public function testCount()
{
$this->collection->createDocument(array('param1' => 1, 'param2' => 1))->save();
$this->collection->createDocument(array('param1' => 1, 'param2' => 2))->save();
$this->collection->createDocument(array('param1' => 1, 'param2' => 3))->save();
$this->collection->createDocument(array('param1' => 2, 'param2' => 2))->save();
$queryBuilder = $this->collection->find()->where('param1', 1)->limit(1)->skip(1);
$this->assertEquals(3, count($queryBuilder));
}