public function testLayouts()
 {
     $invoker = new \Magento\Framework\App\Utility\AggregateInvoker($this);
     $invoker(function ($path) {
         $xml = simplexml_load_file($path);
         $classes = \Magento\Framework\App\Utility\Classes::collectLayoutClasses($xml);
         foreach (\Magento\Framework\App\Utility\Classes::getXmlAttributeValues($xml, '/layout//@helper', 'helper') as $class) {
             $classes[] = \Magento\Framework\App\Utility\Classes::getCallbackClass($class);
         }
         $classes = array_merge($classes, \Magento\Framework\App\Utility\Classes::getXmlAttributeValues($xml, '/layout//@module', 'module'));
         $this->_assertNonFactoryName(array_unique($classes), $path);
         $tabs = \Magento\Framework\App\Utility\Classes::getXmlNodeValues($xml, '/layout//action[@method="addTab"]/block');
         $this->_assertNonFactoryName(array_unique($tabs), $path, true);
     }, Files::init()->getLayoutFiles());
 }
 public function testLayoutFiles()
 {
     $invoker = new \Magento\Framework\App\Utility\AggregateInvoker($this);
     $invoker(function ($path) {
         $xml = simplexml_load_file($path);
         $classes = \Magento\Framework\App\Utility\Classes::getXmlNodeValues($xml, '/layout//*[contains(text(), "\\\\Block\\\\") or contains(text(),
                     "\\\\Model\\\\") or contains(text(), "\\\\Helper\\\\")]');
         foreach (\Magento\Framework\App\Utility\Classes::getXmlAttributeValues($xml, '/layout//@helper', 'helper') as $class) {
             $classes[] = \Magento\Framework\App\Utility\Classes::getCallbackClass($class);
         }
         foreach (\Magento\Framework\App\Utility\Classes::getXmlAttributeValues($xml, '/layout//@module', 'module') as $module) {
             $classes[] = str_replace('_', '\\', "{$module}_Helper_Data");
         }
         $classes = array_merge($classes, \Magento\Framework\App\Utility\Classes::collectLayoutClasses($xml));
         $this->_assertClassesExist(array_unique($classes), $path);
     }, \Magento\Framework\App\Utility\Files::init()->getLayoutFiles());
 }