use crank_observability::RequestId;
use uuid::Version;

#[test]
fn preserves_valid_opaque_request_id() {
    let request_id = RequestId::resolve(Some("req_test-123/abc"));

    assert_eq!(request_id.as_str(), "req_test-123/abc");
}

#[test]
fn replaces_missing_and_invalid_values_with_uuid_v7() {
    for candidate in [
        None,
        Some(""),
        Some("bad value"),
        Some(" leading"),
        Some("trailing "),
        Some("bad,value"),
        Some("bad;value"),
        Some("я"),
    ] {
        let request_id = RequestId::resolve(candidate);
        let parsed = uuid::Uuid::parse_str(request_id.as_str()).expect("generated UUID");

        assert_eq!(parsed.get_version(), Some(Version::SortRand));
    }
}

#[test]
fn rejects_values_over_the_shared_limit() {
    let oversized = "x".repeat(RequestId::MAX_LEN + 1);
    let request_id = RequestId::resolve(Some(&oversized));

    assert_ne!(request_id.as_str(), oversized);
    assert_eq!(
        uuid::Uuid::parse_str(request_id.as_str())
            .expect("generated UUID")
            .get_version(),
        Some(Version::SortRand)
    );
}