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.');
    }

}