/usr/lib/python3/dist-packages/queuelib/tests/test_queue.py is in python3-queuelib 1.1.1-1.
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from queuelib.queue import FifoMemoryQueue, LifoMemoryQueue, FifoDiskQueue, LifoDiskQueue
from queuelib.tests import QueuelibTestCase
class FifoMemoryQueueTest(QueuelibTestCase):
def queue(self):
return FifoMemoryQueue()
def test_empty(self):
"""Empty queue test"""
q = self.queue()
assert q.pop() is None
def test_push_pop1(self):
"""Basic push/pop test"""
q = self.queue()
q.push(b'a')
q.push(b'b')
q.push(b'c')
self.assertEqual(q.pop(), b'a')
self.assertEqual(q.pop(), b'b')
self.assertEqual(q.pop(), b'c')
self.assertEqual(q.pop(), None)
def test_push_pop2(self):
"""Test interleaved push and pops"""
q = self.queue()
q.push(b'a')
q.push(b'b')
q.push(b'c')
q.push(b'd')
self.assertEqual(q.pop(), b'a')
self.assertEqual(q.pop(), b'b')
q.push(b'e')
self.assertEqual(q.pop(), b'c')
self.assertEqual(q.pop(), b'd')
self.assertEqual(q.pop(), b'e')
def test_len(self):
q = self.queue()
self.assertEqual(len(q), 0)
q.push(b'a')
self.assertEqual(len(q), 1)
q.push(b'b')
q.push(b'c')
self.assertEqual(len(q), 3)
q.pop()
q.pop()
q.pop()
self.assertEqual(len(q), 0)
class LifoMemoryQueueTest(QueuelibTestCase):
def queue(self):
return LifoMemoryQueue()
def test_empty(self):
"""Empty queue test"""
q = self.queue()
assert q.pop() is None
def test_push_pop1(self):
"""Basic push/pop test"""
q = self.queue()
q.push(b'a')
q.push(b'b')
q.push(b'c')
self.assertEqual(q.pop(), b'c')
self.assertEqual(q.pop(), b'b')
self.assertEqual(q.pop(), b'a')
self.assertEqual(q.pop(), None)
def test_push_pop2(self):
"""Test interleaved push and pops"""
q = self.queue()
q.push(b'a')
q.push(b'b')
q.push(b'c')
q.push(b'd')
self.assertEqual(q.pop(), b'd')
self.assertEqual(q.pop(), b'c')
q.push(b'e')
self.assertEqual(q.pop(), b'e')
self.assertEqual(q.pop(), b'b')
self.assertEqual(q.pop(), b'a')
def test_len(self):
q = self.queue()
self.assertEqual(len(q), 0)
q.push(b'a')
self.assertEqual(len(q), 1)
q.push(b'b')
q.push(b'c')
self.assertEqual(len(q), 3)
q.pop()
q.pop()
q.pop()
self.assertEqual(len(q), 0)
class FifoDiskQueueTest(FifoMemoryQueueTest):
chunksize = 100000
def setUp(self):
FifoMemoryQueueTest.setUp(self)
self.qdir = self.mktemp()
def queue(self):
return FifoDiskQueue(self.qdir, chunksize=self.chunksize)
def test_close_open(self):
"""Test closing and re-opening keeps state"""
q = self.queue()
q.push(b'a')
q.push(b'b')
q.push(b'c')
q.push(b'd')
self.assertEqual(q.pop(), b'a')
self.assertEqual(q.pop(), b'b')
q.close()
del q
q = self.queue()
self.assertEqual(len(q), 2)
q.push(b'e')
self.assertEqual(q.pop(), b'c')
self.assertEqual(q.pop(), b'd')
q.close()
del q
q = self.queue()
self.assertEqual(q.pop(), b'e')
self.assertEqual(len(q), 0)
def test_chunks(self):
"""Test chunks are created and removed"""
values = [b'0', b'1', b'2', b'3', b'4']
q = self.queue()
for x in values:
q.push(x)
chunks = glob.glob(os.path.join(self.qdir, 'q*'))
self.assertEqual(len(chunks), 5 // self.chunksize + 1)
for x in values:
q.pop()
chunks = glob.glob(os.path.join(self.qdir, 'q*'))
self.assertEqual(len(chunks), 1)
def test_cleanup(self):
"""Test queue dir is removed if queue is empty"""
q = self.queue()
values = [b'0', b'1', b'2', b'3', b'4']
assert os.path.exists(self.qdir)
for x in values:
q.push(x)
for x in values:
q.pop()
q.close()
assert not os.path.exists(self.qdir)
class ChunkSize1FifoDiskQueueTest(FifoDiskQueueTest):
chunksize = 1
class ChunkSize2FifoDiskQueueTest(FifoDiskQueueTest):
chunksize = 2
class ChunkSize3FifoDiskQueueTest(FifoDiskQueueTest):
chunksize = 3
class ChunkSize4FifoDiskQueueTest(FifoDiskQueueTest):
chunksize = 4
class LifoDiskQueueTest(LifoMemoryQueueTest):
def setUp(self):
LifoMemoryQueueTest.setUp(self)
self.path = tempfile.mktemp()
def queue(self):
return LifoDiskQueue(self.path)
def test_close_open(self):
"""Test closing and re-opening keeps state"""
q = self.queue()
q.push(b'a')
q.push(b'b')
q.push(b'c')
q.push(b'd')
self.assertEqual(q.pop(), b'd')
self.assertEqual(q.pop(), b'c')
q.close()
del q
q = self.queue()
self.assertEqual(len(q), 2)
q.push(b'e')
self.assertEqual(q.pop(), b'e')
self.assertEqual(q.pop(), b'b')
q.close()
del q
q = self.queue()
self.assertEqual(q.pop(), b'a')
self.assertEqual(len(q), 0)
def test_cleanup(self):
"""Test queue file is removed if queue is empty"""
q = self.queue()
values = [b'0', b'1', b'2', b'3', b'4']
assert os.path.exists(self.path)
for x in values:
q.push(x)
for x in values:
q.pop()
q.close()
assert not os.path.exists(self.path)
def test_file_size_shrinks(self):
"""Test size of queue file shrinks when popping items"""
q = self.queue()
q.push(b'a')
q.push(b'b')
q.close()
size = os.path.getsize(self.path)
q = self.queue()
q.pop()
q.close()
assert os.path.getsize(self.path), size
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