Fix to libstd test

Author: workingjubilee

library/core/tests/num/wrapping.rs

@@ -1,6 +1,4 @@
-// run-pass
-
-use std::num::Wrapping;
+use core::num::Wrapping;
 
 macro_rules! wrapping_operation {
     ($result:expr, $lhs:ident $op:tt $rhs:expr) => {
@@ -29,49 +27,53 @@ macro_rules! wrapping_assignment {
 
 macro_rules! wrapping_test {
     ($type:ty, $min:expr, $max:expr) => {
-        let zero: Wrapping<$type> = Wrapping(0);
-        let one: Wrapping<$type> = Wrapping(1);
-        let min: Wrapping<$type> = Wrapping($min);
-        let max: Wrapping<$type> = Wrapping($max);
+        #[test]
+        fn wrapping_$type() {
+            let zero: Wrapping<$type> = Wrapping(0);
+            let one: Wrapping<$type> = Wrapping(1);
+            let min: Wrapping<$type> = Wrapping($min);
+            let max: Wrapping<$type> = Wrapping($max);
 
-        wrapping_operation!(min, max + one);
-        wrapping_assignment!(min, max += one);
-        wrapping_operation!(max, min - one);
-        wrapping_assignment!(max, min -= one);
-        wrapping_operation!(max, max * one);
-        wrapping_assignment!(max, max *= one);
-        wrapping_operation!(max, max / one);
-        wrapping_assignment!(max, max /= one);
-        wrapping_operation!(zero, max % one);
-        wrapping_assignment!(zero, max %= one);
-        wrapping_operation!(zero, zero & max);
-        wrapping_assignment!(zero, zero &= max);
-        wrapping_operation!(max, zero | max);
-        wrapping_assignment!(max, zero |= max);
-        wrapping_operation!(zero, max ^ max);
-        wrapping_assignment!(zero, max ^= max);
-        wrapping_operation!(zero, zero << 1usize);
-        wrapping_assignment!(zero, zero <<= 1usize);
-        wrapping_operation!(zero, zero >> 1usize);
-        wrapping_assignment!(zero, zero >>= 1usize);
-        wrapping_operation!(zero, -zero);
-        wrapping_operation!(max, !min);
+            wrapping_operation!(min, max + one);
+            wrapping_assignment!(min, max += one);
+            wrapping_operation!(max, min - one);
+            wrapping_assignment!(max, min -= one);
+            wrapping_operation!(max, max * one);
+            wrapping_assignment!(max, max *= one);
+            wrapping_operation!(max, max / one);
+            wrapping_assignment!(max, max /= one);
+            wrapping_operation!(zero, max % one);
+            wrapping_assignment!(zero, max %= one);
+            wrapping_operation!(zero, zero & max);
+            wrapping_assignment!(zero, zero &= max);
+            wrapping_operation!(max, zero | max);
+            wrapping_assignment!(max, zero |= max);
+            wrapping_operation!(zero, max ^ max);
+            wrapping_assignment!(zero, max ^= max);
+            wrapping_operation!(zero, zero << 1usize);
+            wrapping_assignment!(zero, zero <<= 1usize);
+            wrapping_operation!(zero, zero >> 1usize);
+            wrapping_assignment!(zero, zero >>= 1usize);
+            wrapping_operation!(zero, -zero);
+            wrapping_operation!(max, !min);
+        }
     };
 }
 
-fn main() {
-    wrapping_test!(i8, std::i8::MIN, std::i8::MAX);
-    wrapping_test!(i16, std::i16::MIN, std::i16::MAX);
-    wrapping_test!(i32, std::i32::MIN, std::i32::MAX);
-    wrapping_test!(i64, std::i64::MIN, std::i64::MAX);
+#[cfg(tests)]
+mod tests {
+    wrapping_test!(i8, i8::MIN, i8::MAX);
+    wrapping_test!(i16, i16::MIN, i16::MAX);
+    wrapping_test!(i32, i32::MIN, i32::MAX);
+    wrapping_test!(i64, i64::MIN, i64::MAX);
     #[cfg(not(target_os = "emscripten"))]
-    wrapping_test!(i128, std::i128::MIN, std::i128::MAX);
-    wrapping_test!(isize, std::isize::MIN, std::isize::MAX);
-    wrapping_test!(u8, std::u8::MIN, std::u8::MAX);
-    wrapping_test!(u16, std::u16::MIN, std::u16::MAX);
-    wrapping_test!(u32, std::u32::MIN, std::u32::MAX);
-    wrapping_test!(u64, std::u64::MIN, std::u64::MAX);
+    wrapping_test!(i128, i128::MIN, i128::MAX);
+    wrapping_test!(isize, isize::MIN, isize::MAX);
+    wrapping_test!(u8, u8::MIN, u8::MAX);
+    wrapping_test!(u16, u16::MIN, u16::MAX);
+    wrapping_test!(u32, u32::MIN, u32::MAX);
+    wrapping_test!(u64, u64::MIN, u64::MAX);
     #[cfg(not(target_os = "emscripten"))]
-    wrapping_test!(u128, std::u128::MIN, std::u128::MAX);
-    wrapping_test!(usize, std::usize::MIN, std::usize::MAX);
+    wrapping_test!(u128, u128::MIN, u128::MAX);
+    wrapping_test!(usize, usize::MIN, usize::MAX);
 }