public void PartialTest(int x, int y)
 {
     Assert.AreEqual(ImportantLib.PartiallyTestedCode(x), y);
 }
 public void AddTest(double x, double y, double z)
 {
     Assert.AreEqual(ImportantLib.Add(x, y), z);
 }
 public void SubstractTest(int x, int y, int z)
 {
     Assert.AreEqual(ImportantLib.Substract(x, y), z);
 }
 public void AddTestInt(int x, int y, int z)
 {
     Assert.AreEqual(ImportantLib.Add(x, y), z);
 }