Fix the cleanup issue of NeutronTrunk

Catch the exception in list(),otherwise break if neutron trunk is not found.

Change-Id: Ied7d26c8e2d674601b2a5d83c5b9b5f7d60d3436

rally_openstack/cleanup/resources.py

@@ -390,7 +390,14 @@ class NeutronFloatingIP(NeutronMixin):
                tenant_resource=True)
 class NeutronTrunk(NeutronMixin):
     # Trunks must be deleted before the parent/subports are deleted
-    pass
+
+    def list(self):
+        try:
+            return super(NeutronTrunk, self).list()
+        except Exception as e:
+            if getattr(e, "status_code", 400) == 404:
+                return []
+            raise
 
 
 @base.resource("neutron", "port", order=next(_neutron_order),

tests/unit/cleanup/test_resources.py

@@ -422,6 +422,31 @@ class NeutronFloatingIPTestCase(test.TestCase):
             tenant_id="foo")
 
 
+class NeutronTrunkTestcase(test.TestCase):
+
+    def test_list(self):
+        user = mock.MagicMock()
+        trunk = resources.NeutronTrunk(user=user)
+        user.neutron().list_trunks.return_value = {
+            "trunks": ["trunk"]}
+        self.assertEqual(["trunk"], trunk.list())
+        user.neutron().list_trunks.assert_called_once_with(
+            tenant_id=None)
+
+    def test_list_with_not_found(self):
+
+        class NotFound(Exception):
+            status_code = 404
+
+        user = mock.MagicMock()
+        trunk = resources.NeutronTrunk(user=user)
+        user.neutron().list_trunks.side_effect = NotFound()
+
+        self.assertEqual([], trunk.list())
+        user.neutron().list_trunks.assert_called_once_with(
+            tenant_id=None)
+
+
 class NeutronPortTestCase(test.TestCase):
 
     def test_delete(self):