SE450: Testing: Approaches [25/41]

Testing Approaches:

White Box - derives test cases based on the implementation of the code.

Black Box - derives test cases based on the specifications of the component alone, not considering implementation.

White Box coverage

• Statement Coverage - Every statement should be executed once
• Branch Coverage - Every branch of the program should be executed once.
• Condition Coverage - Every boolean should be evaluated to both true and false
• Combination Condition Coverage - For every boolean in the program, every combination of the truth value of the individual booleans must be evaluated.

As you can see, this is a lot easier to do at a lower (component) level than a higher (program) level.