public function test_getDirectoryForEntityId()
 {
     $result = EngineBlock_AttributeManipulator_FileMock::_getDirectoryNameForEntityId('https://s1304.pixsoftware.de');
     $this->assertEquals('https___s1304.pixsoftware.de', $result, 'Allowed: numbers and dots');
     $result = EngineBlock_AttributeManipulator_FileMock::_getDirectoryNameForEntityId('https://');
     $this->assertEquals('https___', $result, "Convert https:// to https___");
     $result = EngineBlock_AttributeManipulator_FileMock::_getDirectoryNameForEntityId('SURFnet%20BV');
     $this->assertEquals('SURFnet_20BV', $result, "Convert % (from a URL encoding) to an _");
 }