def test_len(self):
q = Queue(hub=self.hub)
self.assertEqual(len(q), 0)
q.append('an item')
self.assertEqual(len(q), 1)
q.appendleft('another item')
self.assertEqual(len(q), 2)
q.clear()
self.assertEqual(len(q), 0)
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_appendleft_full(self):
q = Queue(1, hub=self.hub)
q.appendleft('an item')
self.assertEqual(len(q), 1)
self.assert_(q.full())
start = time.time()
self.assertRaises(greennet.Timeout,
q.appendleft,
'another_item',
IMMEDIATE_THRESHOLD)
self.assert_(time.time() - start < IMMEDIATE_THRESHOLD * 2)
self.assertEqual(len(q), 1)
self.assert_(q.full())
q.pop()
q.appendleft('an item')
self.assertEqual(len(q), 1)
self.assert_(q.full())
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')
