title: why do i have to rebuild the test project, whenever i change the code?
body: <p>I have visual studio 2010, and a unit-test project.<br>
  when i run (debug test in the current context),then stop it,and then change the code,</p>
  
  <p>i have to rebuild the project, otherwise the project will run without debugging, and it will use the old code !!!</p>
  
  <p>why is that happening ?</p>