feat(db): add entities

tests/Common/DatabaseTestTrait.php

@@ -0,0 +1,49 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Tests\Common;
+
+use Doctrine\ORM\EntityManagerInterface;
+
+trait DatabaseTestTrait
+{
+    protected ?EntityManagerInterface $em;
+
+    protected function bootDatabase(): void
+    {
+        /**
+         * @var EntityManagerInterface $em
+         */
+        $em = $this->getContainer()->get(EntityManagerInterface::class);
+        $this->em = $em;
+        $this->em->getConnection()->executeQuery(<<<EOSQL
+        DO $$
+            DECLARE row RECORD;
+        BEGIN
+            FOR row IN SELECT table_name
+                FROM information_schema.tables
+                WHERE table_type='BASE TABLE'
+                AND table_schema='public'
+            LOOP 
+                EXECUTE format('TRUNCATE TABLE %I CASCADE;',row.table_name);
+            END LOOP;
+        END;
+        $$;
+        EOSQL);
+    }
+
+    protected function getEntityManager(): EntityManagerInterface
+    {
+        if ($this->em === null) {
+            throw new \LogicException('Database has not been booted yet.');
+        }
+
+        return $this->em;
+    }
+
+    protected function getEntityCount(string $entityClass): int
+    {
+        return (int) $this->getEntityManager()->createQuery('SELECT COUNT(e) FROM ' . $entityClass . ' e')->getSingleScalarResult();
+    }
+}