3 ms·

With Clojure you get that feedback loop by running everything in an open repl. No startup time needed.

• pmarreck 8y ago
  so you rerun tests in a REPL? what happens when something is redefined?
  • yogthos 8y ago
    Typically Clojure apps are structured to be reloadable meaning that you don't have any global state, and you can easily flush the current REPL state http://thinkrelevance.com/blog/2013/06/04/clojure-workflow-reloaded http://thinkrelevance.com/blog/2013/06/04/clojure-workflow-r... There are also tools like lein-test-refresh https://github.com/jakemcc/lein-test-refresh https://github.com/jakemcc/lein-test-refresh that figure out what needs to be reloaded automatically. You start it up, it watches your namespaces for changes, and reruns tests as needed. As a bonus it can even hook into your OS notification system and let you know if any tests fail.
  • ilikehurdles 8y ago
    A lot of editor integration will handle reloading and test-running for you (including VSCode's calva extension, Cursive, and Proto REPL for Atom, although it's less "automatic" than the others).