diff --git a/nova/tests/unit/network/test_neutronv2.py b/nova/tests/unit/network/test_neutronv2.py
index fcef15ff2b68..d7cc79aa94c7 100644
--- a/nova/tests/unit/network/test_neutronv2.py
+++ b/nova/tests/unit/network/test_neutronv2.py
@@ -3583,6 +3583,16 @@ class TestNeutronv2WithMock(test.TestCase):
 
     @mock.patch('nova.network.neutronv2.api.get_client')
     def test_get_floating_ips_by_project_not_found(self, mock_ntrn):
+        mock_nc = mock.Mock()
+        mock_ntrn.return_value = mock_nc
+        mock_nc.list_floatingips.side_effect = exceptions.NotFound()
+        fips = self.api.get_floating_ips_by_project(self.context)
+        self.assertEqual([], fips)
+
+    @mock.patch('nova.network.neutronv2.api.get_client')
+    def test_get_floating_ips_by_project_not_found_legacy(self, mock_ntrn):
+        # FIXME(danms): Remove this test along with the code path it tests
+        # when bug 1513879 is fixed.
         mock_nc = mock.Mock()
         mock_ntrn.return_value = mock_nc
         # neutronclient doesn't raise NotFound in this scenario, it raises a