error-checking code การใช้

• Note that i don ' t implement any error - checking code
• Assign code to regions that are hidden or exposed , depending on the detail of the view for example , you can hide error - checking code when you want to analyze just the algorithm
• A very complex sequence probably won ' t be re - used in many test scripts , so it might not be worth the labor required to generalize it , document it , and insert the error - checking code into it that you would expect of a competently written library function