Not sure if junior dev is lying or just really bad at using the search function. He made sweeping changes in code he inherited from me and failed to find all the jQuery selectors that broke because of it. And he didn't think of clicking on all the other buttons on the page to check they are still doing their thing. Of course claiming that there is no time for testing when I pointed out his mistake. Wish he'd stop being such a bad, this is not the first time this has happened!