def test_logic(self):
cache = py4web.Cache()
cache.get('x', lambda: 'y')
self.assertEqual(cache.head.next.next, cache.tail)
self.assertEqual(cache.head.next, cache.tail.prev)
self.assertEqual(cache.head, cache.tail.prev.prev)
self.assertEqual(cache.head.next.key, 'x')
self.assertEqual(cache.head.next.value, 'y')
def test_different_keys(self):
cache = py4web.Cache()
results = set()
for k in range(100):
results.add(cache.get('a', random.random))
results.add(cache.get('b', random.random))
results.add(cache.get('c', random.random))
self.assertEqual(len(results), 3)
def test_logic(self):
cache = py4web.Cache()
cache.get("x", lambda: "y")
self.assertEqual(cache.head.next.next, cache.tail)
self.assertEqual(cache.head.next, cache.tail.prev)
self.assertEqual(cache.head, cache.tail.prev.prev)
self.assertEqual(cache.head.next.key, "x")
self.assertEqual(cache.head.next.value, "y")
def test_timing(self):
M = N = 100000
cache = py4web.Cache()
for k in range(M):
cache.get(k, random.random)
t0 = time.time()
for k in range(N):
cache.get('new', random.random)
self.assertTrue((time.time() - t0)/N, 1-5)
self.assertTrue(cache.free == 0)
def test_change_detection(self):
cache = py4web.Cache()
results = set()
for k in range(30):
results.add(
cache.get("a", random.random, expiration=0, monitor=lambda: int(k / 10))
)
self.assertEqual(len(results), 3)
time.sleep(0.02)
results.add(cache.get("a", random.random, expiration=0.01, monitor=lambda: 5))
self.assertEqual(len(results), 4)
def test_memoize_and_expiration(self):
memoize = py4web.Cache().memoize(expiration=0.1)
@memoize
def f(x):
return x + random.random()
results = set()
for k in range(10):
results.add(f(1))
results.add(f(2))
time.sleep(0.2)
for k in range(10):
results.add(f(1))
results.add(f(2))
self.assertEqual(len(results), 4)
