/**
  * 
  * Returns the given KalturaTestDataFile as DomDocument
  * @param KalturaTestDataFile $testDataFile
  */
 public static function toXml(KalturaTestCaseDataFile $testDataFile)
 {
     $dom = new DOMDocument("1.0");
     //Create elements in the Dom referencing the entire test data file
     $testCaseDataElement = $dom->createElement("TestCaseData");
     $testCaseDataElement->setAttribute("testCaseName", $testDataFile->getTestCaseName());
     $dom->appendChild($testCaseDataElement);
     //For each test procedure data
     foreach ($testDataFile->getTestProceduresData() as $testProcedureData) {
         $domTestProcedureData = KalturaTestProcedureData::toXml($testProcedureData);
         kXml::appendDomToElement($domTestProcedureData, $testCaseDataElement, $dom);
     }
     return $dom;
 }