Method dispatchCustomEventForTesting

src/custom-element.js:1411–1416

* Dispatches a custom event only in testing environment. * * @param {string} name * @param {!Object=} opt_data Event data. * @final

(name, opt_data)

     * @final
     */
    dispatchCustomEventForTesting(name, opt_data) {
      if (!getMode().test) {
        return;
      }
      dom.dispatchCustomEvent(this, name, opt_data);
    }

    /**
     * Whether the element can pre-render.