Carl and Richard talk to Jeff Fritz about doing unit testing of WinJS in Windows 8. Jeff talks about QUnit, the JavaScript testing framework built by the JQuery folks for testing JQuery. There are some interesting challenges for JavaScript testing, especially around automation. To deal with the complexities of working with WinJS in Windows 8 Jeff has forked QUnit to create QUnit-Metro. The conversation also digs into the challenges of working in WinJS, where tablets appear to be going and the what its like hopping between two flavors of JavaScript.