I think this might be a special case related to inlining in the Clojure compiler. It has nothing to do with clojure.test.
The hint is the name of the function in the error message: core/quot--inliner--4345 The "inlined" version of `quot` is defined for two arguments: https://github.com/clojure/clojure/blob/b8607d5870202034679cda50ec390426827ff692/src/clj/clojure/core.clj#L1232 The inlined version of `/` is also defined for two arguments, but has an additional check before inlining that there is more than 1 argument: https://github.com/clojure/clojure/blob/b8607d5870202034679cda50ec390426827ff692/src/clj/clojure/core.clj#L991 -S -- 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 --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.