4627bff6e6
And if an allocation while printing the backtrace fails, don't try to print another backtrace as that will never succeed.
30 lines
997 B
Rust
30 lines
997 B
Rust
//@ run-pass
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//@ needs-subprocess
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use std::alloc::{Layout, handle_alloc_error};
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use std::process::Command;
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use std::{env, str};
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fn main() {
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if env::args().len() > 1 {
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handle_alloc_error(Layout::new::<[u8; 42]>())
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}
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let me = env::current_exe().unwrap();
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let output = Command::new(&me).env("RUST_BACKTRACE", "0").arg("next").output().unwrap();
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assert!(!output.status.success(), "{:?} is a success", output.status);
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let mut stderr = str::from_utf8(&output.stderr).unwrap();
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// When running inside QEMU user-mode emulation, there will be an extra message printed by QEMU
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// in the stderr whenever a core dump happens. Remove it before the check.
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stderr = stderr
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.strip_suffix("qemu: uncaught target signal 6 (Aborted) - core dumped\n")
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.unwrap_or(stderr);
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assert_eq!(
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stderr,
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"memory allocation of 42 bytes failed\n\
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note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace\n"
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);
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}
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