Restore timeout stub before test

tests/core/unit/registerCustomElement.ts

@@ -9,7 +9,6 @@ import { v, w } from '../../../src/core/vdom';
 import register, { create, CustomElementChildType } from '../../../src/core/registerCustomElement';
 import { createResolvers } from '../support/util';
 import { ThemedMixin, theme } from '../../../src/core/mixins/Themed';
-import { waitFor } from './waitFor';
 
 const { describe, it, beforeEach, afterEach, before } = intern.getInterface('bdd');
 const { assert } = intern.getPlugin('chai');
@@ -373,7 +372,8 @@ describe('registerCustomElement', () => {
 		assert.equal(display, 'block');
 	});
 
-	it('handles children being appended as document is still loading', async () => {
+	it('handles children being appended as document is still loading', () => {
+		resolvers.restore();
 		register(DelayedChildrenWidget);
 
 		Object.defineProperty(document, 'readyState', {
@@ -397,10 +397,17 @@ describe('registerCustomElement', () => {
 		child = document.createTextNode('bar');
 		element!.appendChild(child);
 
-		waitFor(
-			() =>
-				element!.outerHTML ===
-				'<delayed-children-element style="display: block;"><div><div data-key="child-0">foo</div><div data-key="child-1">bar</div></div></delayed-children-element>'
-		);
+		return new Promise((resolve, reject) => {
+			setTimeout(() => {
+				if (
+					element!.outerHTML !==
+					'<delayed-children-element style="display: block;"><div><div data-key="child-0">foo</div><div data-key="child-1">bar</div></div></delayed-children-element>'
+				) {
+					reject(`${element!.outerHTML}\n That shit aint right`);
+				}
+
+				resolve();
+			});
+		});
 	});
 });