<?php
  
  namespace Sabre;
  
  class TestUtil {
  
      /**
       * This function deletes all the contents of the temporary directory.
       *
       * @return void
       */
      static function clearTempDir() {
  
          self::deleteTree(SABRE_TEMPDIR,false);
  
      }
  
  
      static private function deleteTree($path,$deleteRoot = true) {
  
          foreach(scandir($path) as $node) {
  
              if ($node=='.' || $node=='..') continue;
              $myPath = $path.'/'. $node;
              if (is_file($myPath)) {
                  unlink($myPath);
              } else {
                  self::deleteTree($myPath);
              }
  
          }
          if ($deleteRoot) {
              rmdir($path);
          }
  
      }
  
      static function getMySQLDB() {
  
          try {
              $pdo = new \PDO(SABRE_MYSQLDSN,SABRE_MYSQLUSER,SABRE_MYSQLPASS);
              $pdo->setAttribute(\PDO::ATTR_ERRMODE,\PDO::ERRMODE_EXCEPTION);
              return $pdo;
          } catch (\PDOException $e) {
              return null;
          }
  
      }
  
  
  }