Files
sqlalchemy/test/aaa_profiling/test_pool.py
T
Mike Bayer 386012597b Limit non-backend critical profiling tests to SQLite
issues with backend-specific profiling should be limited
to tests that are explcitly against resultset, compiler, etc.

MySQL in particular has an often varying callcount that isn't
worth running these tests against nor is it worth profiling
them for other backends like Oracle and SQL Server.

Also add the REQUIRE_SQLALCHEMY_CEXT flag to
the regen_callcounts.tox.ini script, which is part of some review
somewhere but is needed here to generate callcounts correctly.

Add a "warmup" phase for some of the ORM tests for join conditions
that have varying profile counts based on whether mappings have been
used already or not; profiling should always be against the
"warmed up" version of a function.

Change-Id: If483820235fa4cc4360cbd067a9b68d83512d587
2020-02-17 14:41:21 -05:00

45 lines
1.1 KiB
Python

from sqlalchemy.pool import QueuePool
from sqlalchemy.testing import AssertsExecutionResults
from sqlalchemy.testing import fixtures
from sqlalchemy.testing import profiling
pool = None
class QueuePoolTest(fixtures.TestBase, AssertsExecutionResults):
__requires__ = ("cpython", "python_profiling_backend")
class Connection(object):
def rollback(self):
pass
def close(self):
pass
def setup(self):
# create a throwaway pool which
# has the effect of initializing
# class-level event listeners on Pool,
# if not present already.
p1 = QueuePool(creator=self.Connection, pool_size=3, max_overflow=-1)
p1.connect()
global pool
pool = QueuePool(creator=self.Connection, pool_size=3, max_overflow=-1)
@profiling.function_call_count()
def test_first_connect(self):
pool.connect()
def test_second_connect(self):
conn = pool.connect()
conn.close()
@profiling.function_call_count()
def go():
conn2 = pool.connect()
return conn2
go()