title: Run multiple tests in one class in parallel in multiple instances of browsers using testNG
body: <p>Please tell me sample code for the fallowing scenario using Web-driver + TestNG framework.</p>
  
  <p>One class having the multiple tests. While running these tests it should run all the tests as parallel in multiple instances of same browser (Ex: Firefox) at a time. So for every test it should open a new instance of a browser.</p>