Disable pool recycle in tests

The default for connection_recycle_time is
one hour. If any test using StaticSqlFixture
runs after 1 hour it fails as connection get's
recycled.

With sqlite memory db if there is a connection
disconnect or reconnect db get's wiped off.
This patch disables the pool recycle so tests
can run fine even in slow environments.

Closes-Bug: #2024674
Change-Id: I04f120d3ccd11b18ae08cb10b19a7cb5a0e8983d
(cherry picked from commit 576c468)

Author: karelyatin

neutron/tests/base.py

@@ -253,6 +253,10 @@ def setUp(self):
         # for more info.
         db_options.set_defaults(cfg.CONF, connection='sqlite://')
 
+        # NOTE(ykarel): Disable pool recycle as tables are dropped with sqlite
+        # memory db with connection close or reconnect
+        cfg.CONF.set_override('connection_recycle_time', -1, group='database')
+
         # Configure this first to ensure pm debugging support for setUp()
         debugger = os.environ.get('OS_POST_MORTEM_DEBUGGER')
         if debugger: