Minilisp.pm/t/math.t

(plan 16)

(expect "+ - 3 parameters" (= (+ 2 4 2) 8))
(expect "- - 3 parameters" (= (- 8 2 3) 3))
(expect "* - 2 parameters" (= (* 5 6) 30))
(expect "/ - 2 parameters" (= (/ 64 4) 16))

(expect "evenp - 2" (evenp 2))
(expect "evenp - 3" (not (evenp 3)))

(expect "oddp - 5" (oddp 5))
(expect "oddp - 6" (not (oddp 6)))

(expect "zerop - 0" (zerop 0))
(expect "zerop - 1" (not (zerop 1)))

(expect "max - 2 parameters" (= (max 5 30) 30))
(expect "min - 2 parameters" (= (min 5 30) 5))


(comment (mod -1 5))
(expect "mod - (mod -1 5) == 4"
        (= (mod -1 5) 4))

(expect "mod - (mod 13 4) == 1"
        (= (mod 13 4) 1))

(expect "mod - (mod 13.5 1) == 0.5"
        (= (mod 13.5 1) 0.5))

(expect "mod - (mod -13.5 1) == 0.5"
        (= (mod -13.5 1) 0.5))