Add Node, Slice and Instance API tests

Change-Id: I3c3b9e8fbb7e485689bd8abac042b2264f6e51e3
diff --git a/src/test/cord-api/Tests/SanityNode.txt b/src/test/cord-api/Tests/SanityNode.txt
index 7f57f9a..0bf27f8 100644
--- a/src/test/cord-api/Tests/SanityNode.txt
+++ b/src/test/cord-api/Tests/SanityNode.txt
@@ -1,5 +1,5 @@
 *** Settings ***
-Documentation     Test suite for Node verification
+Documentation     Test suite for Sanity Test of Node API
 Suite Setup       Read InputFile
 Test Template     Verify Node functionality
 Library           Collections