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/**
* Matomo - free/libre analytics platform
*
* @link https://matomo.org
* @license https://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*/
namespace Piwik\Tests\Integration\Db;
use Piwik\Db;
use Piwik\Db\Schema;
use Piwik\Db\TransactionLevel;
use Piwik\Tests\Framework\TestCase\IntegrationTestCase;
/**
* @group TransactionLevelTest
* @group TransactionLevel
* @group Plugins
*/
class TransactionLevelTest extends IntegrationTestCase
{
/**
* @var TransactionLevel
*/
private $level;
/**
* @var \Piwik\Tracker\Db|\Piwik\Db\AdapterInterface|\Piwik\Db $db
*/
private $db;
public function setUp(): void
{
parent::setUp();
$this->db = Db::get();
$this->level = new TransactionLevel($this->db);
}
public function testCanLikelySetTransactionLevel()
{
$this->assertTrue($this->level->canLikelySetTransactionLevel());
}
public function testSetTransactionLevelForNonLockingReadsRestorePreviousStatus()
{
// mysql 8.0 using transaction_isolation
$isolation = $this->db->fetchOne("SHOW GLOBAL VARIABLES LIKE 't%_isolation'");
$isolation = "@@" . $isolation;
$value = $this->db->fetchOne('SELECT ' . $isolation);
$this->assertSame('REPEATABLE-READ', $value);
$this->level->setTransactionLevelForNonLockingReads();
$value = $this->db->fetchOne('SELECT ' . $isolation);
$expectedIsolation = str_replace(' ', '-', Schema::getInstance()->getSupportedReadIsolationTransactionLevel());
$this->assertSame($expectedIsolation, $value);
$this->level->restorePreviousStatus();
$value = $this->db->fetchOne('SELECT ' . $isolation);
$this->assertSame('REPEATABLE-READ', $value);
}
}
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