On Wed, Dec 1, 2010 at 9:38 AM, Laurent PETIT <laurent.pe...@gmail.com> wrote: > 2010/12/1 Ken Wesson <kwess...@gmail.com> >> >> On Wed, Dec 1, 2010 at 8:29 AM, Laurent PETIT <laurent.pe...@gmail.com> >> wrote: >> > If so, then it may be sufficient to leverage the possibility, in your >> > testing "framework" (clojure.test ? anything else ...) to redefine the >> > functions of the backend before the tests run. I'm pretty sure there are >> > already such features allowing to temporarily "redef" (and "restore" at >> > the >> > end) the root value of global vars. >> >> (binding [*global-var* temp-value] >> (run-some-tests)) >> >> :) >> >> > > I didn't forget it. But : > * in Clojure 1.2 : these binding do not automatically flow from thread to > thread, so they do not work "in the general case" (though arguably this > general case may not be the usual case) > * in Clojure 1.3 : the bindings will now flow from thread to thread when > using clojure primitives (agents, futures, pmap, etc.), *but* the default > for vars will change from dynamic rebindable to not dynamic rebindable > (dynamic rebindability will have to be explicit) > > :)
If you need it in multiple threads, you're just gonna have to go with the slightly evil (let [x *foo*] (alter-var-root #'*foo* (constantly testing-value)) (do-some-tests) (alter-var-root #'*foo* (constantly x))) -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
