Method addRoute

tests/server.ts:62–70

(
    path: string,
    handler: (req: IncomingMessage, res: ServerResponse) => void,
  )

  }

  addRoute(
    path: string,
    handler: (req: IncomingMessage, res: ServerResponse) => void,
  ) {
    if (this.#routes[path]) {
      throw new Error(`Route ${path} was already setup.`);
    }
    this.#routes[path] = handler;
  }

  #handle(req: IncomingMessage, res: ServerResponse) {
    const url = req.url ?? '';