loadFixturesCountries(); $this->loadFixturesStates(); $this->loadFixturesCities(); $this->loadFixturesAttractions(); // Get the id of the first bar $id = $this->attractions[0]->getId(); $repository = $this->_em->getRepository(Bar::class); /** * This instance is fresh new, no QueryCache, so the full entity gets loaded from DB. * It will be saved in the WRONG KEY (notice the cache.bar at the end): * doctrine_tests_models_cache_attraction[doctrine_tests_models_cache_attraction_doctrine.tests.models.cache.bar_1][1] * * @var Bar $bar */ $bar = $repository->findOneBy(['id' => $id]); // Let's change it so that we can compare its state $bar->setName($newName = uniqid()); $this->_em->persist($bar); $this->_em->flush(); /** * Flush did 2 important things for us: * 1: saved the entity in its right key (notice the cache.attraction at the end): * doctrine_tests_models_cache_attraction[doctrine_tests_models_cache_attraction_doctrine.tests.models.cache.attraction_1][1] * 2: Updated the TimestampRegion cache, so that the QueryCache is actually discarded. * * So, first findOneBy will hit DB, and its entity will not be loaded from cache. */ $repository->findOneBy(['id' => $id]); // Lets clear EM so that we don't hit IdentityMap at all. $this->_em->clear(); /** * Here's the failing step: * Right now QueryCache will HIT, as nothing changed between the last one and now. * QueryCache holds a reference to the WRONG KEY, as we saw was formed in line 24 of this test. * So this instance won't be updated and will have the original name ("Boteco São Bento"), and not the uniqid(). * * @var Bar $cached */ $cached = $repository->findOneBy(['id' => $id]); $this->assertEquals($newName, $cached->getName()); } }