JaCoCo ant code coverage

Question

How do you fix this??

For the following line in my program JaCoCo shows: "1 of 2 branches missed"

if(ia.length() < i+1){

Also for the following line i get: "1 of 4 branches missed"

if(ia.length() <= i+1 && ib.length() <= i+1){

the whole code:

public static int convertBits(int a, int b) {
      String ia = Integer.toBinaryString(a);
      String ib = Integer.toBinaryString(b);
      int s = 0;
      for(int i = 0;;i++){
        char a1 = '0';
        char a2 = '0';

        if(ia.length() < i+1){
          a1 = '0';
        }else{
          a1 = ia.charAt(ia.length() - i - 1);
          }
        if(ib.length() < i+1){
          a2 = '0';
        }else{
          a2 = ib.charAt(ib.length() - i - 1);
          }
        if(a1 != a2){
          s++;
        }
        if(ia.length() <= i+1 && ib.length() <= i+1){
          break;
        }
      }

@ArtsArts and where is the test code against the above code? — Naman
– Naman, Commented Feb 26, 2017 at 7:17

Godin · Accepted Answer · 2017-02-26 02:15:39Z

2

JaCoCo is a code coverage tool that generates coverage report of your code after its execution. Could be after manual execution, but typically after execution of tests, thus doing assistance in their creation.

Condition if (ia.length() < i + 1) { has two branches:

ia.length() < i + 1 == false
ia.length() < i + 1 == true

So

1 out of 2 branches

means that one of those branches was executed, while another was not.

answered Feb 26, 2017 at 2:15

Godin

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