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SOFTWARE QUALITY ASSURANCE WHITE BOX Seminar: Oana FEIDI Quality Manager – Continental Automotive
White Box (Structural Testing) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
White Box ,[object Object],[object Object],[object Object],[object Object],[object Object]
Statement testing ,[object Object],[object Object],An entity in a programming language which is typically the smallest indivisible unit of execution. ,[object Object],[object Object],[object Object],[object Object],[object Object],Test completeness criteria : the percentage of the statements in the software which were executed at least at once (executing a statement means that the statement was encountered and evaluated during testing).
Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],statement
Branch/Decision Testing ,[object Object],[object Object],an executable statement which may transfer control to another statement, depending upon the logic of the decision statement ,[object Object],[object Object],[object Object],[object Object],Test completeness criteria : achievement of the test coverage – 100% of the branches (one true and one false for each part of condition)
Example ,[object Object],[object Object],if A and (B or C) Case A B C Output 1 0 1 1 0 2 1 0 0 0
Branch Condition Combination ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example Start if a & (b or c) End true false A = true, false B = true, false C = true, false Exercise !!! Case A B C Outcome
White Box - summary ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Can we discover the mistake? What happens if we have: IF(A AND (B AND C)) instead of IF (A AND (B OR C)) Exercise : Verify if using Branch/Decision testing and Branch Condition Combination testing we can discover the mistake.
Modified Condition Combination Testing ,[object Object],[object Object],[object Object],[object Object],[object Object]
Modified Condition Combination Testing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example if (A and (B or C)) Case A B B or C C Outcome 1 1 1 1 0 1 2 0 0 3 1 1 1 0 1 4 0 0 0 5 1 0 1 1 1 6 0 0 0
Loop Testing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Whitebox

  • 1. SOFTWARE QUALITY ASSURANCE WHITE BOX Seminar: Oana FEIDI Quality Manager – Continental Automotive
  • 2.
  • 3.
  • 4.
  • 5.
  • 6.
  • 7.
  • 8.
  • 9. Example Start if a & (b or c) End true false A = true, false B = true, false C = true, false Exercise !!! Case A B C Outcome
  • 10.
  • 11. Can we discover the mistake? What happens if we have: IF(A AND (B AND C)) instead of IF (A AND (B OR C)) Exercise : Verify if using Branch/Decision testing and Branch Condition Combination testing we can discover the mistake.
  • 12.
  • 13.
  • 14. Example if (A and (B or C)) Case A B B or C C Outcome 1 1 1 1 0 1 2 0 0 3 1 1 1 0 1 4 0 0 0 5 1 0 1 1 1 6 0 0 0
  • 15.