overflow.rs - mozsearch

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/// Verify we're built with run-time integer overflow detection.

// This Source Code Form is subject to the terms of the Mozilla Public

// License, v. 2.0. If a copy of the MPL was not distributed with this

// file, You can obtain one at https://mozilla.org/MPL/2.0/.

#[test]

#[should_panic(expected = "attempt to add with overflow")]

fn overflow_protection() {

    let edge = u32::max_value();

    assert_eq!(0u32, edge + 1);

    let edge = u64::max_value();

    assert_eq!(0u64, edge + 1);