[vpnaas] Unit test failure: cannot import name dvr_router

[Elena Ezhova]

2015-06-22 10:14:26.271 | Traceback (most recent call last):
2015-06-22 10:14:26.272 | File "/home/jenkins/workspace/gate-neutron-vpnaas-python27/.tox/py27/local/lib/python2.7/site-packages/unittest2/loader.py", line 445, in _find_test_path
2015-06-22 10:14:26.272 | module = self._get_module_from_name(name)
2015-06-22 10:14:26.272 | File "/home/jenkins/workspace/gate-neutron-vpnaas-python27/.tox/py27/local/lib/python2.7/site-packages/unittest2/loader.py", line 384, in _get_module_from_name
2015-06-22 10:14:26.272 | __import__(name)
2015-06-22 10:14:26.272 | File "neutron_vpnaas/tests/unit/services/vpn/device_drivers/test_ipsec.py", line 19, in <module>
2015-06-22 10:14:26.272 | from neutron.agent.l3 import dvr_router
2015-06-22 10:14:26.272 | ImportError: cannot import name dvr_router

[Paul Michali (pcm)]

Looks like Neutron change for commit https://review.openstack.org/#q,I581a097b9e7c49f20d0eb0e4ca66a25e90d9511b,n,z has broken the VPNaaS UTs. DvrRouter renamed to DvrLocalRouter, and no longer has create_snat_namespace() method.

[Paul Michali (pcm)]

Actually, I'm not sure if it was renamed to DvrLocalRouter or DvrEdgeRouter. Need to understand which one represents the router that is used for SNAT and VPN in an DVR situation. Need to make sure that the get_namespace() command in VPN driver is correct.