public function testPipeline()
{
$this->assets->reset();
//File not existing. Pipeline searches for that file without reaching it. Output is empty.
$this->assets->add('test.css', null, true);
$this->assets->setCssPipeline(true);
$css = $this->assets->css();
$this->assertSame('', $css);
//Add a core Grav CSS file, which is found. Pipeline will now return a file
$this->assets->add('/system/assets/debugger.css', null, true);
$css = $this->assets->css();
$this->assertContains('<link href=', $css);
$this->assertContains('type="text/css" rel="stylesheet" />', $css);
}
