/**
  * @dataProvider instanceProvider
  * @param ReferenceList $references
  */
 public function testGetReference(ReferenceList $references)
 {
     $this->assertNull($references->getReference('~=[,,_,,]:3'));
     /**
      * @var Reference $reference
      */
     foreach ($references as $reference) {
         $this->assertTrue($reference->equals($references->getReference($reference->getHash())));
     }
 }