def test_kvs_locking_context_handler_locking_disabled(self):
# Make sure no creation of key/value pairs for the backend
# distributed locking mutex occurs if locking is disabled.
self.config_fixture.config(group='kvs', enable_key_mangler=False)
kvs = self._get_kvs_region()
kvs.configure('openstack.kvs.KVSBackendFixture', locking=False)
lock_key = '_lock' + self.key_foo
self.assertNotIn(lock_key, kvs._region.backend._db)
with core.KeyValueStoreLock(kvs._mutex(self.key_foo), self.key_foo,
False):
self.assertNotIn(lock_key, kvs._region.backend._db)
self.assertNotIn(lock_key, kvs._region.backend._db)
def test_kvs_locking_context_handler(self):
# Make sure we're creating the correct key/value pairs for the backend
# distributed locking mutex.
self.config_fixture.config(group='kvs', enable_key_mangler=False)
kvs = self._get_kvs_region()
kvs.configure('openstack.kvs.KVSBackendFixture')
lock_key = '_lock' + self.key_foo
self.assertNotIn(lock_key, kvs._region.backend._db)
with core.KeyValueStoreLock(kvs._mutex(self.key_foo), self.key_foo):
self.assertIn(lock_key, kvs._region.backend._db)
self.assertIs(kvs._region.backend._db[lock_key], 1)
self.assertNotIn(lock_key, kvs._region.backend._db)