title: Cannot find name 'async' when testing Angular 11 with jest
body: <p>I'm trying to write Angular test using jest :</p>
  <pre><code>beforeEach(async(() =&gt; {
      TestBed.configureTestingModule({
        declarations: [BookListComponent],
      }).compileComponents();
    }));
  </code></pre>
  <p>When i launched :</p>
  <pre><code>npm run test:watch 
  </code></pre>
  <p>I got this error :</p>
  <blockquote>
  <p>error TS2304: C
  annot find name 'async'.</p>
  </blockquote>