public void Calc4_Start3End0Incr3()
 {
     Assert.AreEqual("3 ", Ex3aLoops.Calc4("3", "0", "3"));
 }
 public void Calc4_Start4End20Incr5()
 {
     Assert.AreEqual("4 9 14 19 ", Ex3aLoops.Calc4("4", "20", "5"));
 }
 public void Calc4_InvalidEnd()
 {
     Assert.AreEqual("Invalid input", Ex3aLoops.Calc4("3", "", "3"));
 }
 public void Calc4_IncrementLE0()
 {
     Assert.AreEqual("Invalid input", Ex3aLoops.Calc4("3", "10", "0"));
 }
 public void Calc4_InvalidStart()
 {
     Assert.AreEqual("Invalid input", Ex3aLoops.Calc4("", "10", "3"));
 }