/**
  *
  * @dataProvider getOrderByStringProvider
  */
 public function testGetOrderByString($orderBys, $expected, $expectedFormatted)
 {
     foreach ($orderBys as $orderBy) {
         $this->queryBuilder->orderBy($orderBy[0], $orderBy[1]);
     }
     $this->assertEquals($expected, $this->queryBuilder->getOrderByString());
     $this->assertEquals($expectedFormatted, $this->queryBuilder->getOrderByString(true));
 }