public function testAddAdditionalFieldsToResponseFrontend()
{
$directpostRequest = $this->getMock('Magento\\Authorizenet\\Model\\Directpost\\Request', array());
$order = $this->getMock('Magento\\Sales\\Model\\Order', array(), array(), '', false);
$methodInstance = $this->getMock('Magento\\Authorizenet\\Model\\Directpost', array(), array(), '', false);
$methodInstance->expects($this->once())->method('generateRequestFromOrder')->with($this->identicalTo($order))->will($this->returnValue($directpostRequest));
$payment = $this->getMock('Magento\\Sales\\Model\\Order\\Payment', array('getMethodInstance', '__wakeup'), array(), '', false);
$payment->expects($this->once())->method('getMethodInstance')->will($this->returnValue($methodInstance));
$payment->setMethod('authorizenet_directpost');
$order->expects($this->once())->method('getId')->will($this->returnValue(1));
$order->expects($this->atLeastOnce())->method('getPayment')->will($this->returnValue($payment));
$this->coreRegistry->expects($this->once())->method('registry')->with('directpost_order')->will($this->returnValue($order));
$request = new \Magento\Framework\Object();
$response = $this->getMock('Magento\\Framework\\App\\Response\\Http', array(), array(), '', false);
$controller = $this->getMock('Magento\\Checkout\\Controller\\Action', array('getRequest', 'getResponse'), array(), '', false);
$controller->expects($this->once())->method('getRequest')->will($this->returnValue($request));
$controller->expects($this->once())->method('getResponse')->will($this->returnValue($response));
$observer = new \Magento\Framework\Event\Observer(array('event' => new \Magento\Framework\Object(array('controller_action' => $controller))));
$this->coreData->expects($this->once())->method('jsonEncode')->with(self::logicalNot(self::isEmpty()))->will($this->returnValue('encoded response'));
$response->expects($this->once())->method('clearHeader')->with('Location');
$response->expects($this->once())->method('representJson')->with('encoded response');
$this->model->addAdditionalFieldsToResponseFrontend($observer);
}
