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Added tests.

This commit is contained in:
nwin 2017-02-04 10:42:12 +01:00
parent 450c0e2760
commit 58b7da46d2
1 changed files with 11 additions and 0 deletions
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11
traits/src/ops/wrapping.rs
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@ -75,3 +75,14 @@ wrapping_impl!(WrappingMul, wrapping_mul, i16);
wrapping_impl!(WrappingMul, wrapping_mul, i32);
wrapping_impl!(WrappingMul, wrapping_mul, i64);
wrapping_impl!(WrappingMul, wrapping_mul, isize);
#[test]
fn test_wrapping_traits() {
fn wrapping_add<T: WrappingAdd>(a: T, b: T) -> T { a.wrapping_add(&b) }
fn wrapping_sub<T: WrappingSub>(a: T, b: T) -> T { a.wrapping_sub(&b) }
fn wrapping_mul<T: WrappingMul>(a: T, b: T) -> T { a.wrapping_mul(&b) }
assert_eq!(wrapping_add(255, 1), 0u8);
assert_eq!(wrapping_sub(0, 1), 255u8);
assert_eq!(wrapping_mul(255, 2), 254u8);
}