feat: 🎸 Update alert designs (#2496)

addons/core/tests/integration/components/loading-button-test.js

@@ -7,19 +7,22 @@ import { module, test } from 'qunit';
 import { setupRenderingTest } from 'ember-qunit';
 import { render, find, click } from '@ember/test-helpers';
 import { hbs } from 'ember-cli-htmlbars';
+import { setupIntl } from 'ember-intl/test-support';
 
 module('Integration | Component | loading-button', function (hooks) {
   setupRenderingTest(hooks);
+  setupIntl(hooks, 'en-us');
+
   test('it renders', async function (assert) {
     await render(hbs`<LoadingButton />`);
-    assert.ok(find('.loading-button'));
+    assert.ok(find('.hds-button'));
   });
 
   test('it executes a function on refresh button click', async function (assert) {
     assert.expect(2);
     this.onClick = () => assert.ok(true, 'refresh was clicked');
     await render(hbs`<LoadingButton @onClick={{this.onClick}} />`);
-    assert.ok(find('.loading-button'));
+    assert.ok(find('.hds-button'));
     await click('button');
   });
 });