Argument store added to updateEntityProperties.
This argument determines if an entity should be stored in the data model after its properties are updated.
It may be useful, for example, along with tasks (Task Queue API). One may want to make some modifications to an entity during execution of a task, but the developer is sure that at least one new task, which also wants to modify the entity, will be queued, so he or she can just update the entity without saving the changes to the data model, set the entity in memcache and the following task (which is to be executed very shortly) is to retrive the current entity from the memcache (without any expensive calls to the actual data model).
# Unit tests for cache framework
# Uses whatever cache backend is set in the test settings file.
from django.core.cache import cache
import time, unittest
# functions/classes for complex data type tests
def f():
return 42
class C:
def m(n):
return 24
class Cache(unittest.TestCase):
def test_simple(self):
# simple set/get
cache.set("key", "value")
self.assertEqual(cache.get("key"), "value")
def test_non_existent(self):
# get with non-existent keys
self.assertEqual(cache.get("does not exist"), None)
self.assertEqual(cache.get("does not exist", "bang!"), "bang!")
def test_get_many(self):
# get_many
cache.set('a', 'a')
cache.set('b', 'b')
cache.set('c', 'c')
cache.set('d', 'd')
self.assertEqual(cache.get_many(['a', 'c', 'd']), {'a' : 'a', 'c' : 'c', 'd' : 'd'})
self.assertEqual(cache.get_many(['a', 'b', 'e']), {'a' : 'a', 'b' : 'b'})
def test_delete(self):
# delete
cache.set("key1", "spam")
cache.set("key2", "eggs")
self.assertEqual(cache.get("key1"), "spam")
cache.delete("key1")
self.assertEqual(cache.get("key1"), None)
self.assertEqual(cache.get("key2"), "eggs")
def test_has_key(self):
# has_key
cache.set("hello", "goodbye")
self.assertEqual(cache.has_key("hello"), True)
self.assertEqual(cache.has_key("goodbye"), False)
def test_data_types(self):
# test data types
stuff = {
'string' : 'this is a string',
'int' : 42,
'list' : [1, 2, 3, 4],
'tuple' : (1, 2, 3, 4),
'dict' : {'A': 1, 'B' : 2},
'function' : f,
'class' : C,
}
for (key, value) in stuff.items():
cache.set(key, value)
self.assertEqual(cache.get(key), value)
def test_expiration(self):
# expiration
cache.set('expire', 'very quickly', 1)
time.sleep(2)
self.assertEqual(cache.get("expire"), None)
if __name__ == '__main__':
unittest.main()