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[ci skip] mul multipart tests

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This commit is contained in:
Nikolay Volf 2016-02-26 16:12:47 +03:00
parent 228e3fefe0
commit 3858a2011f
1 changed files with 46 additions and 0 deletions
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46
util/src/uint.rs
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@ -1516,5 +1516,51 @@ mod tests {
assert_eq!(U256([::std::u64::MAX, ::std::u64::MAX, ::std::u64::MAX, 0]), result); assert_eq!(U256([::std::u64::MAX, ::std::u64::MAX, ::std::u64::MAX, 0]), result);
} }
#[test]
fn u256_multi_muls() {
let (result, _) = U256([0, 0, 0, 0]).overflowing_mul(U256([0, 0, 0, 0]));
assert_eq!(U256([0, 0, 0, 0]), result);
let (result, _) = U256([1, 0, 0, 0]).overflowing_mul(U256([1, 0, 0, 0]));
assert_eq!(U256([1, 0, 0, 0]), result);
let (result, _) = U256([5, 0, 0, 0]).overflowing_mul(U256([5, 0, 0, 0]));
assert_eq!(U256([25, 0, 0, 0]), result);
let (result, _) = U256([0, 5, 0, 0]).overflowing_mul(U256([0, 5, 0, 0]));
assert_eq!(U256([0, 0, 25, 0]), result);
let (result, _) = U256([0, 0, 0, 1]).overflowing_mul(U256([1, 0, 0, 0]));
assert_eq!(U256([0, 0, 0, 1]), result);
let (result, _) = U256([0, 0, 0, 5]).overflowing_mul(U256([2, 0, 0, 0]));
assert_eq!(U256([0, 0, 0, 10]), result);
let (result, _) = U256([0, 0, 1, 0]).overflowing_mul(U256([0, 5, 0, 0]));
assert_eq!(U256([0, 0, 0, 5]), result);
let (result, _) = U256([0, 0, 8, 0]).overflowing_mul(U256([0, 0, 7, 0]));
assert_eq!(U256([0, 0, 0, 0]), result);
let (result, _) = U256([2, 0, 0, 0]).overflowing_mul(U256([0, 5, 0, 0]));
assert_eq!(U256([0, 10, 0, 0]), result);
let (result, _) = U256([::std::u64::MAX, 0, 0, 0]).overflowing_mul(U256([::std::u64::MAX, 0, 0, 0]));
assert_eq!(U256([1, ::std::u64::MAX-1, 0, 0]), result);
let (result, _) = U256([0, 0, 0, ::std::u64::MAX]).overflowing_mul(U256([0, 0, 0, ::std::u64::MAX]));
assert_eq!(U256([0, 0, 0, 0]), result);
let (result, _) = U256([1, 0, 0, 0]).overflowing_mul(U256([0, 0, 0, ::std::u64::MAX]));
assert_eq!(U256([0, 0, 0, ::std::u64::MAX]), result);
let (result, _) = U256([::std::u64::MAX, ::std::u64::MAX, ::std::u64::MAX, ::std::u64::MAX])
.overflowing_mul(U256([::std::u64::MAX, ::std::u64::MAX, ::std::u64::MAX, ::std::u64::MAX]));
assert_eq!(U256([1, 0, 0, 0]), result);
}
} }