/**
  * Sets up the fixture.
  * This method is called before a test is executed.
  *
  * @access protected
  */
 protected function setUp()
 {
     Sales_Config::getInstance()->set(Sales_Config::CONTRACT_NUMBER_VALIDATION, 'text');
     $this->_backend = Sales_Controller_Contract::getInstance();
     $this->_backend->setNumberPrefix();
     $this->_backend->setNumberZerofill();
 }