class OrderByTest

class OrderByTest extends UnitTestCase {
  
  /**
   * The select query object to test.
   *
   * @var \Drupal\Core\Database\Query\Select
   */
  protected $query;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    $mockPdo = $this->createMock(StubPDO::class);
    $connection = new StubConnection($mockPdo, []);
    $this->query = new Select($connection, 'test', NULL);
  }
  
  /**
   * Checks that invalid sort directions in ORDER BY get converted to ASC.
   */
  public function testInvalidDirection() {
    $this->query
      ->orderBy('test', 'invalid direction');
    $order_bys = $this->query
      ->getOrderBy();
    $this->assertEquals('ASC', $order_bys['test'], 'Invalid order by direction is converted to ASC.');
  }
  
  /**
   * Tests that fields passed for ordering get escaped properly.
   */
  public function testFieldEscaping() {
    $this->query
      ->orderBy('x; DROP table node; --');
    $sql = $this->query
      ->__toString();
    $this->assertStringEndsWith('ORDER BY xDROPtablenode ASC', $sql, 'Order by field is escaped correctly.');
  }

}