x/vmware-nsx
Code Issues Proposed changes

Delete DB records instead of tables to speedup UT

Browse Source 
Now that the schema is fixed for all of the plugins,
there isn't a need to delete and recreate the entire
schema for every unit test.

This patch clears the tables at the end of each test
instead of deleting them. This eliminated overhead seems
to save 10%+ execution time of the entire set of unit
tests.

Example of performance gain from tox -epy27 tests.unit.ml2:
Before: Ran 2495 tests in 284.186s
After: Ran 2495 tests in 223.299s

Change-Id: Ic5bcbb0cf941e0745890abc776d719e58bb42e35
This commit is contained in:
Kevin Benton 2014-09-16 17:29:51 -07:00
parent 48ec1fbfc3
commit 34cf04a0ea
1 changed files with 12 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
neutron/tests/unit/testlib_api.py
View File

@ -55,17 +55,24 @@ def create_request(path, body, content_type, method='GET',
class SqlTestCase(base.BaseTestCase):
# flag to indicate that the models have been loaded
_TABLES_ESTABLISHED = False
def setUp(self):
super(SqlTestCase, self).setUp()
# Register all data models
engine = db_api.get_engine()
model_base.BASEV2.metadata.create_all(engine)
if not SqlTestCase._TABLES_ESTABLISHED:
model_base.BASEV2.metadata.create_all(engine)
SqlTestCase._TABLES_ESTABLISHED = True
def unregister_models():
"""Unregister all data models."""
model_base.BASEV2.metadata.drop_all(engine)
def clear_tables():
with engine.begin() as conn:
for table in reversed(
model_base.BASEV2.metadata.sorted_tables):
conn.execute(table.delete())
self.addCleanup(unregister_models)
self.addCleanup(clear_tables)
class WebTestCase(SqlTestCase):