Fix bad typo in cloudpipe.py

Looks like a refactoring problem. we should be raising
exc.HTTPBadRequest where exc is in webob.

Change-Id: Id6d4e1d43f1d49c05d9da1234e40a603022d35c2

nova/api/openstack/compute/contrib/cloudpipe.py

@@ -15,6 +15,7 @@
 """Connect your vlan to the world."""
 
 from oslo.config import cfg
+from webob import exc
 
 from nova.api.openstack import extensions
 from nova.api.openstack import wsgi
@@ -148,7 +149,7 @@ class CloudpipeController(object):
             except exception.NoMoreNetworks:
                 msg = _("Unable to claim IP for VPN instances, ensure it "
                         "isn't running, and try again in a few minutes")
-                raise exception.HTTPBadRequest(explanation=msg)
+                raise exc.HTTPBadRequest(explanation=msg)
         return {'instance_id': instance['uuid']}
 
     @wsgi.serializers(xml=CloudpipesTemplate)

nova/tests/api/openstack/compute/contrib/test_cloudpipe.py

@@ -15,10 +15,12 @@
 
 from lxml import etree
 from oslo.config import cfg
+from webob import exc
 
 from nova.api.openstack.compute.contrib import cloudpipe
 from nova.api.openstack import wsgi
 from nova.compute import utils as compute_utils
+from nova import exception
 from nova.openstack.common import timeutils
 from nova import test
 from nova.tests.api.openstack import fakes
@@ -115,6 +117,17 @@ class CloudpipeTest(test.NoDBTestCase):
         response = {'instance_id': 7777}
         self.assertEqual(res_dict, response)
 
+    def test_cloudpipe_create_no_networks(self):
+        def launch_vpn_instance(context):
+            raise exception.NoMoreNetworks
+
+        self.stubs.Set(self.controller.cloudpipe, 'launch_vpn_instance',
+                       launch_vpn_instance)
+        body = {'cloudpipe': {'project_id': 1}}
+        req = fakes.HTTPRequest.blank('/v2/fake/os-cloudpipe')
+        self.assertRaises(exc.HTTPBadRequest,
+                          self.controller.create, req, body)
+
     def test_cloudpipe_create_already_running(self):
         def launch_vpn_instance(*args, **kwargs):
             self.fail("Method should not have been called")