public function testFilterSorting()
{
$filter1 = new TestFilter();
$filter2 = new TestFilter();
$filter3 = new TestFilter();
$transformation1 = new Transformation();
$transformation1->add($filter1, 5)->add($filter2, -3)->add($filter3);
$expected1 = array($filter2, $filter3, $filter1);
$transformation2 = new Transformation();
$transformation2->add($filter1)->add($filter2)->add($filter3);
$expected2 = array($filter1, $filter2, $filter3);
$this->assertSame($expected1, $transformation1->getFilters());
$this->assertSame($expected2, $transformation2->getFilters());
}
