/**
* @covers Gloubster\Message\Job\AbstractJob::addReceipt
* @covers Gloubster\Message\Job\AbstractJob::getReceipts
*/
public function testAddReceipt()
{
$this->object->setReceipts(array());
$this->assertCount(0, $this->object->getReceipts());
$receipt = $this->getMockBuilder('Gloubster\\Receipt\\ReceiptInterface')->disableOriginalConstructor()->getMock();
$this->object->addReceipt($receipt);
$this->assertEquals(array($receipt), $this->object->getReceipts());
$this->object->addReceipt($receipt);
$this->assertEquals(array($receipt, $receipt), $this->object->getReceipts());
}