def queue_persistence(self, queue, tdir, qdir):
self.assertEqual(queue.qsize(), 0)
for request in self.fake_requests:
queue.put(request)
self.assertEqual(queue.qsize(), len(self.fake_requests))
del queue
queue = Queue(qdir, tempdir=tdir)
self.assertEqual(queue.qsize(), len(self.fake_requests))
for _ in range(len(self.fake_requests)):
queue.get()
self.assertEqual(queue.qsize(), 0)
def test_ClearOldFile(self):
"""put until reaching chunksize, then get without calling task_done"""
q = Queue(self.path, chunksize=10)
for i in range(15):
q.put('var1')
for i in range(11):
q.get()
q = Queue(self.path, chunksize=10)
self.assertEqual(q.qsize(), 15)
for i in range(11):
q.get()
q.task_done()
self.assertEqual(q.qsize(), 4)
def test_OpenCloseOneHundred(self):
"""Write 1000 items, close, reopen checking if all items are there"""
q = Queue(self.path)
for i in range(1000):
q.put('var%d' % i)
del q
q = Queue(self.path)
self.assertEqual(1000, q.qsize())
for i in range(1000):
data = q.get()
self.assertEqual('var%d' % i, data)
q.task_done()
with self.assertRaises(Empty):
q.get_nowait()
# assert adding another one still works
q.put('foobar')
data = q.get()
def test_OpenCloseSingle(self):
"""Write 1 item, close, reopen checking if same item is there"""
q = Queue(self.path)
q.put('var1')
del q
q = Queue(self.path)
self.assertEqual(1, q.qsize())
self.assertEqual('var1', q.get())
q.task_done()
def test_PartialWrite(self):
"""Test recovery from previous crash w/ partial write"""
q = Queue(self.path)
for i in range(100):
q.put('var%d' % i)
del q
with open(os.path.join(self.path, 'q00000'), 'ab') as f:
pickle.dump('文字化け', f)
q = Queue(self.path)
self.assertEqual(100, q.qsize())
for i in range(100):
self.assertEqual('var%d' % i, q.get())
q.task_done()
with self.assertRaises(Empty):
q.get_nowait()
def test_GarbageOnHead(self):
"""Adds garbage to the queue head and let the internal integrity
checks fix it"""
q = Queue(self.path)
q.put('var1')
del q
with open(os.path.join(self.path, 'q00001'), 'a') as fd:
fd.write('garbage')
q = Queue(self.path)
q.put('var2')
self.assertEqual(2, q.qsize())
self.assertEqual('var1', q.get())
q.task_done()
