title: MSTest inside a Console Application
body: <p>I was trying to get some tests running inside a console application</p>
  
  <pre><code>using System;
  using System.Collections.Generic;
  using System.Linq;
  using System.Text;
  using Microsoft.VisualStudio.TestTools.UnitTesting; // this doesn't work
  </code></pre>
  
  <p>The error I'm getting is:</p>
  
  <p>The type or namespace name 'VisualStudio' does not exist in the namespace 'Microsoft' (are you missing an assembly reference?)  </p>
  
  <p>Yet it all works in a seperate test project:
  <img src="https://i.stack.imgur.com/nKETo.png" alt="alt text"></p>
  
  <p><strong>Question:</strong>  What is different?</p>