Software Engineering · Question 22 · Medium
What is the minimum number of test cases needed for 100% branch (decision) coverage of this code?
if (a > 0)
x = x + 1;
if (b > 0)
y = y + 1;- 2
- 1
- 3
- 4
Answer and explanation
Answer: A. 2
Explanation: Each if needs a true outcome and a false outcome. One test with a > 0 and b > 0 covers both true branches, and one test with a <= 0 and b <= 0 covers both false branches. A single test cannot do both.
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