Adding unittests for glance client

Adding unittest for glance client extension.

Change-Id: Id51cd81d1a5f1d24a0362d6d38b4186409567d11

tests/unit/test_glance_client.py

@@ -0,0 +1,49 @@
+# Copyright 2016 Intel
+#
+# 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.
+import mock
+import testtools
+
+from syntribos.extensions.glance import client
+
+
+class _Image_meta_data():
+    def __init__(self):
+        self.id = 1234
+
+
+class _Images():
+
+    def create(self, name):
+        return _Image_meta_data()
+
+    def list(data):
+        return []
+
+
+class _FakeGlance():
+    """Fake glance client object."""
+    images = _Images()
+
+
+def fake_get_client():
+    return _FakeGlance()
+
+
+class TestGlanceClientCreateResources(testtools.TestCase):
+    """Tests all getter methods for glance extension client."""
+
+    @mock.patch("syntribos.extensions.glance.client._get_client",
+                side_effect=fake_get_client)
+    def test_get_image_id(self, get_client_fn):
+        self.assertEqual(1234, client.get_image_id())