public function testBundleShouldUseJsFilters()
{
$filter = $this->getMock('\\DotsUnited\\BundleFu\\Filter\\FilterInterface');
$filter->expects($this->at(0))->method('filterFile')->will($this->returnValue('filtered1'));
$filter->expects($this->at(1))->method('filter')->will($this->returnValue('filtered2'));
$this->bundle->setJsFilter($filter);
$this->bundle->start();
echo '<script src="/js/js_1.js?1000" type="text/javascript"></script>';
$this->bundle->end();
$this->bundle->render();
$this->assertFileMatch($this->bundle->getJsBundlePath(), 'filtered2');
}