class EntityUUIDTest

class EntityUUIDTest extends EntityKernelTestBase {
    protected function setUp() {
        parent::setUp();
        foreach (entity_test_entity_types() as $entity_type_id) {
            // The entity_test schema is installed by the parent.
            if ($entity_type_id != 'entity_test') {
                $this->installEntitySchema($entity_type_id);
            }
        }
    }
    
    /**
     * Tests UUID generation in entity CRUD operations.
     */
    public function testCRUD() {
        // All entity variations have to have the same results.
        foreach (entity_test_entity_types() as $entity_type) {
            $this->assertCRUD($entity_type);
        }
    }
    
    /**
     * Executes the UUID CRUD tests for the given entity type.
     *
     * @param string $entity_type
     *   The entity type to run the tests with.
     */
    protected function assertCRUD($entity_type) {
        // Verify that no UUID is auto-generated when passing one for creation.
        $uuid_service = $this->container
            ->get('uuid');
        $uuid = $uuid_service->generate();
        $custom_entity = $this->container
            ->get('entity_type.manager')
            ->getStorage($entity_type)
            ->create([
            'name' => $this->randomMachineName(),
            'uuid' => $uuid,
        ]);
        $this->assertIdentical($custom_entity->uuid(), $uuid);
        // Save this entity, so we have more than one later.
        $custom_entity->save();
        // Verify that a new UUID is generated upon creating an entity.
        $entity = $this->container
            ->get('entity_type.manager')
            ->getStorage($entity_type)
            ->create([
            'name' => $this->randomMachineName(),
        ]);
        $uuid = $entity->uuid();
        $this->assertNotEmpty($uuid);
        // Verify that the new UUID is different.
        $this->assertNotEqual($custom_entity->uuid(), $uuid);
        // Verify that the UUID is retained upon saving.
        $entity->save();
        $this->assertIdentical($entity->uuid(), $uuid);
        // Verify that the UUID is retained upon loading.
        
        /** @var \Drupal\Core\Entity\EntityStorageInterface $storage */
        $storage = $this->container
            ->get('entity_type.manager')
            ->getStorage($entity_type);
        $storage->resetCache([
            $entity->id(),
        ]);
        $entity_loaded = $storage->load($entity->id());
        $this->assertIdentical($entity_loaded->uuid(), $uuid);
        // Verify that \Drupal::service('entity.repository')->loadEntityByUuid() loads the same entity.
        $entity_loaded_by_uuid = \Drupal::service('entity.repository')->loadEntityByUuid($entity_type, $uuid, TRUE);
        $this->assertIdentical($entity_loaded_by_uuid->uuid(), $uuid);
        $this->assertEqual($entity_loaded_by_uuid->id(), $entity_loaded->id());
        // Creating a duplicate needs to result in a new UUID.
        $entity_duplicate = $entity->createDuplicate();
        foreach ($entity->getFields() as $property => $value) {
            switch ($property) {
                case 'uuid':
                    $this->assertNotNull($entity_duplicate->uuid());
                    $this->assertNotNull($entity->uuid());
                    $this->assertNotEqual($entity_duplicate->uuid(), $entity->uuid());
                    break;
                case 'id':
                    $this->assertNull($entity_duplicate->id());
                    $this->assertNotNull($entity->id());
                    $this->assertNotEqual($entity_duplicate->id(), $entity->id());
                    break;
                case 'revision_id':
                    $this->assertNull($entity_duplicate->getRevisionId());
                    $this->assertNotNull($entity->getRevisionId());
                    $this->assertNotEqual($entity_duplicate->getRevisionId(), $entity->getRevisionId());
                    $this->assertNotEqual($entity_duplicate->{$property}
                        ->getValue(), $entity->{$property}
                        ->getValue());
                    break;
                default:
                    $this->assertEqual($entity_duplicate->{$property}
                        ->getValue(), $entity->{$property}
                        ->getValue());
            }
        }
        $entity_duplicate->save();
        $this->assertNotEqual($entity->id(), $entity_duplicate->id());
    }

}