title: NUnit vs. xUnit
body: <p>What are the differences between <a href="http://www.nunit.org/" rel="noreferrer">NUnit</a> and <a href="https://xunit.net/" rel="noreferrer">xUnit.net</a>?
  What's the point of developing two of them, not only one?</p>
  <p>I've read that xUnit is being developed by inventor of NUnit:</p>
  <blockquote>
  <p>xUnit.net is a unit testing tool for the .NET Framework. <strong>Written by</strong>
  the original <strong>inventor of NUnit</strong></p>
  </blockquote>
  <p>On the other hand:</p>
  <blockquote>
  <p>NUnit is a unit-testing framework for all .Net languages .. the
  current production release, version 2.6, is the seventh major release
  of this <strong>xUnit based unit testing tool</strong></p>
  </blockquote>
  <p>So where is the truth?</p>