That's not science. You must perform a test that can refute your theory for it to be a true test. If you set it up to produce a particular outcome, it is not a test, but some form of demonstration. The only way something can be accepted as scientific is if you can propose something that could invalidate your theory.
It is also a mistake to think that people who are behind evolution are athiests. Many people of faith accept evolution and believe the first Genesis chapter to be allegorical and not literal. The important point to me is to understand that God is responsible for everything. Evolution does not challenge this.
Agreed, not all are but some of the people that have engaged me and what I have read and seen in other places forms my opinion.
So, in your scenario on testing, does this scenario play out with the global warming crowd. Seems to me, it would have been refuted long ago.