ConnectionFailureTest.php in Drupal 9
Same filename and directory in other branches
Namespace
Drupal\Tests\dblog\KernelFile
core/modules/dblog/tests/src/Kernel/ConnectionFailureTest.phpView source
<?php
namespace Drupal\Tests\dblog\Kernel;
use Drupal\Core\Database\Database;
use Drupal\KernelTests\KernelTestBase;
/**
* Tests logging of connection failures.
*
* @group dblog
*/
class ConnectionFailureTest extends KernelTestBase {
/**
* {@inheritdoc}
*/
protected static $modules = [
'dblog',
];
/**
* Tests logging of connection failures.
*/
public function testConnectionFailureLogging() {
$this
->installSchema('dblog', [
'watchdog',
]);
// MySQL errors like "1153 - Got a packet bigger than 'max_allowed_packet'
// bytes" or "1100 - Table 'xyz' was not locked with LOCK TABLES" lead to a
// database connection unusable for further requests. All further request
// will result in a "2006 - MySQL server had gone away" error. As a
// consequence it's impossible to use this connection to log the causing
// initial error itself. Using Database::closeConnection() we simulate such
// a corrupted connection. In this case dblog has to establish a different
// connection by itself to be able to write the log entry.
Database::closeConnection();
// Create a log entry.
$this->container
->get('logger.factory')
->get('php')
->error('testConnectionFailureLogging');
// Re-establish the default database connection.
$database = Database::getConnection();
$query = $database
->select('watchdog')
->condition('message', 'testConnectionFailureLogging');
$query
->addExpression('MAX([wid])');
$wid = $query
->execute()
->fetchField();
$this
->assertNotEmpty($wid, 'Watchdog entry has been stored in database.');
}
}
Classes
Name![]() |
Description |
---|---|
ConnectionFailureTest | Tests logging of connection failures. |