<p>The value of unit tests and TDD are well documented. Unfortunately, it’s still
daunting to start practicing it. Here’s a primer.</p>

<h2 id="our-desired-code">Our desired code</h2>

<p>We need to write a method that:</p>

<ul>
<li>takes a string as an argument</li>
<li>reverses the string</li>
<li>saves the string…</li>
</ul>

Read more at the source