Function createShadowRoot

packages/dev/test-utils/src/shadowDOM.ts:19–25

(attachTo: HTMLElement = document.body)

}

export function createShadowRoot(attachTo: HTMLElement = document.body): ShadowRootReturnValue {
  const div = document.createElement('div');
  div.setAttribute('data-testid', 'shadow-root');
  attachTo.appendChild(div);
  const shadowRoot = div.attachShadow({mode: 'open'});
  return {shadowHost: div, shadowRoot, cleanup: () => attachTo.removeChild(div)};
}