public function noTransformCacheDirectiveIsRenderedCorrectly()
{
$headers = new Headers();
$headers->setCacheControlDirective('no-transform');
$headers->setCacheControlDirective('public');
$this->assertEquals('public, no-transform', $headers->get('Cache-Control'));
$headers->removeCacheControlDirective('no-transform');
$this->assertEquals('public', $headers->get('Cache-Control'));
}