use pretty_assertions::assert_eq;use super::executable_identity_from_bytes;use super::parse_codex_version;#[test]fn parses_codex_cli_version_output() {    assert_eq!(        parse_codex_version("codex 1.2.3\n").expect("version"),        "1.2.3"    );}#[test]fn rejects_malformed_codex_cli_version_output() {    assert!(parse_codex_version("codex\n").is_err());}#[test]fn executable_identity_uses_binary_contents() {    let old = executable_identity_from_bytes(b"old");    let same = executable_identity_from_bytes(b"old");    let new = executable_identity_from_bytes(b"new");    assert_eq!(old, same);    assert_ne!(old, new);}