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janet/test/helper.janet
2020-04-03 15:23:29 -05:00

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# Helper code for running tests
(var num-tests-passed 0)
(var num-tests-run 0)
(var suite-num 0)
(var numchecks 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))
(if x
(do
(when (= numchecks 25)
(set numchecks 0)
(print))
(++ numchecks)
(file/write stdout "\e[32m✔\e[0m"))
(do
(file/write stdout "\n\e[31m✘\e[0m ")
(set numchecks 0)
(print e)))
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))
(print "\nRunning test suite " x " tests...\n "))
(defn end-suite []
(def delta (- (os/clock) start-time))
(printf "\n\nTest suite %d finished in %.3f seconds" suite-num delta)
(print num-tests-passed " of " num-tests-run " tests passed.\n")
(if (not= num-tests-passed num-tests-run) (os/exit 1)))