diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/test/ui/no-stdio.rs | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/src/test/ui/no-stdio.rs b/src/test/ui/no-stdio.rs index e72b7b26e22..1b0ad930da6 100644 --- a/src/test/ui/no-stdio.rs +++ b/src/test/ui/no-stdio.rs @@ -36,6 +36,16 @@ unsafe fn without_stdio<R, F: FnOnce() -> R>(f: F) -> R { return r } +#[cfg(unix)] +fn assert_fd_is_valid(fd: libc::c_int) { + if unsafe { libc::fcntl(fd, libc::F_GETFD) == -1 } { + panic!("file descriptor {} is not valid: {}", fd, io::Error::last_os_error()); + } +} + +#[cfg(windows)] +fn assert_fd_is_valid(_fd: libc::c_int) {} + #[cfg(windows)] unsafe fn without_stdio<R, F: FnOnce() -> R>(f: F) -> R { type DWORD = u32; @@ -77,10 +87,18 @@ unsafe fn without_stdio<R, F: FnOnce() -> R>(f: F) -> R { fn main() { if env::args().len() > 1 { + // Writing to stdout & stderr should not panic. println!("test"); assert!(io::stdout().write(b"test\n").is_ok()); assert!(io::stderr().write(b"test\n").is_ok()); + + // Stdin should be at EOF. assert_eq!(io::stdin().read(&mut [0; 10]).unwrap(), 0); + + // Standard file descriptors should be valid on UNIX: + assert_fd_is_valid(0); + assert_fd_is_valid(1); + assert_fd_is_valid(2); return } @@ -109,12 +127,12 @@ fn main() { .stdout(Stdio::null()) .stderr(Stdio::null()) .status().unwrap(); - assert!(status.success(), "{:?} isn't a success", status); + assert!(status.success(), "{} isn't a success", status); // Finally, close everything then spawn a child to make sure everything is // *still* ok. let status = unsafe { without_stdio(|| Command::new(&me).arg("next").status()) }.unwrap(); - assert!(status.success(), "{:?} isn't a success", status); + assert!(status.success(), "{} isn't a success", status); } |