src/test/ui/default-alloc-error-hook.rs

   1 // run-pass
   2 // ignore-emscripten no processes
   3 // ignore-sgx no processes
   4
   5 use std::alloc::{Layout, handle_alloc_error};
   6 use std::env;
   7 use std::process::Command;
   8 use std::str;
   9
  10 fn main() {
  11     if env::args().len() > 1 {
  12         handle_alloc_error(Layout::new::<[u8; 42]>())
  13     }
  14
  15     let me = env::current_exe().unwrap();
  16     let output = Command::new(&me).arg("next").output().unwrap();
  17     assert!(!output.status.success(), "{:?} is a success", output.status);
  18     assert_eq!(str::from_utf8(&output.stderr).unwrap(), "memory allocation of 42 bytes failed\n");
  19 }