diff --git a/tests/lua/mocks/extra_fields.lua b/tests/lua/mocks/extra_fields.lua
new file mode 100644
index 0000000..1bba814
--- /dev/null
+++ b/tests/lua/mocks/extra_fields.lua
@@ -0,0 +1,23 @@
+-- Copyright 2015 Mirantis, Inc.
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+local M = {}
+setfenv(1, M) -- Remove external access to contain everything in the module
+
+environment_id = 42
+
+tags = {
+    environment_id=environment_id
+}
+
+return M