Use custom component in tests

test/react-jsdom.js

@@ -3,6 +3,12 @@ import Window from 'window';
 import React from 'react';
 import ReactJSDOM from 'this';
 
+class TestComponent extends React.Component {
+	render() {
+		return <div>hi</div>;
+	}
+}
+
 test('ReactJSDOM is a object', t => {
 	t.is(typeof ReactJSDOM, 'object');
 });
@@ -10,20 +16,20 @@ test('ReactJSDOM is a object', t => {
 test('ReactJSDOM cleans up globals', t => {
 	global.window = 'foo';
 	global.document = 'bar';
-	ReactJSDOM.render(<div>hi</div>);
+	ReactJSDOM.render(<TestComponent/>);
 	t.is(global.window, 'foo');
 	t.is(global.document, 'bar');
 });
 
 test('ReactJSDOM renders a React Component', t => {
-	const elem = ReactJSDOM.render(<div>hi</div>);
+	const elem = ReactJSDOM.render(<TestComponent/>);
 	t.is(elem.nodeName, 'DIV');
 	t.is(elem.textContent, 'hi');
 });
 
 test('ReactJSDOM allows window instance to be passed in', t => {
 	const window = new Window();
-	const elem = ReactJSDOM.render(<div>hi</div>, window);
+	const elem = ReactJSDOM.render(<TestComponent/>, window);
 	t.is(elem, window.document.getElementById('root').children[0]);
 	t.is(elem.nodeName, 'DIV');
 	t.is(elem.textContent, 'hi');