bug 2266 : added more types of schema nodes to increase code coverage

Change-Id: I7372157ffc2b2e69ff9ae34b44eaeecadbf6b75d
Signed-off-by: Harman Singh <harmasin@cisco.com>
(cherry picked from commit 3b743648ca93c5f65b8334fe699b4ceb5aaa054d)
Merge "bug 2266 : added more types of schema nodes to increase code coverage"