for helpers, as it more
closely simulates the lifecycle of a helper than in isolation.</p>
<p>We're going to demonstrate how to test helpers by testing the <code>format-currency</code>
helper from <a href="../../templates/writing-helpers/">Writing Helpers</a>.</p>
<blockquote>
  <p>You can follow along by generating your own helper with <code>ember generate helper
format-currency</code>.</p>
</blockquote>
<div class="filename javascript"><div class="ribbon"></div><span>app/helpers/format-currency.js</span><