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import unittest
import operator
from cachetools import LRUCache, cachedmethod
class Cached(object):
cache = LRUCache(maxsize=2)
count = 0
@cachedmethod(operator.attrgetter('cache'))
def get(self, value):
count = self.count
self.count += 1
return count
@cachedmethod(operator.attrgetter('cache'), typed=True)
def get_typed(self, value):
count = self.count
self.count += 1
return count
class MethodTest(unittest.TestCase):
def test_decorator(self):
cached = Cached()
self.assertEqual(cached.get(0), 0)
self.assertEqual(cached.get(1), 1)
self.assertEqual(cached.get(1), 1)
self.assertEqual(cached.get(1.0), 1)
self.assertEqual(cached.get(1.0), 1)
cached.cache.clear()
self.assertEqual(cached.get(1), 2)
def test_typed_decorator(self):
cached = Cached()
self.assertEqual(cached.get_typed(0), 0)
self.assertEqual(cached.get_typed(1), 1)
self.assertEqual(cached.get_typed(1), 1)
self.assertEqual(cached.get_typed(1.0), 2)
self.assertEqual(cached.get_typed(1.0), 2)
self.assertEqual(cached.get_typed(0.0), 3)
self.assertEqual(cached.get_typed(0), 4)
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