Adds tests and documentation script.

tests/utils.py

@@ -0,0 +1,33 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2015 GNS3 Technologies Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import asyncio
+from unittest.mock import patch
+
+
+def asyncio_patch(function, *args, **kwargs):
+    @asyncio.coroutine
+    def fake_anwser(*a, **kw):
+        return kwargs["return_value"]
+
+    def register(func):
+        @patch(function, return_value=fake_anwser)
+        @asyncio.coroutine
+        def inner(*a, **kw):
+            return func(*a, **kw)
+        return inner
+    return register