TransactionSaleTest.php

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<?php
namespace Magento\Braintree\Test\Unit\Gateway\Http\Client;

use Magento\Braintree\Gateway\Http\Client\TransactionSale;
use Magento\Braintree\Model\Adapter\BraintreeAdapter;
use Magento\Braintree\Model\Adapter\BraintreeAdapterFactory;
use Magento\Payment\Gateway\Http\TransferInterface;
use Magento\Payment\Model\Method\Logger;
use PHPUnit_Framework_MockObject_MockObject as MockObject;
use Psr\Log\LoggerInterface;

class TransactionSaleTest extends \PHPUnit\Framework\TestCase
{
    private $model;

    private $loggerMock;

    private $adapterMock;

    protected function setUp()
    {
        $criticalLoggerMock = $this->getMockForAbstractClass(LoggerInterface::class);
        $this->loggerMock = $this->getMockBuilder(Logger::class)
            ->disableOriginalConstructor()
            ->getMock();
        $this->adapterMock = $this->getMockBuilder(BraintreeAdapter::class)
            ->disableOriginalConstructor()
            ->getMock();
        $adapterFactoryMock = $this->getMockBuilder(BraintreeAdapterFactory::class)
            ->disableOriginalConstructor()
            ->getMock();
        $adapterFactoryMock->expects(self::once())
            ->method('create')
            ->willReturn($this->adapterMock);

        $this->model = new TransactionSale($criticalLoggerMock, $this->loggerMock, $adapterFactoryMock);
    }

    public function testPlaceRequestException()
    {
        $this->loggerMock->expects($this->once())
            ->method('debug')
            ->with(
                [
                    'request' => $this->getTransferData(),
                    'client' => TransactionSale::class,
                    'response' => []
                ]
            );

        $this->adapterMock->expects($this->once())
            ->method('sale')
            ->willThrowException(new \Exception('Test messages'));

        $transferObjectMock = $this->getTransferObjectMock();

        $this->model->placeRequest($transferObjectMock);
    }

    public function testPlaceRequestSuccess()
    {
        $response = $this->getResponseObject();
        $this->adapterMock->expects($this->once())
            ->method('sale')
            ->with($this->getTransferData())
            ->willReturn($response);

        $this->loggerMock->expects($this->once())
            ->method('debug')
            ->with(
                [
                    'request' => $this->getTransferData(),
                    'client' => TransactionSale::class,
                    'response' => ['success' => 1]
                ]
            );

        $actualResult = $this->model->placeRequest($this->getTransferObjectMock());

        $this->assertTrue(is_object($actualResult['object']));
        $this->assertEquals(['object' => $response], $actualResult);
    }

    private function getTransferObjectMock()
    {
        $transferObjectMock = $this->createMock(TransferInterface::class);
        $transferObjectMock->expects($this->once())
            ->method('getBody')
            ->willReturn($this->getTransferData());

        return $transferObjectMock;
    }

    private function getResponseObject()
    {
        $obj = new \stdClass;
        $obj->success = true;

        return $obj;
    }

    private function getTransferData()
    {
        return [
            'test-data-key' => 'test-data-value'
        ];
    }
}