public function testHandleOnFlushWithoutNewEmails()
 {
     $entityManager = $this->getMockBuilder('Doctrine\\ORM\\EntityManager')->disableOriginalConstructor()->getMock();
     $uow = $this->getMockBuilder('\\Doctrine\\ORM\\UnitOfWork')->disableOriginalConstructor()->getMock();
     $entityManager->expects($this->exactly(1))->method('getUnitOfWork')->will($this->returnValue($uow));
     $uow->expects($this->once())->method('getScheduledEntityInsertions')->will($this->returnValue([new \stdClass()]));
     $this->manager->handleOnFlush(new OnFlushEventArgs($entityManager));
     $this->assertCount(0, $this->manager->getQueue());
 }