public function testValid()
{
$past = new \DateTime('5 minutes ago', new \DateTimeZone('UTC'));
$notBeforeClaim = $this->getMockBuilder('Emarref\\Jwt\\Claim\\NotBefore')->getMock();
$notBeforeClaim->expects($this->exactly(2))->method('getValue')->will($this->returnValue($past->getTimestamp()));
$this->payload->expects($this->once())->method('findClaimByName')->with(NotBefore::NAME)->will($this->returnValue($notBeforeClaim));
$this->verifier->verify($this->token);
}