/** * @covers ByJG\Util\XmlUtil::addAttribute */ public function testAddAttribute() { $dom = XmlUtil::createXmlDocumentFromStr('<root><subject>Text</subject></root>'); $node = XmlUtil::selectSingleNode($dom->documentElement, 'subject'); XmlUtil::addAttribute($node, 'attr', 'value'); $this->assertEquals(self::XMLHEADER . "\n" . '<root>' . '<subject attr="value">' . 'Text' . '</subject>' . '</root>' . "\n", $dom->saveXML()); }