public function testThreadCreateWhenNotFound()
 {
     $emailFromThread = $this->getMock('Oro\\Bundle\\EmailBundle\\Entity\\Email');
     $emailFromThread->expects($this->never())->method('getThread');
     $this->emailThreadProvider->expects($this->once())->method('getEmailThread')->will($this->returnValue(null));
     $this->emailThreadProvider->expects($this->never())->method('getEmailReferences')->will($this->returnValue([$emailFromThread]));
     $email = $this->getMock('Oro\\Bundle\\EmailBundle\\Entity\\Email');
     $email->expects($this->exactly(1))->method('getThread')->will($this->returnValue(null));
     $emailFromThread->expects($this->never())->method('setThread');
     $entityManager = $this->getMockBuilder('Doctrine\\ORM\\EntityManager')->disableOriginalConstructor()->getMock();
     $entityManager->expects($this->never())->method('persist');
     $entityManager->expects($this->exactly(1))->method('flush');
     $this->manager->addEmailToQueueThreadUpdate($email);
     $this->manager->handlePostFlush(new PostFlushEventArgs($entityManager));
     $this->assertEmpty($this->manager->getQueueThreadUpdate());
 }