public void GivenIHaveANumerThatHasAFactorOf3And5And7_WhenIPassItToPlingPlangPlong_Static_ThenItShouldReturnPlingPlangPlong(int val)
 {
     Assert.That(PlingPlangPlong_Static.PlingPlangPlong(val), Is.EqualTo("PlingPlangPlong"));
 }
 public void GivenIHaveANumerThatDoesNotHaveAFactorOf3Or5Or7_WhenIPassItToPlingPlangPlong_Static_ThenItShouldReturnTheStringEquivalentOfTheInput(int val)
 {
     Assert.That(PlingPlangPlong_Static.PlingPlangPlong(val), Is.EqualTo(val.ToString()));
 }