title: setting breakpoint angular cli .spec.ts code for debugging
body: <p>I'm using angular2 cli and am following the test debugging instructions here <a href="https://angular.io/guide/testing#test-debugging" rel="nofollow noreferrer">official documentation</a>. I'm able to search for the spec.ts source files which are in the app folder and set break points. However, I'm not able to do the same for the test files for components in other folder. The tests do run but I'm not able to find the source file in the chrome browser. Shall I edit some config file? I've tried to add the source files manually to the source in chrome but that doesn't help in setting the breakpoint. Any help is very much appreciated. </p>