You can't avoid randomness and entropy, it's just something that's needed in too many places. For test repeatability though, whatever seeds a test run uses shou

You can't avoid randomness and entropy, it's just something that's needed in too many places. For test repeatability though, whatever seeds a test run uses should be saved in order to repeat that test exactly. Best of both worlds: you get to cover weird bugs that only show up when stuff is in a certain order, and you can repeat the tests exactly.