#import "modules/std.sx";
#import "modules/std/process.sx";

// process.sx smoke test: run + env + find_executable, with
// success-path and failure-path coverage.
//
// The PATH-startswith check is stable across machines (PATH always
// begins with an absolute path); `ls` is guaranteed in /bin on every
// POSIX host this targets.

main :: () {
    if r := run("echo hello world") {
        print("exit={}, stdout={}", r.exit_code, r.stdout);
    } else {
        print("FAIL run echo\n");
        return;
    }

    if r := run("false") {
        if r.exit_code == 0 { print("FAIL: false should not exit 0\n"); return; }
        print("false exit={}\n", r.exit_code);
    }

    if n := env("SX_DEFINITELY_UNSET_VAR") {
        print("FAIL: unset var returned: {}\n", n);
        return;
    }
    print("unset var: null (ok)\n");

    if w := find_executable("ls") {
        // /bin/ls on macOS, /usr/bin/ls on Linux. Either is fine —
        // we only assert the result is non-empty and absolute.
        if w.len < 2 { print("FAIL: ls path too short\n"); return; }
        if w[0] != 47 { print("FAIL: ls path not absolute\n"); return; }
        print("ls is absolute (ok)\n");
    } else {
        print("FAIL find ls\n"); return;
    }

    if w := find_executable("sx_definitely_no_such_command_12345") {
        print("FAIL: bogus exec returned: {}\n", w);
        return;
    }
    print("missing exec: null (ok)\n");

    print("ok\n");
}