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test_cached.py
import unittest import cachetools import cachetools.keys class CountedLock: def __init__(self): self.count = 0 def __enter__(self): self.count += 1 def __exit__(self, *exc): pass class DecoratorTestMixin: def cache(self, minsize): raise NotImplementedError def func(self, *args, **kwargs): if hasattr(self, "count"): self.count += 1 else: self.count = 0 return self.count def test_decorator(self): cache = self.cache(2) wrapper = cachetools.cached(cache)(self.func) self.assertEqual(len(cache), 0) self.assertEqual(wrapper(0), 0) self.assertEqual(len(cache), 1) self.assertIn(cachetools.keys.hashkey(0), cache) self.assertNotIn(cachetools.keys.hashkey(1), cache) self.assertNotIn(cachetools.keys.hashkey(1.0), cache) self.assertEqual(wrapper(1), 1) self.assertEqual(len(cache), 2) self.assertIn(cachetools.keys.hashkey(0), cache) self.assertIn(cachetools.keys.hashkey(1), cache) self.assertIn(cachetools.keys.hashkey(1.0), cache) self.assertEqual(wrapper(1), 1) self.assertEqual(len(cache), 2) self.assertEqual(wrapper(1.0), 1) self.assertEqual(len(cache), 2) self.assertEqual(wrapper(1.0), 1) self.assertEqual(len(cache), 2) def test_decorator_typed(self): cache = self.cache(3) key = cachetools.keys.typedkey wrapper = cachetools.cached(cache, key=key)(self.func) self.assertEqual(len(cache), 0) self.assertEqual(wrapper(0), 0) self.assertEqual(len(cache), 1) self.assertIn(cachetools.keys.typedkey(0), cache) self.assertNotIn(cachetools.keys.typedkey(1), cache) self.assertNotIn(cachetools.keys.typedkey(1.0), cache) self.assertEqual(wrapper(1), 1) self.assertEqual(len(cache), 2) self.assertIn(cachetools.keys.typedkey(0), cache) self.assertIn(cachetools.keys.typedkey(1), cache) self.assertNotIn(cachetools.keys.typedkey(1.0), cache) self.assertEqual(wrapper(1), 1) self.assertEqual(len(cache), 2) self.assertEqual(wrapper(1.0), 2) self.assertEqual(len(cache), 3) self.assertIn(cachetools.keys.typedkey(0), cache) self.assertIn(cachetools.keys.typedkey(1), cache) self.assertIn(cachetools.keys.typedkey(1.0), cache) self.assertEqual(wrapper(1.0), 2) self.assertEqual(len(cache), 3) def test_decorator_lock(self): cache = self.cache(2) lock = CountedLock() wrapper = cachetools.cached(cache, lock=lock)(self.func) self.assertEqual(len(cache), 0) self.assertEqual(wrapper(0), 0) self.assertEqual(lock.count, 2) self.assertEqual(wrapper(1), 1) self.assertEqual(lock.count, 4) self.assertEqual(wrapper(1), 1) self.assertEqual(lock.count, 5) def test_decorator_wrapped(self): cache = self.cache(2) wrapper = cachetools.cached(cache)(self.func) self.assertEqual(wrapper.__wrapped__, self.func) self.assertEqual(len(cache), 0) self.assertEqual(wrapper.__wrapped__(0), 0) self.assertEqual(len(cache), 0) self.assertEqual(wrapper(0), 1) self.assertEqual(len(cache), 1) self.assertEqual(wrapper(0), 1) self.assertEqual(len(cache), 1) def test_decorator_attributes(self): cache = self.cache(2) wrapper = cachetools.cached(cache)(self.func) self.assertIs(wrapper.cache, cache) self.assertIs(wrapper.cache_key, cachetools.keys.hashkey) self.assertIs(wrapper.cache_lock, None) def test_decorator_attributes_lock(self): cache = self.cache(2) lock = CountedLock() wrapper = cachetools.cached(cache, lock=lock)(self.func) self.assertIs(wrapper.cache, cache) self.assertIs(wrapper.cache_key, cachetools.keys.hashkey) self.assertIs(wrapper.cache_lock, lock) def test_decorator_clear(self): cache = self.cache(2) wrapper = cachetools.cached(cache)(self.func) self.assertEqual(wrapper(0), 