43 lines
1.5 KiB
Python
43 lines
1.5 KiB
Python
import random
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import time
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import threading
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from tests import unittest
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from botocore.retries import quota
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class TestRetryQuota(unittest.TestCase):
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def setUp(self):
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self.max_capacity = 50
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self.retry_quota = quota.RetryQuota(self.max_capacity)
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self.shutdown_threads = False
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self.seen_capacities = []
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def run_in_thread(self):
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while not self.shutdown_threads:
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capacity = random.randint(1, self.max_capacity)
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self.retry_quota.acquire(capacity)
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self.seen_capacities.append(self.retry_quota.available_capacity)
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self.retry_quota.release(capacity)
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self.seen_capacities.append(self.retry_quota.available_capacity)
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def test_capacity_stays_within_range(self):
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# The main thing we're after is that the available_capacity
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# should always be 0 <= capacity <= max_capacity.
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# So what we do is spawn a number of threads and them acquire
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# random capacity. They'll check that they never see an invalid
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# capacity.
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threads = []
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for i in range(10):
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threads.append(threading.Thread(target=self.run_in_thread))
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for thread in threads:
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thread.start()
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# We'll let things run for a second.
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time.sleep(1)
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self.shutdown_threads = True
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for thread in threads:
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thread.join()
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for seen_capacity in self.seen_capacities:
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self.assertGreaterEqual(seen_capacity, 0)
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self.assertLessEqual(seen_capacity, self.max_capacity)
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