title: No xunit tests discovered by vstest.console.exe
body: <p>I'm putting together a new stack of unit tests to be run together as a CI job. I'm using vstest.console.exe instead of mstest.exe mainly for its ability to run tests from several frameworks, but right now the focus is a few xUnit dlls. The jobs are run as part of a Jenkins pipeline.</p>
  
  <p>I have tested everything successfully on a couple of dev boxes, but annoyingly test discovery is not working on any of the CI build boxes so far. This is after the addition of the 0.99.8 xUnit test adapter vsix (also tested with 0.99.7). The xUnit dlls are being built against 4.5 with the 2.0.0.2378 beta nuget version of xUnit.</p>
  
  <p>I have reproduced the symptoms with the simplest possible dll, with a single public test method, working fine on my own box, not working on any build boxes. The deployment enviroment is pretty straight forward, with a VS2012 install and the xUnit test adapter, on Windows 2012.</p>
  
  <p>I have enabled the TpTrace logging via the vstest exe config files and everything looks fine. I guess I'm looking for a way to troubleshoot the issue further (maybe tracing for the xUnit discovery process) or a workaround the problem. I'd prefer to retain the use of vstest console for the simplicity of running several frameworks.</p>
  
  <p>I have written up this issue via the <a href="https://xunit.codeplex.com/workitem/9936" rel="noreferrer">xUnit codeplex</a> site as well.</p>
  
  <p>I've checked out this <a href="https://stackoverflow.com/a/21033204/2658793">SO post</a> but none of the suggested solutions make sense here.</p>