rsix 0.22.4

Safe Rust ("rs") bindings to POSIX-like/Unix-like/Linux ("ix") syscalls
Documentation 
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use rsix::io::isatty;
use tempfile::{tempdir, TempDir};

#[allow(unused)]
fn tmpdir() -> TempDir {
    tempdir().expect("expected to be able to create a temporary directory")
}

#[test]
fn std_file_is_not_terminal() {
    let tmpdir = tempfile::tempdir().unwrap();
    assert!(!isatty(
        &std::fs::File::create(tmpdir.path().join("file")).unwrap()
    ));
    assert!(!isatty(
        &std::fs::File::open(tmpdir.path().join("file")).unwrap()
    ));
}

#[test]
fn stdout_stderr_terminals() {
    // This test is flaky under qemu.
    if std::env::vars().any(|var| var.0.starts_with("CARGO_TARGET_") && var.0.ends_with("_RUNNER"))
    {
        return;
    }
    assert_eq!(isatty(&std::io::stdout()), atty::is(atty::Stream::Stdout));
    assert_eq!(isatty(&std::io::stderr()), atty::is(atty::Stream::Stderr));
}

#[test]
fn stdio_descriptors() {
    #[cfg(unix)]
    use std::os::unix::io::AsRawFd;
    #[cfg(target_os = "wasi")]
    use std::os::wasi::io::AsRawFd;

    unsafe {
        assert_eq!(rsix::io::stdin().as_raw_fd(), std::io::stdin().as_raw_fd());
        assert_eq!(
            rsix::io::stdout().as_raw_fd(),
            std::io::stdout().as_raw_fd()
        );
        assert_eq!(
            rsix::io::stderr().as_raw_fd(),
            std::io::stderr().as_raw_fd()
        );
    }
}