public function testCommentsWithValueToAndFromStringShouldMatch()
 {
     $this->comments->rel = "http://schemas.google.com/g/2005#regular";
     $commentsXml = $this->comments->saveXML();
     $newComments = new Zend_Gdata_Extension_Comments();
     $newComments->transferFromXML($commentsXml);
     $newCommentsXml = $newComments->saveXML();
     $this->assertTrue($commentsXml == $newCommentsXml);
     $this->assertEquals("http://schemas.google.com/g/2005#regular", $this->comments->rel);
 }