public function testImapMessageSourceEmptySet()
{
$transport = new ezcMailImapTransport("mta1.ez.no");
$transport->authenticate("*****@*****.**", "ezcomponents");
$transport->createMailbox("Guybrush");
$transport->selectMailbox("Guybrush");
$parser = new ezcMailParser();
$set = new ezcMailStorageSet($transport->fetchAll(), $this->tempDir);
$mail = $parser->parseMail($set);
$this->assertEquals(array(), $mail);
$transport->selectMailbox("Inbox");
$transport->deleteMailbox("Guybrush");
}