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import unittest
from cachetools import RRCache
from . import CacheTestMixin
class RRCacheTest(unittest.TestCase, CacheTestMixin):
Cache = RRCache
def test_rr(self):
cache = RRCache(maxsize=2, choice=min)
self.assertEqual(min, cache.choice)
cache[1] = 1
cache[2] = 2
cache[3] = 3
self.assertEqual(2, len(cache))
self.assertEqual(2, cache[2])
self.assertEqual(3, cache[3])
self.assertNotIn(1, cache)
cache[0] = 0
self.assertEqual(2, len(cache))
self.assertEqual(0, cache[0])
self.assertEqual(3, cache[3])
self.assertNotIn(2, cache)
cache[4] = 4
self.assertEqual(2, len(cache))
self.assertEqual(3, cache[3])
self.assertEqual(4, cache[4])
self.assertNotIn(0, cache)
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