I recently was looking at Test::MockObject as a means of faking a database in a test suite I am currently working on. But then it occured to me, what about a mock DBI driver. I looked around on CPAN, but could not find anything of the sort (at least not with the search terms I was using), I even poked around Google, but everything was coming up Java. So i decided I should give it a whirl myself. I have downloaded DBD::Template as well as DBD::FIle (the "default" driver supplied with DBI), and started digging through them. But before I go to far, I thought I would ask the monastary to see if I am re-inventing the wheel here already.
Has anyone either done this, or heard of someone doing this? Or ever tried to do this before and failed/gave up for whatever reason? Also I would invite comment on the idea itself, any thoughts on what it should be able to do, etc, etc. I am only really in the researching stage so far, so I am open to any ideas.
Update To Clarify
The idea is not so much to do tests on a file or memory based DB, but to be able to interact transparently with DBI and have the Driver be able to validate the tests in a way. In particular in cases of dynamically generated SQL, as opposed to straight DBI interaction.
lachoy wrote DBD::Mock, which is exactly what I was looking for (pays to ask before you jump in I guess). I have been using it all day today with much success, I recommend it to other who might have similar needs. Excellent job lachoy!