Files
sqlalchemy/test/profiling/pool.py
T
Jason Kirtland 17d3c8764e - testbase is gone, replaced by testenv
- Importing testenv has no side effects- explicit functions provide similar behavior to the old immediate behavior of testbase
- testing.db has the configured db
- Fixed up the perf/* scripts
2008-01-12 22:03:42 +00:00

43 lines
1.5 KiB
Python

import testenv; testenv.configure_for_tests()
from sqlalchemy import *
from testlib import *
from sqlalchemy.pool import QueuePool
from sqlalchemy.databases import sqlite
class QueuePoolTest(AssertMixin):
def setUp(self):
global pool
pool = QueuePool(creator = lambda: sqlite.SQLiteDialect.dbapi().connect(':memory:'), pool_size = 3, max_overflow = -1, use_threadlocal = True)
# the WeakValueDictionary used for the pool's "threadlocal" idea adds 1-6
# method calls to each of these. however its just a lot easier stability
# wise than dealing with a strongly referencing dict of weakrefs.
# [ticket:754] immediately got opened when we tried a dict of weakrefs,
# and though the solution there is simple, it still doesn't solve the
# issue of "dead" weakrefs sitting in the dict taking up space
@profiling.profiled('pooltest_connect', call_range=(40, 50), always=True)
def test_first_connect(self):
conn = pool.connect()
def test_second_connect(self):
conn = pool.connect()
conn.close()
@profiling.profiled('pooltest_second_connect', call_range=(24, 24), always=True)
def go():
conn2 = pool.connect()
return conn2
c2 = go()
def test_second_samethread_connect(self):
conn = pool.connect()
@profiling.profiled('pooltest_samethread_connect', call_range=(4, 4), always=True)
def go():
return pool.connect()
c2 = go()
if __name__ == '__main__':
testenv.main()