title: Run Jest tests only for current folder
body: <p>I have Jest installed on my machine and typing <code>jest</code> from terminal results in tests from parent folers also getting executed. I want to run tests only from the current folder.  </p>
  
  <p>For e.g. if I go to <code>c:/dev/app</code> in terminal and type <code>some-jest-command</code>, it should only run files with <code>.test.js</code> present in the <code>app</code> folder. Currently, running <code>jest</code> command from <code>app</code> folder runs tests in parent folders too, which is not my desired behaviour.</p>