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Code Issues 1 Releases Wiki Activity

Add test cases for div and mod

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primo-ppcg
2023-06-30 19:28:10 +07:00
parent 8a62c742e6
commit b3db367ae7
4 changed files with 62 additions and 29 deletions
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50
test/suite-inttypes.janet
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@@ -171,22 +171,35 @@
(assert (not (even? (int/s64 "-1001"))) "even? 6")
# integer type operations
(defn modcheck [x y]
(assert (= (string (mod x y)) (string (mod (int/s64 x) y)))
(string "int/s64 (mod " x " " y ") expected " (mod x y) ", got "
(mod (int/s64 x) y)))
(assert (= (string (% x y)) (string (% (int/s64 x) y)))
(string "int/s64 (% " x " " y ") expected " (% x y) ", got "
(% (int/s64 x) y))))
(defn opcheck [int x y]
(each op [mod % div]
(assert (compare= (op x y) (op (int x) y))
(string int " (" op " " x " " y ") expected " (op x y)
", got " (op (int x) y)))
(assert (compare= (op x y) (op x (int y)))
(string int " (" op " " x " " y ") expected " (op x y)
", got " (op x (int y))))
(assert (compare= (op x y) (op (int x) (int y)))
(string int " (" op " " x " " y ") expected " (op x y)
", got " (op (int x) (int y))))))
(modcheck 1 2)
(modcheck 1 3)
(modcheck 4 2)
(modcheck 4 1)
(modcheck 10 3)
(modcheck 10 -3)
(modcheck -10 3)
(modcheck -10 -3)
(loop [x :in [-5 -3 0 3 5]
y :in [-4 -3 3 4]]
(opcheck int/s64 x y)
(if (and (>= x 0) (>= y 0))
(opcheck int/u64 x y)))
(each int [int/s64 int/u64]
(each op [% / div]
(assert-error "division by zero" (op (int 7) 0))
(assert-error "division by zero" (op 7 (int 0)))
(assert-error "division by zero" (op (int 7) (int 0)))))
(each int [int/s64 int/u64]
(loop [x :in [-5 -3 0 3 5]]
(assert (= (int x) (mod (int x) 0)) (string int " mod 0"))
(assert (= (int x) (mod x (int 0))) (string int " mod 0"))
(assert (= (int x) (mod (int x) (int 0))) (string int " mod 0"))))
# Check for issue #1130
# 7e65c2bda
@@ -253,6 +266,11 @@
(assert (= (compare (i64 -1) (u64 1)) -1) "compare 11")
(assert (= (compare (i64 -1) (u64 -1)) -1) "compare 12")
# off by 1 error in inttypes
# a3e812b86
(assert (= (int/s64 "-0x8000_0000_0000_0000")
(+ (int/s64 "0x7FFF_FFFF_FFFF_FFFF") 1)) "int types wrap around")
(assert (= (int/s64 "0x7FFF_FFFF_FFFF_FFFF")
(- (int/s64 "-0x8000_0000_0000_0000") 1)) "int types wrap around")
(end-suite)