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test_driver.py
179 lines (115 loc) · 4.47 KB
/
test_driver.py
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import pickle
from unittest import TestCase
from nose.tools import istest, raises
import redis
from pycket.driver import DriverFactory, MemcachedDriver, RedisDriver
class RedisTestCase(TestCase):
client = None
def setUp(self):
if self.client is None:
self.client = redis.Redis(db=0)
self.client.flushall()
class RedisDriverTest(RedisTestCase):
@istest
def inserts_pickable_object_into_session(self):
driver = RedisDriver(dict(db=0))
foo = dict(foo='bar')
driver.set('session-id', foo)
result = self.client.get('session-id')
self.assertEqual(pickle.loads(result), foo)
@istest
def retrieves_a_pickled_object_from_session(self):
driver = RedisDriver(dict(db=0))
foo = dict(foo='bar')
self.client.set('session-id', pickle.dumps(foo))
result = driver.get('session-id')
self.assertEqual(result, foo)
@istest
def makes_session_expire_in_one_day_in_the_client(self):
driver = RedisDriver(dict(db=0))
foo = dict(foo='bar')
test_case = self
class StubClient(object):
def set(self, session_id, pickled_session):
pass
def expire(self, session_id, expiration):
test_case.assertEqual(expiration, RedisDriver.EXPIRE_SECONDS)
driver.client = StubClient()
driver.set('session-id', foo)
@istest
def starts_with_1_day_to_expire_in_database(self):
driver = RedisDriver(dict(db=0))
one_day = 24 * 60 * 60
self.assertEqual(driver.EXPIRE_SECONDS, one_day)
class MemcachedTestCase(TestCase):
client = None
def setUp(self):
if self.client is None:
import memcache
self.client = memcache.Client(servers=('localhost:11211',))
self.client.flush_all()
class MemcachedDriverTest(MemcachedTestCase):
@istest
def inserts_pickable_object_into_session(self):
driver = MemcachedDriver({
'servers': ('localhost:11211',)
})
foo = dict(foo='bar')
driver.set('session-id', foo)
result = self.client.get('session-id')
self.assertEqual(pickle.loads(result), foo)
@istest
def retrieves_a_pickled_object_from_session(self):
driver = MemcachedDriver({
'servers': ('localhost:11211',)
})
foo = dict(foo='bar')
self.client.set('session-id', pickle.dumps(foo))
result = driver.get('session-id')
self.assertEqual(result, foo)
@istest
def makes_session_expire_in_one_day_in_the_client(self):
driver = MemcachedDriver({
'servers': ('localhost:11211',)
})
foo = dict(foo='bar')
test_case = self
class StubClient(object):
def set(self, session_id, pickled_session, expiration):
test_case.assertEqual(expiration, MemcachedDriver.EXPIRE_SECONDS)
driver.client = StubClient()
driver.set('session-id', foo)
@istest
@raises(OverflowError)
def fails_to_load_if_storage_settings_contain_wrong_host(self):
driver = MemcachedDriver({
'servers': ('255.255.255.255:99999',)
})
driver.set('session-id', 'foo')
@istest
def starts_with_1_day_to_expire_in_database(self):
driver = MemcachedDriver({
'servers': ('localhost:11211',)
})
one_day = 24 * 60 * 60
self.assertEqual(driver.EXPIRE_SECONDS, one_day)
class DriverFactoryTest(TestCase):
@istest
def creates_instance_for_redis_session(self):
factory = DriverFactory()
instance = factory.create('redis', storage_settings={}, storage_category='db_sessions')
self.assertIsInstance(instance, RedisDriver)
instance.get('client-is-lazy-loaded')
self.assertEqual(instance.client.connection_pool._available_connections[0].db, 0)
@istest
def creates_instance_for_memcached_session(self):
factory = DriverFactory()
instance = factory.create('memcached', storage_settings={}, storage_category='db_sessions')
self.assertIsInstance(instance, MemcachedDriver)
instance.get('client-is-lazy-loaded')
self.assertIsNotNone(instance.client.get_stats())
@istest
@raises(ValueError)
def cannot_create_a_driver_for_not_supported_engine(self):
factory = DriverFactory()
instance = factory.create('cassete-tape', storage_settings={}, storage_category='db_sessions')