public string SaveTest(Test aTest)
 {
     if (aTestGateway.CheckTest(aTest))
     {
         return("Test Name is already saved !");
     }
     else
     {
         int rowAffected = aTestGateway.SaveTest(aTest);
         if (rowAffected > 0)
         {
             return("Test Saved :)");
         }
         else
         {
             return("Test Name save failed !");
         }
     }
 }