public function test_that_it_can_set_and_get_timestamp()
{
$timestamp = time();
$this->message->setTimestamp($timestamp);
$this->assertSame($timestamp, $this->message->getTimestamp());
}
/**
* Sets the timestamp
*
* @param Message $message The mail message
* @param Swift_Message $swiftMessage The Swift Mailer message
*
* @return void
*/
protected function setTimestamp(Message $message, Swift_Message $swiftMessage)
{
$timestamp = $message->getTimestamp();
if ($timestamp !== null) {
$swiftMessage->setDate($timestamp);
}
}