sys-rs 0.1.1

ptrace-based Linux system tool reimplementations: strace, gcov, addr2line, debugger
Documentation 
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use std::process::Command;

pub mod testlib;

#[test]
fn test_strace_no_args() {
    let bin = env!("CARGO_BIN_EXE_strace-rs");
    testlib::test_no_args(bin);
}

#[test]
fn test_strace_no_exec() {
    let bin = env!("CARGO_BIN_EXE_strace-rs");
    testlib::test_no_exec(bin);
}

#[test]
fn test_strace_basic() {
    let bin = env!("CARGO_BIN_EXE_strace-rs");
    let test_bin = "ls";
    let output = Command::new(bin)
        .arg(&test_bin)
        .output()
        .expect("Failed to run binary");

    let stderr = String::from_utf8_lossy(&output.stderr);

    let ref_output = Command::new("strace")
        .arg(&test_bin)
        .output()
        .expect("Failed to run binary");

    assert!(output.status.success());

    let ref_stderr = String::from_utf8_lossy(&ref_output.stderr);

    let extract_syscalls = |output: &str| -> Vec<String> {
        output
            .lines()
            .filter_map(|line| {
                line.split_once('(').map(|(syscall, _)| syscall.to_string())
            })
            .collect()
    };

    let syscalls = extract_syscalls(&stderr);
    let ref_syscalls = extract_syscalls(&ref_stderr);

    for (syscall, ref_syscall) in syscalls.iter().zip(ref_syscalls.iter()) {
        assert_eq!(
            syscall, ref_syscall,
            "Syscall mismatch: {} != {}",
            syscall, ref_syscall
        );
    }
}