t exercise that helper in isolation. Adding these tests allows you to confirm the correctness of the helper before moving on.</p>

<p>The final step in your testing strategy will be end-to-end tests to confirm the top-level sort functionality. We have provided an example <code class="language-c++ highlighter-rouge"><span class="n">STUDENT_TEST</span></code> "skeleton" that you may want to use as a template for your student tests.</p>

<p>Here is a non-exhaustive list of suggested test cases to consider when