Not with PG. A couple weeks ago I was working on a project that used truncation cleaning, the test suite took 3m40s. I switched it to cleaning with transactions and the the test suite ran in 5.8s.
Truncation cleaning is extremely slow, not only because the cleaning is slower but because you actually have to commit everything your test code does.
Truncation cleaning is extremely slow, not only because the cleaning is slower but because you actually have to commit everything your test code does.