/**
* Tests the copy() method.
*/
public function testCopy()
{
$document = new \DOMDocument();
$image1 = new Image($document, new MetadataBag());
$image2 = $image1->copy();
$this->assertSame($document, $image1->getDomDocument());
$this->assertNotSame($document, $image2->getDomDocument());
}
