rust-kernel / tests / should_panic.rs

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
//! Passes only if the test panics. No test harness (`harness = false` in
//! Cargo.toml): a single test function, called directly from `_start`.
#![no_std]
#![no_main]

use core::panic::PanicInfo;
use rustbelt::{QemuExitCode, exit_qemu, serial_print, serial_println};

#[unsafe(no_mangle)]
pub extern "C" fn _start() -> ! {
    should_fail();
    serial_println!("[test did not panic]");
    exit_qemu(QemuExitCode::Failed);
    rustbelt::hlt_loop();
}

fn should_fail() {
    serial_print!("should_panic::should_fail...\t");
    assert_eq!(0, 1);
}

#[panic_handler]
fn panic(_info: &PanicInfo) -> ! {
    serial_println!("[ok]");
    exit_qemu(QemuExitCode::Success);
    rustbelt::hlt_loop();
}