title: What is the best testing framework to use with Node.js?
body: <p>I have looked at the rather long list of testing frameworks at <a href="https://github.com/ry/node/wiki/modules#testing">https://github.com/ry/node/wiki/modules#testing</a>. What is the experience with these frameworks?</p>
  
  <p>Obviously the ability to run in the browser would be a big bonus, but I'm mainly interested in Node.js. Something with a heavily asynchronous slant would be great.</p>