Method throwException

packages/socket.io/test/support/expectjs.d.ts:27–27

* Assert that the function throws. * * @param fn callback to match error string against

(fn?: (exception: any) => void)

     * @param fn callback to match error string against
     */
    throwException(fn?: (exception: any) => void): void;

    /**
     * Assert that the function throws.