The slide quote from the book "A practitioner's guide in softwire design"

1. The introduction of test
pattern making

2. Reference
• The content is quoted from
“A priactitioner’s Guide to Software design”.
• If you need further information,
please reference it.

3. Outline
• Black box testing technique
• Equivalence class testing
• Boundary value testing
• Decision table testing
• Pairwise testing
• State transition testing
• Use case testing
• White box testing techniques
• Control flow testing
• Data flow testing
• The testing paradigm
• The process of designing testing

4. What is the benefit of testing
• Automated testing is always faster than manual testing.
• You can perform regression test by little cost.

5. Black box testing and white box testing(Type)
• Black box testing
• Only test the input and output
• User-perspective testing
• White box testing
• Test the code flow and logic
• Programmer-perspective testing

6. Black box testing – Equivalence class testing
• Given a sample program. How many test case should we make?

7. Design by contract and Testing by contract
• Contract
• defines pre-condition and post-condition
• Post-condition
• defines what a module promises to do
• Pre-condition
• defines what the module requires to reach post-condition
• Testing by contract
• Only test the situations which pre-conditions are met

8. Defensive design and defensive testing
• Defensive design
• A module is designed to accept any input.
• Defensive testing
• Need to test all the conditions.

9. Black box testing – Boundary value testing
• The bugs ofter happens on boundary
• Test {BoundaryValue -1, BoundaryValue, BoundaryValue+1 }

10. Black box testing – Boundary value testing
• The bugs ofter happens on boundary
• Test {BoundaryValue -1, BoundaryValue, BoundaryValue+1 }

11. Black box testing – Decision table testing
• List every possible conditions and actions.
• Maximize coverage of conditions ,Minimize test numbers.

12. Black box testing – Decision table testing
• List every possible conditions and actions.
• Maximize coverage of conditions ,Minimize test numbers.

13. Black box testing – Pairwise testing
• 1. Identify the variables
• 2. Determine the number of each variables
• 3. Make an orthogonal array to list all the possibility
• 4. Delete unnecessary test case

14. Black box testing – Pairwise testing

15. Black box testing – State transition testing
• 1. Draw state transition graph
• 2. Test every possible path.

16. Black box testing – Use case testing
• List the use scenario and test.

18. White box testing

19. White box testing – Control flow testing

20. White box testing – Control flow testing

21. The testing paradigm

22. The process of designing testing