TestCafe with ShadowDOM example

shadow-dom-test.js

import { Selector } from 'testcafe';

fixture `Shadow DOM Example`
    .page `https://jsfiddle.net/txyamhcj/`;

test('Type inside shadowDOM', async t => {
    const outputIframe = Selector('iframe').withAttribute('name', 'result');
    const shadowInput = Selector(() => document.querySelector('#host').shadowRoot.querySelector('#txtTest'));

    await t
        .switchToIframe(outputIframe)
        .typeText(shadowInput, 'This is Shadow Input!');
});