title: How to check if VSTest-Engine only runs one single Test (C# Unittesting)
body: <p>we need to determinate, if a <strong>single</strong> unit test or a <strong>whole solution/project</strong> is called in visual studio per rightclick -> "Run Unit Tests" (per Resharper).</p>
  
  <p>We need this to execute different preperations.
  We already tried to differ in "TestContext.TestName", the Process-Start Parameters and even looked in the callstack but we found no-where an useful information. </p>
  
  <p>Thank you for any kind of help.</p>