Update Array#median test to make it more picky
Update Array#median test to make it more picky

nicolasmccurdy/magician-clojure,nicolasmccurdy/magician-lisp,nicolasmccurdy/magician-lisp,nicolasmccurdy/magician-haskell,nicolasmccurdy/magician-clojure,nicolasmccurdy/magician