PHPUnit and Magento example

<?php
/**
 * BSeller Platform | B2W - Companhia Digital
 *
 * Do not edit this file if you want to update this module for future new versions.
 *
 * @category  Esmart
 * @package   Esmart_BSellerApi
 *
 * @copyright Copyright (c) 2016 B2W Digital - BSeller Platform. (http://www.bseller.com.br)
 *
 * @author    Weverson Cachinsky <weverson.cachinsky@e-smart.com.br>
 */

/**
 * @group BSellerApi
 */
class Esmart_BSellerApi_Test_Model_Api_Order_StatusTest extends EcomDev_PHPUnit_Test_Case
{
    use Esmart_BSellerApi_Test_Model_Api_Order_Status_Helper_Trait;

    /**
     * @expectedException TypeError
     * @expectedExceptionMessage must be an instance of Mage_Sales_Model_Order
     */
    public function testOrderObjectInstanceIsMandatoryInConstructor()
    {
        Mage::getModel($this->modelAlias);
    }

    /**
     * @loadExpectation apiResults
     * @dataProvider dataProvider
     * @param string $status
     */
    public function testAllStatusesAreMappedInExpectations($status)
    {
        $expectations = $this->expected('statuses');
        $this->assertTrue($expectations->hasData($status));
    }

    /**
     * @loadExpectation apiResults
     * @expectedException Esmart_BSellerApi_Model_Api_Order_Exception_NotFound
     */
    public function testFailOnGetStatusesFromANonIntegratedOrder()
    {
        $mockMagentoOrder = $this->createMock(Mage_Sales_Model_Order::class, ['getIncrementId']);
        $this->setUpMock($mockMagentoOrder);
        $this->mockOrderStatusHistory('http404', 'json');

        $this->mockStatusUpdated->updateStatus();
    }

    /**
     * @loadExpectation apiResults
     * @dataProvider dataProvider
     * @loadFixture product
     * @loadFixture states
     * @loadFixture order
     *
     * @param string $apiStatusCode
     * @param string $magentoStatus
     * @param string $magentoState
     */
    public function testOrderStatusIsUpdatedToTheMatchingOne($apiStatusCode, $magentoStatus, $magentoState)
    {
        $magentoOrder = $this->processOrderStatusChange($apiStatusCode);

        $this->assertEquals($magentoStatus, $magentoOrder->getStatus());
        $this->assertEquals($magentoState, $magentoOrder->getState());

        $magentoOrder->clearInstance();
    }

    /**
     * @loadExpectation apiResults
     * @loadFixture product
     * @loadFixture states
     * @loadFixture order
     */
    public function testStatusIsLoggedInHistoryEvenIfItWasNotSavedBefore()
    {
        $apiStatusCode = 'EAT';
        $magentoOrder = $this->processOrderStatusChange($apiStatusCode);
        $apiStatusHistory = json_decode($this->expected('statuses')->getData($apiStatusCode), true);

        $orderStatusHistories = $magentoOrder->getAllStatusHistory();
        $this->assertSameSize($apiStatusHistory[0]['statuses'], $orderStatusHistories);
    }

    /**
     * @loadExpectation apiResults
     * @loadFixture product
     * @loadFixture states
     * @loadFixture order
     */
    public function testStatusesAlreadyLoggedInHistoryAreNotLoggedAgain()
    {
        $this->processOrderStatusChange('NOTA_GERADA')->save();
        $this->processOrderStatusChange('EEA')->save();
        $this->processOrderStatusChange('EA1')->save();
        $this->processOrderStatusChange('EA2')->save();
        $this->processOrderStatusChange('EA3')->save();
        $magentoOrder = $this->processOrderStatusChange('EAT')->save();

        $this->assertCount(13, $magentoOrder->getAllStatusHistory());
    }
}