Make test_floating_ip* pass with CONF.use_neutron=True by default

Some pretty simple changes:

- test_floating_ip_dns can only be tested with nova-network as the
  API isn't implemented for Neutron.
- test_floating_ip_pools just needed some more generic mocking.
- test_floating_ips just needed more generic mocking and to make
  the non-Neutron-specific test force use_neutron=False.

Part of blueprint use-neutron-by-default

Change-Id: If8b8a6662ae01f23bde09fd5804fe635b6340eb4

nova/tests/unit/api/openstack/compute/test_floating_ip_dns.py

@@ -117,6 +117,8 @@ class FloatingIpDNSTestV21(test.TestCase):
 
     def setUp(self):
         super(FloatingIpDNSTestV21, self).setUp()
+        # None of these APIs are implemented for Neutron.
+        self.flags(use_neutron=False)
         self.stubs.Set(network.api.API, "get_dns_domains",
                        network_get_dns_domains)
         self.stubs.Set(network.api.API, "get_dns_entries_by_address",

nova/tests/unit/api/openstack/compute/test_floating_ip_pools.py

@@ -13,16 +13,17 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import mock
+
 from nova.api.openstack.compute import floating_ip_pools \
         as fipp_v21
 from nova import context
 from nova import exception
-from nova import network
 from nova import test
 from nova.tests.unit.api.openstack import fakes
 
 
-def fake_get_floating_ip_pools(self, context):
+def fake_get_floating_ip_pools(*args, **kwargs):
     return ['nova', 'other']
 
 
@@ -31,8 +32,6 @@ class FloatingIpPoolTestV21(test.NoDBTestCase):
 
     def setUp(self):
         super(FloatingIpPoolTestV21, self).setUp()
-        self.stubs.Set(network.api.API, "get_floating_ip_pools",
-                       fake_get_floating_ip_pools)
 
         self.context = context.RequestContext('fake', 'fake')
         self.controller = self.floating_ip_pools.FloatingIPPoolsController()
@@ -48,7 +47,10 @@ class FloatingIpPoolTestV21(test.NoDBTestCase):
                          pools[1])
 
     def test_floating_ips_pools_list(self):
-        res_dict = self.controller.index(self.req)
+        with mock.patch.object(self.controller.network_api,
+                               'get_floating_ip_pools',
+                               fake_get_floating_ip_pools):
+            res_dict = self.controller.index(self.req)
 
         pools = fake_get_floating_ip_pools(None, self.context)
         response = {'floating_ip_pools': [{'name': name} for name in pools]}

nova/tests/unit/api/openstack/compute/test_floating_ips.py

@@ -183,6 +183,7 @@ class FloatingIpTestV21(test.TestCase):
 
     def setUp(self):
         super(FloatingIpTestV21, self).setUp()
+        self.flags(use_neutron=False)
         self.stubs.Set(compute.api.API, "get",
                        compute_api_get)
         self.stubs.Set(network.api.API, "get_floating_ip",
@@ -884,13 +885,14 @@ class ExtendedFloatingIpTestV21(test.TestCase):
         def fake_associate_floating_ip(*args, **kwargs):
             self.assertEqual(fixed_address, kwargs['fixed_address'])
 
-        self.stubs.Set(network.api.API, "associate_floating_ip",
-                       fake_associate_floating_ip)
         body = dict(addFloatingIp=dict(address=self.floating_ip,
                                        fixed_address=fixed_address))
 
-        rsp = self.manager._add_floating_ip(self.fake_req, TEST_INST,
-                                            body=body)
+        with mock.patch.object(self.manager.network_api,
+                               'associate_floating_ip',
+                               fake_associate_floating_ip):
+            rsp = self.manager._add_floating_ip(self.fake_req, TEST_INST,
+                                                body=body)
         self.assertEqual(202, rsp.status_int)
 
     def test_extended_floating_ip_associate_fixed_not_allocated(self):