Below is what I get when I try that:

    > (def bar [1 2 3 4 5])
    > (deftest foo (is (empty? bar)))
    > (foo)

    ;;-> FAIL in (foo) (form-init1286192119959456815.clj:1)
    ;;-> expected: (empty? bar)
    ;;-> actual: (not (empty? [1 2 3 4 5]))