title: Reference Microsoft.VisualStudio.QualityTools.UnitTestFramework for CI build
body: <p>I have created a C# test project in VS2015 RC. it builds locally but when i attempt to build on our CI build server (TeamCity) it fails with errors:</p>
  
  <blockquote>
    <p>UnitTest1.cs(2,17): error CS0234: The type or namespace name
    'VisualStudio' does not exist in the namespace 'Microsoft' (are you
    missing an assembly reference?)
    [... .Tests.csproj]
    UnitTest1.cs(9,10): error CS0246: The type or namespace name
    'TestMethod' could not be found (are you missing a using directive or
    an assembly reference?)
    [... .Tests.csproj]</p>
  </blockquote>
  
  <p>Clearly this is because the assembly containing these namespaces (<code>Microsoft.VisualStudio.QualityTools.UnitTestFramework</code>) is not on the build server; on my local machine it resides at <code>C:\Program Files (x86)\Microsoft Visual Studio 12.0\Common7\IDE\PublicAssemblies\Microsoft.VisualStudio.QualityTools.UnitTestFramework.dll</code>.</p>
  
  <p>I could copy the assembly into my solution so that it becomes part of the codebase but manually moving files feels like a bit of an inelegant hack. I searched around on nuget and found <a href="http://www.nuget.org/packages/Microsoft.VisualStudio.QualityTools.UnitTestFramework/" rel="noreferrer">http://www.nuget.org/packages/Microsoft.VisualStudio.QualityTools.UnitTestFramework/</a> which I figured would do the trick, but installing that package failed with:</p>
  
  <blockquote>
    <p>Install-Package : Could not install package
    'Microsoft.VisualStudio.QualityTools.UnitTestFramework 11.0.50727.1'.
    You are trying to install this package into a project that targets
    '.NETFramework, Version=v4.5.2', but the  package does not contain any
    assembly references or content files that are compatible with that
    framework</p>
  </blockquote>
  
  <p>What's my best option of solving this? I'm surprised that creating a test project in VS2015 does not automatically include all the dependencies that I need, though perhaps I'm being naive (I'm something of a fledgling dot netter).</p>