Testing

• What do you do in testing?

  Look for errors and create test data
• What are the three types of test data?

  • Normal
  • Extreme
  • Exceptional
• Normal test data is data the program will accept
• Extreme test data is on the edge of acceptable
• Exceptional test data should not be accepted
• What are the three types of error?

  • Syntax errors
  • Logic errors
  • Execution errors
• Syntax errors are problems with the structure of language (eg spelling)
• Logic errors are where it is doing things in the wrong order
• Execution errors are when external things go wrong (eg wrong input)