Run your test namespaces in separate JVMs, so that you can tease out if individual tests are depending on state from other test namespaces.
put this in your profiles.clj or project.clj
:plugins [[lein-test-bang-bang "0.2.0"]]
lein 'test!!'
Copyright (C) 2013 Joe Gallo
Distributed under the Eclipse Public License, the same as Clojure.