Make Blockchian tests analyzable again

This takes out the blockchain test functions from the macro into their
own independent functions. This allows static analysis over the functions.
using which few redundant code have been removed.

This increases overall readability of the test logic and allows new
contributors to easily contribute into testing framework.

Co-authored-by: SanthoshAnguluri <santhoshanguluri15@gmail.com>
Co-authored-by: saikishore222 <saikishore.chsk@gmail.com>

Author: 3 people