Clojurians Log v2

What is the correct way to make some common code that is shared across tests (in our case an extension to clojure.test/assert-expr) accessible to all tests through the whole project? At the moment we're considering adding a component and adding that component to the dev project test alias paths, and to add that component to the test dependencies of each project, and we think that'd work out well for poly test, but before committing to this we wanted to see if there's a proper way to handle this.