How to apply "for each" loop coverage testing?

Question

I was wondering if "for" loop coverage can be applied to "for each" loops as well.. If so, how can it be done on the following code sample?

1. public static void foreachDisplay(int[] data){
  2. System.out.println("Display an array using for 
  3. each loop");
  4. for (int a  : data) {
    5. System.out.print(a+ " ");
    6. }
  7. }

Thank you.

Why don't you show how easy it is to be tested using the for loop coverage and share your knowledge? :) — Engineering Mind, Apr 01 '16 at 01:22
I don't know enough about what you are trying to do. Are you trying to get line 5 to show up as being covered? — Vaughn Cato, Apr 01 '16 at 01:24
I need to write test cases that covers the testing possibilities of this "for each" loop and I know how to do it if it was a normal "for" loop but can't imagine it in this case. — Engineering Mind, Apr 01 '16 at 02:19
I will apply the loop coverage by selecting values that will cause the loop to run once or twice and I may test the function response to boundary values for ex. — Engineering Mind, Apr 01 '16 at 02:28
or maybe if the loop ends at n, I will try to enter a value that will cause n-1,n or n+1 iterations — Engineering Mind, Apr 01 '16 at 02:29
If you want the loop to run once, you can provide a data array with one element. — Vaughn Cato, Apr 01 '16 at 02:30
Aha ok so since I don't know the exact number of list inputs, I will have to assume a value and work based on it.. I guess I got it ^_^' thank you so much :) — Engineering Mind, Apr 01 '16 at 02:34

score 0 · Answer 1 · answered Apr 04 '16 at 22:10

0

You should test this at least twice, once with an empty array and the second with a few elements in the array. You could also test it with exactly 1 element in the array, if you want to count that as the boundary value.

answered Apr 04 '16 at 22:10

user1054999

111
3

How to apply "for each" loop coverage testing?

1 Answers1