fix(deps): Adding missing test dependencies

glide.lock

@@ -1,5 +1,5 @@
 hash: 2fc61aa64319b4dc6cd4a107c46a25264865f2e07362d7dcd8a3db002278d6a6
-updated: 2016-12-13T10:01:05.940550036-05:00
+updated: 2016-12-13T17:07:47.402783003-05:00
 imports:
 - name: cloud.google.com/go
   version: 3b1ae45394a234c385be014e9a488f2bb6eef821
@@ -490,4 +490,14 @@ imports:
   - third_party/forked/golang/netutil
   - third_party/forked/golang/reflect
   - third_party/forked/golang/template
-testImports: []
+testImports:
+- name: github.com/pmezard/go-difflib
+  version: d8ed2627bdf02c080bf22230dbb337003b7aba2d
+  subpackages:
+  - difflib
+- name: github.com/stretchr/testify
+  version: e3a8ff8ce36581f87a15341206f205b1da467059
+  subpackages:
+  - assert
+  - mock
+  - require