public void LessThenConstraintFalse()
 {
     IConstraint sut = new LessThanConstraint(10);
     Assert.IsFalse(sut.Validate(10));
 }
 public void LessThenConstraint()
 {
     IConstraint sut = new LessThanConstraint(10);
     Assert.IsTrue(sut.Validate(9));
 }