0) self.assertEqual(len(cache), 1) wrapper.cache_clear() self.assertEqual(len(cache), 0) def test_decorator_clear_lock(self): cache = self.cache(2) lock = CountedLock() wrapper = cachetools.cached(cache, lock=lock)(self.func) self.assertEqual(wrapper(0), 0) self.assertEqual(len(cache), 1) self.assertEqual(lock.count, 2) wrapper.cache_clear() self.assertEqual(len(cache), 0) self.assertEqual(lock.count, 3) class CacheWrapperTest(unittest.TestCase, DecoratorTestMixin): def cache(self, minsize): return cachetools.Cache(maxsize=minsize) def test_decorator_info(self): cache = self.cache(2) wrapper = cachetools.cached(cache, info=True)(self.func) self.assertEqual(wrapper.cache_info(), (0, 0, 2, 0)) self.assertEqual(wrapper(0), 0) self.assertEqual(wrapper.cache_info(), (0, 1, 2, 1)) self.assertEqual(wrapper(1), 1) self.assertEqual(wrapper.cache_info(), (0, 2, 2, 2)) self.assertEqual(wrapper(0), 0) self.assertEqual(wrapper.cache_info(), (1, 2, 2, 2)) wrapper.cache_clear() self.assertEqual(len(cache), 0) self.assertEqual(wrapper.cache_info(), (0, 0, 2, 0)) def test_zero_size_cache_decorator(self): cache = self.cache(0) wrapper = cachetools.cached(cache)(self.func) self.assertEqual(len(cache), 0) self.assertEqual(wrapper(0), 0) self.assertEqual(len(cache), 0) def test_zero_size_cache_decorator_lock(self): cache = self.cache(0) lock = CountedLock() wrapper = cachetools.cached(cache, lock=lock)(self.func) self.assertEqual(len(cache), 0) self.assertEqual(wrapper(0), 0) self.assertEqual(len(cache), 0) self.assertEqual(lock.count, 2) def test_zero_size_cache_decorator_info(self): cache = self.cache(0) wrapper = cachetools.cached(cache, info=True)(self.func) self.assertEqual(wrapper.cache_info(), (0, 0, 0, 0)) self.assertEqual(wrapper(0), 0) self.assertEqual(wrapper.cache_info(), (0, 1, 0, 0)) class DictWrapperTest(unittest.TestCase, DecoratorTestMixin): def cache(self, minsize): return dict() def test_decorator_info(self): cache = self.cache(2) wrapper = cachetools.cached(cache, info=True)(self.func) self.assertEqual(wrapper.cache_info(), (0, 0, None, 0)) self.assertEqual(wrapper(0), 0) self.assertEqual(wrapper.cache_info(), (0, 1, None, 1)) self.assertEqual(wrapper(1), 1) self.assertEqual(wrapper.cache_info(), (0, 2, None, 2)) self.assertEqual(wrapper(0), 0) self.assertEqual(wrapper.cache_info(), (1, 2, None, 2)) wrapper.cache_clear() self.assertEqual(len(cache), 0) self.assertEqual(wrapper.cache_info(), (0, 0, None, 0)) class NoneWrapperTest(unittest.TestCase): def func(self, *args, **kwargs): return args + tuple(kwargs.items()) def test_decorator(self): wrapper = cachetools.cached(None)(self.func) self.assertEqual(wrapper(0), (0,)) self.assertEqual(wrapper(1), (1,)) self.assertEqual(wrapper(1, foo="bar"), (1, ("foo", "bar"))) def test_decorator_attributes(self): wrapper = cachetools.cached(None)(self.func) self.assertIs(wrapper.cache, None) self.assertIs(wrapper.cache_key, cachetools.keys.hashkey) self.assertIs(wrapper.cache_lock, None) def test_decorator_clear(self): wrapper = cachetools.cached(None)(self.func) wrapper.cache_clear() # no-op def test_decorator_info(self): wrapper = cachetools.cached(None, info=True)(self.func) self.assertEqual(wrapper.cache_info(), (0, 0, 0, 0)) self.assertEqual(wrapper(0), (0,)) self.assertEqual(wrapper.cache_info(), (0, 1, 0, 0)) self.assertEqual(wrapper(1), (1,)) self.assertEqual(wrapper.cache_info(), (0, 2, 0, 0)) wrapper.cache_clear() self.assertEqual(wrapper.cache_info(), (0, 0, 0, 0))
SIMPAN
BATAL