[geophile]

That only works if the code you are testing does everything in auto-commit mode. Which is often a terrible idea. If your code uses transactions, then no, the framework cannot rely on rollback to do setup and teardown.

[brianwawok]

I use django with transactions and tests work fine. I think a transaction within a transaction is treated as a checkpoint.

[afarrell]

Tests with transactions works fine in rails/rspec.