Question 3

Consider the following method.

1 int computeVal(int x, int y) {

2 z = 0;

3 if (x > y) {

4 if (y > 5) {

5 z = x;

6 } else {

7 z = y;

8 }

9 }

10 if ((z == 4) || (z < 0)) {

11 z = z * x;

12 }

13 if (x <= y) {

14 z = z + 1;

15 } else {

16 z = z 1;

17 }

18 return z;

19 }

Question

i) Provide a simplified flowchart for method computeVal annotated with data flow actions (4 marks)

ii) Provide a minimum number of test cases such that 100% instruction coverage of method computeVal is achieved. (4 marks).

iii) Provide a minimum number of test cases that satisfy the minimum loop coverage of method computeVal. You can re-use test cases from ii) by referring to them. (4 marks).