public static function setUpBeforeClass()
 {
     // setup static configuration resource path for test purposes
     RootClassLoader::addLoader(new StandardClassLoader(self::TEST_VENDOR, __DIR__ . '/test-config'));
     // setup configuration provider for this test (remember previous one)
     self::$originalProvider = ConfigurationManager::retrieveProvider('ini');
     $provider = new IniConfigurationProvider();
     $provider->setOmitContext(true);
     $provider->setOmitConfigSubFolder(true);
     ConfigurationManager::registerProvider('ini', $provider);
 }