Add testcase for callback groups

Change-Id: Icbdc8612d73bed065227d9edfde1426206886652
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/src/test/.gitignore b/src/test/.gitignore
index 9c5e674..55db6d7 100644
--- a/src/test/.gitignore
+++ b/src/test/.gitignore
@@ -9,3 +9,5 @@
 /propertywatchgentest
 /callbackgentest.hpp
 /callbackgentest
+/callbackgroupgentest.hpp
+/callbackgroupgentest