public void ValidMethodOK()
 {
     //create insatance of class
     clsServiceOrder AnOrder = new clsServiceOrder();
     //boolean value to store result of validation., which is intitialised to false
     Boolean OK = false;
     //create some test data to assign to property
     string SomeService = "CPU Repair";
     //invoke the methoid
     OK = AnOrder.Valid(SomeService);
     //test to see if result is ok
     Assert.IsTrue(OK);
 }
 public void ServiceExtremeMax()
 {
     //create insatance of class
     clsServiceOrder AnOrder = new clsServiceOrder();
     //boolean value to store result of validation., which is intitialised to false
     Boolean OK = false;
     //create some test data to assign to property
     string SomeService = "";
     //pad the data with characters.PadRight is a built in method that allows us to pad out an existing string with a set number of a specific character.
     SomeService = SomeService.PadRight(129, 'a');
     //invoke the methoid
     OK = AnOrder.Valid(SomeService);
     //test to see if result is ok
     Assert.IsFalse(OK);
 }
 public void ServiceMaxPlusOne()
 {
     //create insatance of class
     clsServiceOrder AnOrder = new clsServiceOrder();
     //boolean value to store result of validation., which is intitialised to false
     Boolean OK = false;
     //create some test data to assign to property
     string SomeService = "abcdefghijklmnopqrstu";
     //invoke the methoid
     OK = AnOrder.Valid(SomeService);
     //test to see if result is ok
     Assert.IsFalse(OK);
 }