 ...
    }
?&gt;</strong>
</pre>
                As many cases as needed can appear in a single file.
                They should include any code they need, such as the library
                being tested, but none of the simple test libraries.
            </p>
            <p>
                If you have extended any test cases, you can include them
                as well.
<pre>
&lt;?php
    require_once('../classes/io.php');
<strong>
    class MyFileTestCase extends UnitTestCase {
        ...
    }
    