blog example

self::assertColumns($schema, 'ce_blog_comment_translation', ['ce_blog_comment_id', 'language_id', 'created_at', 'updated_at', 'title', 'content']);
        self::assertColumns($schema, 'custom_entity_blog_products', ['custom_entity_blog_id', 'product_id', 'product_version_id']);
        self::assertColumns($schema, 'product', ['customEntityBlogInheritedProducts', 'customEntityBlogInheritedTopSeller']);
        self::assertColumns($schema, 'category', ['custom_entity_blog_links_restrict_id', 'custom_entity_blog_links_set_null_id']);
    }

    private function testEventSystem(IdsCollection $ids, ContainerInterface $container): void
    {
        /** @var EntityRepository $blogRepository */
        $blogRepository = $container->get('custom_entity_blog.repository');

        $blogRepository->create([self::blog('blog-4', $ids)], Context::createDefaultContext());

        $event = $blogRepository->delete([['id' => $ids->get('blog-4')]], Context::createDefaultContext());

        static::assertSame(EntityWrittenContainerEvent::class, $event::class);
        static::assertCount(1, $event->getPrimaryKeys('custom_entity_blog'));
        static::assertContains($ids->get('blog-4'), $event->getPrimaryKeys('custom_entity_blog'));

        $cascade = $event->getPrimaryKeys('custom_entity_blog_products');
        static::assertCount(2, $cascade);

        $cascade = $event->getPrimaryKeys('ce_blog_comment');