def testPutDoesntCopyByDefault(self):
cache = MaybeCacher()
cache.make_cache("cache1", 5, 5)
obj = [1, 2, 3]
# We put this into the cache manually to avoid a false pass from something .get does
cache.put("cache1", "foo", obj)
cached_obj = cache.caches["cache1"].data["foo"][1]
self.assertEqual(id(obj), id(cached_obj))
def testNoCaching(self):
with mock.patch("auslib.util.cache.ExpiringLRUCache") as lru:
cache = MaybeCacher(maxsize=0, timeout=0)
cache.put("cache1", "foo", "bar")
# Nothing should be in the cache, because there _isn't_ one.
self.assertEquals(cache.get("cache1", "foo"), None)
# And the underlying cache object should not have been touched.
self.assertFalse(lru.put.called)
self.assertFalse(lru.get.called)
def testNoCaching(self):
with mock.patch("auslib.util.cache.ExpiringLRUCache") as lru:
cache = MaybeCacher(maxsize=0, timeout=0)
cache.put("cache1", "foo", "bar")
# Nothing should be in the cache, because there _isn't_ one.
self.assertEquals(cache.get("cache1", "foo"), None)
# And the underlying cache object should not have been touched.
self.assertFalse(lru.put.called)
self.assertFalse(lru.get.called)
def testCopyOnGet(self):
cache = MaybeCacher()
cache.make_cache("cache1", 5, 5)
cache.make_copies = True
obj = [1, 2, 3]
# We put this into the cache manually to avoid a false pass from something .put does
cache.caches["cache1"].data["foo"] = obj
cached_obj = cache.get("cache1", "foo")
self.assertNotEqual(id(obj), id(cached_obj))
def testGetDoesntCopyByDefault(self):
cache = MaybeCacher()
cache.make_cache("cache1", 5, 5)
obj = [1, 2, 3]
# We put this into the cache manually to avoid a false pass from something .put does
# cache entry format is (pos, value, expiration)
cache.caches["cache1"].data["foo"] = (0, obj, 9999999999999999)
cached_obj = cache.get("cache1", "foo")
self.assertEqual(id(obj), id(cached_obj))
def testGetDoesntCopyByDefault(self):
cache = MaybeCacher()
cache.make_cache("cache1", 5, 5)
obj = [1, 2, 3]
# We put this into the cache manually to avoid a false pass from something .put does
# cache entry format is (pos, value, expiration)
cache.caches["cache1"].data["foo"] = (0, obj, 9999999999999999)
cached_obj = cache.get("cache1", "foo")
self.assertEqual(id(obj), id(cached_obj))
def testCacheExpired(self):
cache = MaybeCacher(maxsize=5, timeout=5)
# In order to avoid tests failing due to clock skew or other
# issues with system clocks we can mock time.time() and make sure
# it always returns a difference large enough to force a cache expiry
with mock.patch("time.time") as t:
t.return_value = 100
cache.put("cache1", "foo", "bar")
t.return_value = 200
self.assertEquals(cache.get("cache1", "foo"), None)
def testCacheExpired(self):
cache = MaybeCacher(maxsize=5, timeout=5)
# In order to avoid tests failing due to clock skew or other
# issues with system clocks we can mock time.time() and make sure
# it always returns a difference large enough to force a cache expiry
with mock.patch("time.time") as t:
t.return_value = 100
cache.put("cache1", "foo", "bar")
t.return_value = 200
self.assertEquals(cache.get("cache1", "foo"), None)
def testCopyOnPut(self):
cache = MaybeCacher()
cache.make_cache("cache1", 5, 5)
cache.make_copies = True
obj = [1, 2, 3]
# We put this into the cache manually to avoid a false pass from something .get does
cache.put("cache1", "foo", obj)
cached_obj = cache.caches["cache1"].data["foo"]
self.assertNotEquals(id(obj), id(cached_obj))
def testPutDoesntCopyByDefault(self):
cache = MaybeCacher()
cache.make_cache("cache1", 5, 5)
obj = [1, 2, 3]
# We put this into the cache manually to avoid a false pass from something .get does
cache.put("cache1", "foo", obj)
cached_obj = cache.caches["cache1"].data["foo"][1]
self.assertEquals(id(obj), id(cached_obj))
def testSimpleCache(self):
cache = MaybeCacher(maxsize=5, timeout=5)
cache.put("cache1", "foo", "bar")
self.assertEquals(cache.get("cache1", "foo"), "bar")
def testSimpleCache(self):
cache = MaybeCacher()
cache.make_cache("cache1", 5, 5)
cache.put("cache1", "foo", "bar")
self.assertEquals(cache.get("cache1", "foo"), "bar")
# convenient to have the database object accessible in single place for both
# apps, which is why the "dbo" variable below exists. This DbWrapper class
# exists solely to defer the AUSDatabase object import to work around circular
# dependency issues that would occur if it were imported at parse time instead
# of runtime.
class DbWrapper(object):
def __init__(self):
self.db = None
def setDb(self, dburi):
from auslib.db import AUSDatabase
self.db = AUSDatabase(dburi)
def __getattr__(self, name):
if not self.db:
raise RuntimeError("No database configured")
return getattr(self.db, name)
dbo = DbWrapper()
# Similar to the above, we have a complication around having two separate
# applications existing in the same library. This cache class is a simple
# wrapper that does nothing if caching is disabled, and uses a 3rd party
# caching library if it is enabled.
from auslib.util.cache import MaybeCacher
cache = MaybeCacher()
def testSimpleCache(self):
cache = MaybeCacher(maxsize=5, timeout=5)
cache.put("cache1", "foo", "bar")
self.assertEquals(cache.get("cache1", "foo"), "bar")
def testSimpleCache(self):
cache = MaybeCacher()
cache.make_cache("cache1", 5, 5)
cache.put("cache1", "foo", "bar")
self.assertEqual(cache.get("cache1", "foo"), "bar")
