inline test spec

[alidcast]

would there be a way to write inline tests with ghostwheel?

as an example, there's a clojureverse post of someone using defn-spec for inline tests; here's the code snippet:

(defn abs
  "The absolute value of a number."
   {:test (fn []
            (is (= (Math/abs 5) 5))
            (is (= (Math/abs -2) 2))
            (is (= (Math/abs 0) 0)))}
  [x]
  {:pre [(number? x)]}
  (if (pos? x)
    x
    (- x)))

(though I'd personally prefer if the test spec came after the function body, rather than before it, if possible)