function ConnectionUnitTest::testOpenQueryPrefetchClose
Same name in other branches
- 7.x modules/simpletest/tests/database_test.test \ConnectionUnitTest::testOpenQueryPrefetchClose()
Tests Database::closeConnection() with a query and custom prefetch method.
File
-
core/
tests/ Drupal/ KernelTests/ Core/ Database/ ConnectionUnitTest.php, line 157
Class
- ConnectionUnitTest
- Tests management of database connections.
Namespace
Drupal\KernelTests\Core\DatabaseCode
public function testOpenQueryPrefetchClose() {
// Only run this test for the 'mysql' driver.
$driver = $this->connection
->driver();
if ($driver !== 'mysql') {
$this->markTestSkipped("MySql tests can not run for driver '{$driver}'.");
}
// Add and open a new connection.
$this->addConnection();
$id = $this->getConnectionId();
Database::getConnection(static::TEST_TARGET_CONNECTION);
// Verify that there is a new connection.
$this->assertConnection($id);
// Execute a query.
Database::getConnection(static::TEST_TARGET_CONNECTION)->query('SHOW TABLES')
->fetchCol();
// Close the connection.
Database::closeConnection(static::TEST_TARGET_CONNECTION);
// Wait 20ms to give the database engine sufficient time to react.
usleep(20000);
// Verify that we are back to the original connection count.
$this->assertNoConnection($id);
}
Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.