function DriverSpecificConnectionUnitTestBase::testOpenQueryPrefetchClose

Same name in other branches
  1. 10 core/tests/Drupal/KernelTests/Core/Database/DriverSpecificConnectionUnitTestBase.php \Drupal\KernelTests\Core\Database\DriverSpecificConnectionUnitTestBase::testOpenQueryPrefetchClose()
  2. 11.x core/tests/Drupal/KernelTests/Core/Database/DriverSpecificConnectionUnitTestBase.php \Drupal\KernelTests\Core\Database\DriverSpecificConnectionUnitTestBase::testOpenQueryPrefetchClose()

Tests Database::closeConnection() with a query and custom prefetch method.

File

core/tests/Drupal/KernelTests/Core/Database/DriverSpecificConnectionUnitTestBase.php, line 129

Class

DriverSpecificConnectionUnitTestBase
Tests management of database connections.

Namespace

Drupal\KernelTests\Core\Database

Code

public function testOpenQueryPrefetchClose() : void {
    // Execute a query.
    Database::getConnection(static::TEST_TARGET_CONNECTION)->query($this->getQuery()['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.
    $this->assertNoConnection($this->id);
}

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