duce a false positive, i.e. report that code is <code class="language-c++ highlighter-rouge"><span class="n">Correct</span></code> when it has a defect. This could be due to a buggy test case that compares to the wrong expected value, such as shown above.  Another source of false positives is when your test cases are not sufficiently robust or comprehensive to surface the problem.  If <code class="language-c++ highlighter-rouge"><span class="n">square</span><span class="p">()</span></code> returned the wron