Fix TestDatabase flakes by giving it suite granularity
I've been getting flakes with TestDatabase because some of the tests
create/delete the same databases. Give it suite granularity to avoid
this.
@@ -25,6 +25,7 @@ from edb.testbase import server as tb
class TestDatabase(tb.ConnectedTestCase):
TRANSACTION_ISOLATION = False
+ PARALLELISM_GRANULARITY = 'suite'
async def test_database_create_01(self):
if not self.has_create_database:
