o DOM changes</strong>. You use <code>data-test-*</code> attributes to mark the elements that will be used in your tests. The addon works with QUnit DOM and helpers from <a href="https://github.com/emberjs/ember-test-helpers/">@ember/test-helpers</a>. It also removes the <code>data-test-*</code> attributes in the production build.</p>
<p>Consider the example of a button component again. This time, our component can display a Material icon in addition to the label.</p>
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