de>$ expresso --include lib test/*
</code></pre>

<p>The previous example is typically what I would recommend, since expresso
supports test coverage via <a href="http://github.com/visionmedia/node-jscoverage">node-jscoverage</a> (bundled with expresso),
so you will need to expose an instrumented version of you library.</p>

<p>To instrument your library, simply run <a href="http://github.com/visionmedia/node-jscoverage">node-jscoverage</a>,
passing the <em>src</em> and <em>dest</em> directories:</p>

<pre><