public function testAttendeeTypeWithValueToAndFromStringShouldMatch()
 {
     $this->attendeeType->value = "http://schemas.google.com/g/2005#event.optional";
     $attendeeTypeXml = $this->attendeeType->saveXML();
     $newAttendeeType = new Zend_Gdata_Extension_AttendeeType();
     $newAttendeeType->transferFromXML($attendeeTypeXml);
     $newAttendeeTypeXml = $newAttendeeType->saveXML();
     $this->assertTrue($attendeeTypeXml == $newAttendeeTypeXml);
     $this->assertEquals("http://schemas.google.com/g/2005#event.optional", $this->attendeeType->value);
 }