Clearing the session of an integration test?

Hi -

I'm wondering if there is any way to clear the session after an
integration test has been run. The situation I'm in is that I have 40+
unit tests that run fine on their own, but when I run them with the one
integration test I have, the integration test causes a bunch of the
unit tests to fail. I've tried reset! in teardown and setting
@session=nil in the integration test, but that doesn't seem to make any
difference. Has anyone else had this issue? TIA.