test("hex escapes", () => {
    expect("\x55").toBe("U");
    expect("X55").toBe("X55");
    expect(`\x55`).toBe("U");
    expect(`\X55`).toBe("X55");
});

test("unicode escapes", () => {
    expect("\u26a0").toBe("⚠");
    expect(`\u26a0`).toBe("⚠");
    expect("\u{1f41e}").toBe("🐞");
    expect(`\u{1f41e}`).toBe("🐞");
});