title: ReferenceError: Quill is not defined while unit testing
body: <p>I got  <a href="https://github.com/primefaces/primeng/issues/807" rel="nofollow noreferrer">this same issue</a> and i resolved it and working perfectly when i run the application. </p>
  
  <p>But same issue am getting right now while run the unit test. am using karma and jasmine tool. </p>
  
  <p>I have tried include quill.js file in karma.config.js fill as well. </p>
  
  <pre><code>  files: ['./node_modules/quill/quill.js',
            { pattern: './src/test.ts', watched: true }
          ],
  </code></pre>
  
  <p>but still am facing the same issue. </p>
  
  <p>Any idea to resolve this issue?</p>