clojure.test: readable stacktraces

[pesterhazy]

Tests using clojure.test print sci-unaware stacktraces. When an exception happens, the stacktrace contains no reference to the sci functions (only internals). E.g.

user=> (require '[clojure.test :as t]) (defn myfun [] (throw (Exception. "boom"))) (t/deftest t (t/is (= 0 (f)))) (t)
ERROR in (t) (<repl>:15)
expected: (= 0 (f))
  actual: java.lang.Exception: boom
 at java.lang.reflect.Constructor.newInstanceWithCaller (Constructor.java:500)
    java.lang.reflect.Constructor.newInstance (Constructor.java:484)
    sci.impl.Reflector.invokeConstructor (Reflector.java:310)
...

Instead, I would expect to see a sci-aware stacktrace with meaningful files and line numbers.

Describe alternatives you've considered
The problem could be fixed in a number of places. For example, in this gist I tried to monkey-patch a better stack printer into the clojure.test/report function.

However, two approaches are probably better:

• Update clojure.test (without monkey-patching)
• Update clojure.stacktrace