title: How to decorate a class as untestable for Code Coverage?
body: <p><em>Background: Visual Studio 2008, C#, .Net 3.5.</em></p>
  
  <p>I have a number of utility classes that are simply not unit-testable. This is mainly because they interact with resources (e.g. databases, files etc).</p>
  
  <p>Is there a way I can decorate these classes so that the Visual Studio Code Coverage engine will ignore them, so not decreasing the code coverage percentage?</p>