Let me propose a third option: Don't rewrite your old code.

In fact, don't ever rewrite working code. At least not all at once.

Far better IMHO:

  1. Pick a piece of functionality in your old code.
  2. Write tests for it.
  3. Make sure that it works (you will likely find some bugs you didn't know about :)
  4. If it makes you happy, rewrite/refactor this small portion of your old code.
  5. Repeat

In this manner, you will always have a working application.

Iteratively improving a piece of code is almost always the better idea.

My two cents,

-guinex

In reply to Re: Recommendations re tests wrt a reference implementation by guinex
in thread Recommendations re tests wrt a reference implementation by blazar

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