title: How to open a specific folder when debugging VS Code extension?
body: <p>I've developed an extension that reads a directory's <code>package.json</code> file. For the extension to work, you must be inside of a JavaScript file. I'm attempting to test this extension by using a test directory inside of the extension's <code>src</code> directory that houses a <code>package.json</code> file and an <code>index.js</code> file. </p>
  
  <p>My goal is to allow the test to open the directory, open the <code>index.js</code> file and the run the tests there. This way the test directory goes anywhere the extension goes and the tests are predictable based on the <code>package.json</code> file I put into place.</p>
  
  <p>How do I get the tests to open that test directory and run the tests from that specific <code>index.js</code> file?</p>