Function patchConsoleError

test/wdio/prerender-test/cmp.test.tsx:42–54

* This monkey-patches `window.console.error` in order to fail a test if that * function is called within a test. * * @returns a teardown function which ondoes the monkey-patch

()

 * @returns a teardown function which ondoes the monkey-patch
 */
function patchConsoleError() {
  const orgConsoleError = window.console.error;

  window.console.error = function (...args: any[]) {
    orgConsoleError.apply(window, args);
    window.console.info('console.error', args);
    throw new Error('console.error was called, this is not allowed in a unit test run');
  };

  return () => {
    window.console.error = orgConsoleError;
  };
}

describe('prerender', () => {
  let iframe: HTMLElement;