/** * @expectedException \SxCore\Html\Exception\InvalidArgumentException */ public function testRenderChildrenFails() { $htmlElement = new HtmlElement(); $childElements = array(new HtmlElement('bacon'), new HtmlElement('foo'), new HtmlElement('bar')); $htmlElement->setChildren($childElements); $this->assertSame('', $htmlElement->renderChildren('')); $htmlElement->renderChildren('abc'); }