IMO it seems kind of terrible.

You're not going to remember what tests "test 3" relies on. They aren't actually linear progressions 123. They will be "test this", "test that". If 3 fails you're going to want to immediately go and add all those asserts back to help you debug your assumptions.

The tests _will_ drift and that should be fine. Implicitly depending on other tests doesn't really get me anything.