public function testAddMetadatas()
{
$document = new Document();
$document->addMetadatas(array('foo' => 'bar'));
$this->assertSame(array('foo' => 'bar'), $document->getMetadatas());
$document->addMetadatas(array('foo2' => 'bar2'));
$this->assertSame(array('foo' => 'bar', 'foo2' => 'bar2'), $document->getMetadatas());
}