78 lines
1.9 KiB
Python
78 lines
1.9 KiB
Python
import unittest
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import json
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import time
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from functools import wraps
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from threading import Thread, Lock
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from app import app
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from data.queue import WorkQueue
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from initdb import wipe_database, initialize_database, populate_database
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QUEUE_NAME = 'testqueuename'
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class AutoUpdatingQueue(object):
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def __init__(self, queue_to_wrap):
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self._queue = queue_to_wrap
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def _wrapper(self, func):
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@wraps(func)
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def wrapper(*args, **kwargs):
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to_return = func(*args, **kwargs)
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self._queue.update_metrics()
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return to_return
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return wrapper
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def __getattr__(self, attr_name):
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method_or_attr = getattr(self._queue, attr_name)
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if callable(method_or_attr):
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return self._wrapper(method_or_attr)
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else:
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return method_or_attr
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class QueueTestCase(unittest.TestCase):
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TEST_MESSAGE_1 = json.dumps({'data': 1})
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def setUp(self):
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self.transaction_factory = app.config['DB_TRANSACTION_FACTORY']
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self.queue = AutoUpdatingQueue(WorkQueue(QUEUE_NAME, self.transaction_factory))
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wipe_database()
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initialize_database()
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populate_database()
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class TestQueueThreads(QueueTestCase):
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def test_queue_threads(self):
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count = [20]
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for i in range(count[0]):
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self.queue.put([str(i)], self.TEST_MESSAGE_1)
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lock = Lock()
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def get(lock, count, queue):
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item = queue.get()
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if item is None:
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return
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self.assertEqual(self.TEST_MESSAGE_1, item.body)
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with lock:
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count[0] -= 1
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threads = []
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# The thread count needs to be a few times higher than the queue size
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# count because some threads will get a None and thus won't decrement
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# the counter.
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for i in range(100):
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t = Thread(target=get, args=(lock, count, self.queue))
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threads.append(t)
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for t in threads:
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t.start()
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for t in threads:
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t.join()
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self.assertEqual(count[0], 0)
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if __name__ == '__main__':
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unittest.main()
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