title: Mock up is working perfectly in my machine but it is not working in server in JEST framwork
body: <p>Can somebody help me? I am wrinting unit testcase using JEST framework for nodejs. <code>It's working perfectly fine in my local machine but it's not mocking in server and my colleague machine as well.</code> I had google this issue and I found suggestion to change the o.s. I am working in windows base O.S. My colleague working in linux base o.s. I have tried to ran the unit test in my parallel linux base o.s. but it was working perfect in linux base o.s. of my machine. Please, Can anyone suggest me the solution?  </p>
  
  <p>Operating system : Windows 8.1</p>