 as code, which means that they, too, can have bugs of their own. Having a bug in your test case can truly be a maddening experience!   A test case that produces a false negative can lead you to investigate a non-existent defect and a false positive lulls you into overlooking a lurking one. You attribute the erroneous test result to the code being tested, yet the real issue is within the test case itself. Unlike hackneyed sitcom plots, hilarity does <em>not</em> ensue from this misunderstanding.</p>

<p>For