High Quality Content by WIKIPEDIA articles! ATF or Automated Testing Framework is a testing framework originally created for NetBSD as a Google Summer of Code project in 2007.. Automated Testing Framework is also used in many mobile phone companies to test latest applications or updated OS. ATF is a very useful tool which does many basic and time-consuming works such as clicking and switching applications repeatedly for developers. In addition, daily regression test will increase the chance to catch bugs before the release of new features.