public function setUp()
 {
     $offering = $this->createOffering();
     $this->fakeOfferingManager = $this->getMockBuilder('Ilios\\CoreBundle\\Entity\\Manager\\OfferingManager')->disableOriginalConstructor()->getMock();
     $this->fakeOfferingManager->method('getOfferingsForTeachingReminders')->will($this->returnValueMap([[7, new ArrayCollection([$offering])], [10, new ArrayCollection()]]));
     $kernel = $this->createKernel();
     $kernel->boot();
     $application = new Application($kernel);
     $command = new SendTeachingRemindersCommand($this->fakeOfferingManager, $kernel->getContainer()->get('templating'), $kernel->getContainer()->get('mailer'));
     $application->add($command);
     $commandInApp = $application->find(self::COMMAND_NAME);
     $this->commandTester = new CommandTester($commandInApp);
 }