/**
* @test
*/
public function shouldGroupByCategoryUsingArray()
{
//given
$category = Category::create(array('name' => 'computer'));
Product::create(array('name' => 'notebook', 'id_category' => $category->getId()));
//when
$result = Product::select('id_category, count(*)')->groupBy(array('id_category'))->fetchAll();
//then
Assert::thatArray($result)->containsOnly(array($category->getId(), 1));
}