ef="#C7_L1" id=C7_L1></a><a href="#C7_L2" id=C7_L2></a><a href="#C7_L3" id=C7_L3></a><a href="#C7_L4" id=C7_L4></a><a href="#C7_L5" id=C7_L5></a><a href="#C7_L6" id=C7_L6></a><a href="#C7_L7" id=C7_L7></a></span></code></pre>
<p>In order to test the <code>doSomething</code> method we create an instance of <code>SomeThing</code>,
update the observed property (<code>foo</code>), and assert that the expected effects are present.</p>
<pre class="language-javascript line-numbers"><code class="javascript language