public function testGetFilters()
{
$filter = new FilterChain();
$filter1 = new StripUpperCase();
$filter2 = new LowerCase();
$filter->appendFilter($filter1)->prependFilter($filter2);
$array = $filter->getFilters();
$this->assertEquals($filter2, $array[0]);
$this->assertEquals($filter1, $array[1]);
}