Dear Gautam Raju,
Thanks for your article which is quite pertinent.
I hope that you know how VVLSI Chips are Tested. In case of such Chips there’s no concept of Test - and- Retest - and … …
Same way please apply your genius to develop an Advanced Program to TEST THE CODES.
It should be such that once a CODE IS SUBMITTED FOR TESTING the TESTING TOOL should test it threadbare and dig out errors.
Manual testing of Code should at this juncture already be out of date as present age is that of AI and Machine Learning (indirectly akin to self writing the Code).
Please try to think in this direction - unless I am talking absurd - which is not impossible.