rust/src/test/ui/run-pass/issues/issue-43853.rs

// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

// ignore-wasm32-bare compiled with panic=abort by default

use std::panic;

fn test() {
    wait(|| panic!());
}

fn wait<T, F: FnOnce() -> T>(f: F) -> F::Output {
    From::from(f())
}

fn main() {
    let result = panic::catch_unwind(move || test());
    assert!(result.is_err());
}