Topic: turning fixtures on and off at will

i have a rails functional test case that uses fixtures.

all but one test in the test case need the fixtures, the other one is to test gracefully recovery when there are no instances of that model present, therefore it needs no fixtures loaded.

my problem is that i need to not load the fixtures for that test and have them loaded for all the others. i cannot seem to figure this out.

if i try Model.delete_all, it messes up the other tests because they depend on the fixtures being there. if i put that one test in a new test case it works find but it is logically tied to the other tests so it would be a shame to have it in a different class.

any ideas?