Black box testing

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Test of Object-oriented Programs - slide 14 : 35

Black box testing

Black box testing uses the interface of a program unit to derive test cases

The aim of black box testing is to demonstrate that the program unit produces correct output on suitable input - relative to the functional requirements

Contrast to white box testing

Wish list of black box testing
- Locate functional errors
  - Do we get the expected result on given inputs to a method?
- Locate interface errors
  - Are data passed correctly to and from methods?
- Locate efficiency errors
  - Is the method fast enough?