public void Test()
{
Utilities.Validation.Rules.LessThan<ClassA, int> TestObject = new LessThan<ClassA, int>(x => x.ItemA, 3, "Error");
ClassA Temp = new ClassA();
Temp.ItemA = 2;
Assert.DoesNotThrow(() => TestObject.Validate(Temp));
Temp.ItemA = 3;
Assert.Throws<NotValid>(() => TestObject.Validate(Temp));
}