How to use the queuelib.tests.test_queue.LifoDiskQueueTest function in queuelib

chunksize = 1


class ChunkSize2PickleFifoDiskQueueTest(PickleFifoDiskQueueTest):
    chunksize = 2


class ChunkSize3PickleFifoDiskQueueTest(PickleFifoDiskQueueTest):
    chunksize = 3


class ChunkSize4PickleFifoDiskQueueTest(PickleFifoDiskQueueTest):
    chunksize = 4


class MarshalLifoDiskQueueTest(t.LifoDiskQueueTest):

    def queue(self):
        return MarshalLifoDiskQueue(self.qpath)

    def test_serialize(self):
        q = self.queue()
        q.push('a')
        q.push(123)
        q.push({'a': 'dict'})
        self.assertEqual(q.pop(), {'a': 'dict'})
        self.assertEqual(q.pop(), 123)
        self.assertEqual(q.pop(), 'a')

    test_nonserializable_object = nonserializable_object_test

assert r2.meta['request'] is r2

class ChunkSize1PickleFifoDiskQueueTest(PickleFifoDiskQueueTest):
    chunksize = 1

class ChunkSize2PickleFifoDiskQueueTest(PickleFifoDiskQueueTest):
    chunksize = 2

class ChunkSize3PickleFifoDiskQueueTest(PickleFifoDiskQueueTest):
    chunksize = 3

class ChunkSize4PickleFifoDiskQueueTest(PickleFifoDiskQueueTest):
    chunksize = 4


class MarshalLifoDiskQueueTest(t.LifoDiskQueueTest):

    def queue(self):
        return MarshalLifoDiskQueue(self.qpath)

    def test_serialize(self):
        q = self.queue()
        q.push('a')
        q.push(123)
        q.push({'a': 'dict'})
        self.assertEqual(q.pop(), {'a': 'dict'})
        self.assertEqual(q.pop(), 123)
        self.assertEqual(q.pop(), 'a')

    def test_nonserializable_object(self):
        # Trigger Twisted bug #7989
        import twisted.persisted.styles  # NOQA