Test PostRepository with Testcontainer

composer.json

@@ -85,6 +85,7 @@
     "dama/doctrine-test-bundle": "^8.0",
     "doctrine/doctrine-fixtures-bundle": "^3.4",
     "phpunit/phpunit": "^11.0",
+    "shyim/testcontainer": "^0.1.2",
     "symfony/browser-kit": "^7.1",
     "symfony/css-selector": "^7.1",
     "symfony/maker-bundle": "^1.34",

tests/Repository/PostRepositoryTestWithTestcontainers.php

@@ -0,0 +1,80 @@
+<?php
+
+namespace App\Tests\Repository;
+
+use App\Entity\PostFactory;
+use App\Repository\PostRepository;
+use Doctrine\ORM\EntityManagerInterface;
+use Exception;
+use Symfony\Bundle\FrameworkBundle\Console\Application;
+use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
+use Symfony\Component\Console\Tester\CommandTester;
+use Testcontainer\Container\PostgresContainer;
+
+class PostRepositoryTestWithTestcontainers extends KernelTestCase
+{
+
+    private EntityManagerInterface $entityManager;
+
+    private PostRepository $postRepository;
+
+    private PostgresContainer $postgresContainer;
+
+    protected function setUp(): void
+    {
+        // starting Postgres Container
+        $this->postgresContainer = PostgresContainer::make('14', 'password');
+        $this->postgresContainer->withPostgresDatabase('blogdb');
+        $this->postgresContainer->withPostgresUser('user');
+        $this->postgresContainer->withPort("5432", "5432");
+
+        try {
+            $this->postgresContainer->run();
+        } catch (Exception $e) {
+            var_dump($e->getMessage());
+        }
+
+        // boot the Symfony kernel
+        $kernel = self::bootKernel();
+        $this->assertSame('test', $kernel->getEnvironment());
+        $this->entityManager = $kernel->getContainer()
+            ->get('doctrine')
+            ->getManager();
+
+        $application = new Application($kernel);
+        $command = $application->find('doctrine:schema:create');
+        $commandTester = new CommandTester($command);
+        $result = $commandTester->execute(['n']);
+        var_dump("schema:create result:".$result);
+
+        // use static::getContainer() to access the service container
+        $container = static::getContainer();
+
+        //get PostRepository from container.
+        $this->postRepository = $container->get(PostRepository::class);
+    }
+
+    protected function tearDown(): void
+    {
+        parent::tearDown();
+        $this->entityManager->close();
+
+        // stop postgres container
+        $this->postgresContainer->stop();
+    }
+
+    public function testCreatePost(): void
+    {
+        // persist entities with EntityManager
+        $entity = PostFactory::create("test post", "test content");
+        $this->entityManager->persist($entity);
+        $this->entityManager->flush();
+        $this->assertNotNull($entity->getId());
+
+        // query this post by PostRepository
+        $byId = $this->postRepository->findOneBy(["id" => $entity->getId()]);
+        $this->assertEquals("test post", $byId->getTitle());
+        $this->assertEquals("test content", $byId->getContent());
+    }
+
+}

tests/bootstrap.php

@@ -11,3 +11,6 @@
 if ($_SERVER['APP_DEBUG']) {
     umask(0000);
 }
+
+// https://github.com/symfony/symfony/issues/53812#issuecomment-1962311843
+Symfony\Component\ErrorHandler\ErrorHandler::register(null, false);