insertion_procedure (int a[], int p [], int N)
{
int i,j,k;
for (i=0; i<=N; i++) p[i] = i;
for (i=2; i<=N; i++)
{
k = p[i];
j = 1;
while (a[p[j-1]] > a[k]) {p[j] = p[j-1]; j--}
p[j] = k;
}
}
I have to find cyclomatic complexity for this code and then suggest some white box test cases and black box test cases. But I am having trouble making a CFG for the code.
Would appreciate some help on test cases as well.
Start by numbering the statements:
insertion_procedure (int a[], int p [], int N)
{
(1) Int i,j,k;
(2) for ((2a)i=0; (2b)i<=N; (2c)i++)
(3) p[i] = i;
(4) for ((4a)i=2; (4b)i<=N; (4c)i++)
{
(5) k=p[i];j=1;
(6) while (a[p[j-1]] > a[k]) {
(7) p[j] = p[j-1];
(8) j--
}
(9) p[j] = k;
}
Now you can clearly see which statement executes first and which last etc. so drawing the cfg becomes simple.
Now, to calculate cyclomatic complexity you use one of three methods: