haystack

A Clojure library for debugging differences between large datasets that are supposed to be equal.

Obtention

Via Leiningen: [com.gfredericks/haystack "0.3.0"]

Usage

(require '[com.gfredericks.haystack :refer [needle]])

(def v (vec (range 100000)))
(def v' (assoc v 3878 :foo))

(needle v v' {})
=> {:reason :different-element,
    :key 3878,
    :diff {:reason :different-types,
           :types [java.lang.Long clojure.lang.Keyword]}}

TODO

• Document options better
• Make return values less confusing
• Sometimes reporting type differences is misleading?

License

Copyright © 2013 Gary Fredericks

Distributed under the Eclipse Public License, the same as Clojure.