various cleanup to get most tests passing (yay!)

jupyterhub/tests/test_spawner.py

@@ -17,6 +17,7 @@ import requests
 from tornado import gen
 
 from ..user import User
+from ..objects import Hub
 from .. import spawner as spawnermod
 from ..spawner import LocalProcessSpawner
 from .. import orm
@@ -43,8 +44,8 @@ def setup():
 
 def new_spawner(db, **kwargs):
     kwargs.setdefault('cmd', [sys.executable, '-c', _echo_sleep])
+    kwargs.setdefault('hub', Hub())
     kwargs.setdefault('user', User(db.query(orm.User).first(), {}))
-    kwargs.setdefault('hub', db.query(orm.Hub).first())
     kwargs.setdefault('notebook_dir', os.getcwd())
     kwargs.setdefault('default_url', '/user/{username}/lab')
     kwargs.setdefault('INTERRUPT_TIMEOUT', 1)