1. We introduced the Unit Testing, Integration Testing and System Testing, please do a detail description for each testing stage, what is the main purpose of each testing, what kinds of strategies can be used to each testing, and also explain the relationship among the three testing. (20 points)

2. The Following is the source code that will need to do the mutation testing, how many mutants can be given to this source code, and list each mutants and explain why you did this kinds of mutants? (10 points)

Public Function isLeap(year) As Boolean Dim year As Integer Dim c1, c2, c3 As Boolean 1. c1 = (year % 4 == 0) 2. c2 = (year % 100 == 0) 3. c3 = (year % 400= = 0) 4. isLeap = False 5. If ( (c1 AND NOT(c2)) OR (c3)) Then 6. IsLeap = True 7. EndIf 8. End Function

3. Why do we do the software testing?The following picture is about the software testing cost at each stages for three different kinds of defects, please explain this graph. (10 points)

4. We have introduced the error, fault, and failure, please explain the relationship among this three terminology, and write a source code to mark where is the error happened, how the fault appear, and what is the failure caused , and also explain it. (10 points)

5. When do we stop to do testing? What is the stop reasons? (10 points)

6. What is the advantages and disadvantages of Test driven testing and model based testing? (10 points)

7. Why do we need to do software configuration management, and what is the key properties that SCM have? (10 points)

8. We introduced boundary value testing, equivalence class testing, path testing, what is the different between these different testing techniques, and what kinds of criterial you will use to help you decide which testing technique is the best choice for a special system? (10 points)

9. What is object orient testing, why it is so important, and what is the difference with the structured testing methods? (10 points)

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