '__main__':
queue = Queue()
greennet.schedule(greenlet(popper), queue)
queue.append('hello world')
greennet.run()