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janet/test/helper.janet
2020-11-14 15:56:48 -06:00

42 lines
1.2 KiB
Clojure

# Helper code for running tests
(var num-tests-passed 0)
(var num-tests-run 0)
(var suite-num 0)
(var start-time 0)
(defn assert
"Override's the default assert with some nice error handling."
[x &opt e]
(default e "assert error")
(++ num-tests-run)
(when x (++ num-tests-passed))
(def str (string e))
(def truncated
(if (> (length e) 40) (string (string/slice e 0 35) "...") (string e)))
(if x
(eprintf "\e[32m✔\e[0m %s: %v" truncated x)
(eprintf "\n\e[31m✘\e[0m %s: %v" truncated x))
x)
(defmacro assert-error
[msg & forms]
(def errsym (keyword (gensym)))
~(assert (= ,errsym (try (do ,;forms) ([_] ,errsym))) ,msg))
(defmacro assert-no-error
[msg & forms]
(def errsym (keyword (gensym)))
~(assert (not= ,errsym (try (do ,;forms) ([_] ,errsym))) ,msg))
(defn start-suite [x]
(set suite-num x)
(set start-time (os/clock))
(eprint "\nRunning test suite " x " tests...\n "))
(defn end-suite []
(def delta (- (os/clock) start-time))
(eprintf "\n\nTest suite %d finished in %.3f seconds" suite-num delta)
(eprint num-tests-passed " of " num-tests-run " tests passed.\n")
(if (not= num-tests-passed num-tests-run) (os/exit 1)))