number of executed statements
-------------------------------
  total number of statements

print_sum(int a, int b) {
  int result = a + b;

  if (result > 0) {
    println("%s", "red");
  } else if (result < 0) {
    println("%s", "blue");
  }
}

• Input: a = 3, b = 9

• Coverage: 7 / 9 = 77.8%

✅ print_sum(int a, int b) {
✅   int result = a + b;
✅
✅   if (result > 0) {
✅     println("%s", "red");
❌   } else if (result < 0) {
❌     println("%s", "blue");
✅   }
✅ }

• Input: a = -5, b = -8

• Coverage: 8 / 9 = 88.9%

✅ print_sum(int a, int b) {
✅   int result = a + b;
✅
✅   if (result > 0) {
❌     println("%s", "red");
✅   } else if (result < 0) {
✅     println("%s", "blue");
✅   }
✅ }