public function testGetHash()
 {
     $derived = new DerivativeResourceLoaderContext(self::getContext());
     $this->assertEquals($derived->getHash(), 'zh|fallback|||scripts|||||');
     $derived->setLanguage('nl');
     $derived->setUser('Example');
     // Assert that subclass is able to clear parent class "hash" member
     $this->assertEquals($derived->getHash(), 'nl|fallback||Example|scripts|||||');
 }