Add unit test for simple fabric default classes

Change-Id: I47e88a5819833effe92b4e802a7ecaf001e6a6c2
diff --git a/apps/simplefabric/app/BUCK b/apps/simplefabric/app/BUCK
index 104aee1..6aefd2c 100644
--- a/apps/simplefabric/app/BUCK
+++ b/apps/simplefabric/app/BUCK
@@ -17,6 +17,7 @@
     api_description = 'REST API for Simple Fabric',
     api_package = 'org.onosproject.simplefabric.web',
     api_title = 'Simple Fabric API',
+    api_version = '1.0',
     deps = COMPILE_DEPS,
     test_deps = TEST_DEPS,
     web_context = '/onos/v1/simplefabric',