szuru/tests/Dao/TransactionManagerTest.php

<?php
namespace Szurubooru\Tests\Dao;
use Szurubooru\Dao\TokenDao;
use Szurubooru\Dao\TransactionManager;
use Szurubooru\Entities\Token;
use Szurubooru\Tests\AbstractDatabaseTestCase;

final class TransactionManagerTest extends AbstractDatabaseTestCase
{
    public function testCommit()
    {
        $testEntity = $this->getTestEntity();
        $testDao = $this->getTestDao();

        $transactionManager = $this->getTransactionManager();
        $transactionManager->commit(function() use ($testDao, &$testEntity)
        {
            $testDao->save($testEntity);
            $this->assertNotNull($testEntity->getId());
        });

        $this->assertNotNull($testEntity->getId());
        $this->assertEntitiesEqual($testEntity, $testDao->findById($testEntity->getId()));
    }

    public function testRollback()
    {
        $testEntity = $this->getTestEntity();
        $testDao = $this->getTestDao();

        $transactionManager = $this->getTransactionManager();
        $transactionManager->rollback(function() use ($testDao, &$testEntity)
        {
            $testDao->save($testEntity);
            $this->assertNotNull($testEntity->getId());
        });

        //ids that could be forged in transaction get left behind after rollback
        $this->assertNotNull($testEntity->getId());

        $this->databaseConnection->getPDO()->rollBack();
        $this->databaseConnection->getPDO()->beginTransaction();

        //but entities shouldn't be saved to database
        $this->assertNull($testDao->findById($testEntity->getId()));
    }

    public function testNestedTransactions()
    {
        $testEntity = $this->getTestEntity();
        $testDao = $this->getTestDao();

        $transactionManager = $this->getTransactionManager();
        $transactionManager->commit(function() use ($transactionManager, $testDao, &$testEntity)
        {
            $transactionManager->commit(function() use ($testDao, &$testEntity)
            {
                $testDao->save($testEntity);
                $this->assertNotNull($testEntity->getId());
            });
        });

        $this->assertNotNull($testEntity->getId());
        $this->assertEntitiesEqual($testEntity, $testDao->findById($testEntity->getId()));
    }

    private function getTestEntity()
    {
        $token = new Token();
        $token->setName('yo');
        $token->setPurpose(Token::PURPOSE_ACTIVATE);
        return $token;
    }

    private function getTestDao()
    {
        return new TokenDao($this->databaseConnection);
    }

    private function getTransactionManager()
    {
        return new TransactionManager($this->databaseConnection);
    }
}