White Box Testing

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Data Flow <strong>Testing</strong>If ( Condition 1 ) {x = a;}Else {x = b;}If ( Condition 2 ) {y = x + 1;}Else {y = x – 1;}What test cases do we need?Definitions: 1) x = a; 2) x = b;Uses: 1) y = x + 1; 2) y = x – 1;1. (x = a, y = x + 1)2. (x = b, y = x + 1)3. (x = a, y = x – 1)4. (x = b, y = x – 1)
Data Flow <strong>Testing</strong>• Example Use data flow testing to design a set of test cases for thissubroutine.
Page 1: White Box TestingSources:Code Compl
Page 4 and 5: Complete Path Coverage• Test ALL
Page 6 and 7: Branch coverage• Similar to line
Page 8 and 9: Branch coverage• Example What tes
Page 12 and 13: Partial Condition testing• This i
Page 14 and 15: Loop Testing• Design test cases b
Page 16 and 17: Data Flow Testing• The techniques
Page 20: Relational condition testing• Tes
Page 23 and 24: Data Type Errors• Scan the code f
Page 25: Limitations of white box testing•

White Box Testing

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