diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 120d8b6..50535b7 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -64,3 +64,7 @@ jobs:
             -
                 name: Run bundle tests
                 run: composer test
+
+            -
+                name: Run lint container
+                run: (cd src/Bundle/test && bin/console lint:container)
diff --git a/composer.json b/composer.json
index da93f39..d127e6d 100644
--- a/composer.json
+++ b/composer.json
@@ -45,6 +45,7 @@
         "phpunit/phpunit": "^9.4",
         "sylius-labs/coding-standard": "^4.0",
         "symfony/console": "^5.4",
+        "symfony/dotenv": "^5.4",
         "symfony/swiftmailer-bundle": "^3.1",
         "symfony/twig-bundle": "^5.4",
         "vimeo/psalm": "^4.22",
@@ -64,11 +65,9 @@
     "autoload-dev": {
         "psr-4": {
             "Sylius\\Bundle\\MailerBundle\\spec\\": "src/Bundle/spec/",
-            "Sylius\\Component\\Mailer\\spec\\": "src/Component/spec/"
-        },
-        "classmap": [
-            "src/Bundle/test/app/AppKernel.php"
-        ]
+            "Sylius\\Component\\Mailer\\spec\\": "src/Component/spec/",
+            "App\\": "src/Bundle/test/src/"
+        }
     },
     "scripts": {
         "analyse": [
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index b54f546..832d44d 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -5,7 +5,7 @@
          colors="true"
 >
     <php>
-        <server name="KERNEL_CLASS" value="AppKernel" />
+        <server name="KERNEL_CLASS" value="App\Kernel" />
     </php>
 
     <testsuites>
diff --git a/src/Bundle/test/.env b/src/Bundle/test/.env
new file mode 100644
index 0000000..afd9352
--- /dev/null
+++ b/src/Bundle/test/.env
@@ -0,0 +1 @@
+APP_ENV=test
diff --git a/src/Bundle/test/app/AppKernel.php b/src/Bundle/test/app/AppKernel.php
deleted file mode 100644
index 1f4a64e..0000000
--- a/src/Bundle/test/app/AppKernel.php
+++ /dev/null
@@ -1,39 +0,0 @@
-<?php
-
-/*
- * This file is part of the Sylius package.
- *
- * (c) Paweł Jędrzejewski
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-declare(strict_types=1);
-
-use Symfony\Component\Config\Loader\LoaderInterface;
-use Symfony\Component\HttpKernel\Kernel;
-
-class AppKernel extends Kernel
-{
-    /**
-     * {@inheritdoc}
-     */
-    public function registerBundles(): array
-    {
-        return [
-            new Symfony\Bundle\FrameworkBundle\FrameworkBundle(),
-            new Sylius\Bundle\MailerBundle\SyliusMailerBundle(),
-            new Symfony\Bundle\TwigBundle\TwigBundle(),
-            new Symfony\Bundle\SwiftmailerBundle\SwiftmailerBundle(),
-        ];
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function registerContainerConfiguration(LoaderInterface $loader): void
-    {
-        $loader->load(__DIR__ . '/config/config.yml');
-    }
-}
diff --git a/src/Bundle/test/app/config/config.yml b/src/Bundle/test/app/config/config.yml
deleted file mode 100644
index 7b2fce2..0000000
--- a/src/Bundle/test/app/config/config.yml
+++ /dev/null
@@ -1,13 +0,0 @@
-imports:
-    - { resource: "@SyliusMailerBundle/test/app/config/parameters.yml" }
-
-framework:
-    assets: false
-    secret: "%secret%"
-    default_locale: "%locale%"
-    http_method_override: true
-    test: ~
-
-twig:
-    debug: "%kernel.debug%"
-    strict_variables: "%kernel.debug%"
diff --git a/src/Bundle/test/app/console b/src/Bundle/test/app/console
deleted file mode 100755
index 296012b..0000000
--- a/src/Bundle/test/app/console
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/usr/bin/env php
-<?php
-
-/*
- * This file is part of the Sylius package.
- *
- * (c) Paweł Jędrzejewski
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-set_time_limit(0);
-
-require_once __DIR__ . "/../../vendor/autoload.php";
-require_once __DIR__.'/AppKernel.php';
-
-use Symfony\Bundle\FrameworkBundle\Console\Application;
-use Symfony\Component\Console\Input\ArgvInput;
-
-$input = new ArgvInput();
-
-$application = new Application(new AppKernel('test', true));
-$application->run($input);
diff --git a/src/Bundle/test/bin/console b/src/Bundle/test/bin/console
new file mode 100755
index 0000000..3b1b0a6
--- /dev/null
+++ b/src/Bundle/test/bin/console
@@ -0,0 +1,38 @@
+#!/usr/bin/env php
+<?php
+
+use App\Kernel;
+use Symfony\Bundle\FrameworkBundle\Console\Application;
+use Symfony\Component\Console\Input\ArgvInput;
+use Symfony\Component\Debug\Debug;
+
+set_time_limit(0);
+
+require dirname(__DIR__).'/../../../vendor/autoload.php';
+
+if (!class_exists(Application::class)) {
+    throw new RuntimeException('You need to add "symfony/framework-bundle" as a Composer dependency.');
+}
+
+$input = new ArgvInput();
+if (null !== $env = $input->getParameterOption(['--env', '-e'], null, true)) {
+    putenv('APP_ENV='.$_SERVER['APP_ENV'] = $_ENV['APP_ENV'] = $env);
+}
+
+if ($input->hasParameterOption('--no-debug', true)) {
+    putenv('APP_DEBUG='.$_SERVER['APP_DEBUG'] = $_ENV['APP_DEBUG'] = '0');
+}
+
+require dirname(__DIR__).'/config/bootstrap.php';
+
+if ($_SERVER['APP_DEBUG']) {
+    umask(0000);
+
+    if (class_exists(Debug::class)) {
+        Debug::enable();
+    }
+}
+
+$kernel = new Kernel($_SERVER['APP_ENV'], (bool) $_SERVER['APP_DEBUG']);
+$application = new Application($kernel);
+$application->run($input);
diff --git a/src/Bundle/test/config/bootstrap.php b/src/Bundle/test/config/bootstrap.php
new file mode 100644
index 0000000..ff1f1b1
--- /dev/null
+++ b/src/Bundle/test/config/bootstrap.php
@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of the Sylius package.
+ *
+ * (c) Paweł Jędrzejewski
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+use Symfony\Component\Dotenv\Dotenv;
+
+require dirname(__DIR__) . '/../../../vendor/autoload.php';
+
+// Load cached env vars if the .env.local.php file exists
+// Run "composer dump-env prod" to create it (requires symfony/flex >=1.2)
+if (is_array($env = @include dirname(__DIR__) . '/.env.local.php')) {
+    $_SERVER += $env;
+    $_ENV += $env;
+} elseif (!class_exists(Dotenv::class)) {
+    throw new RuntimeException('Please run "composer require symfony/dotenv" to load the ".env" files configuring the application.');
+} else {
+    // load all the .env files
+    (new Dotenv(true))->loadEnv(dirname(__DIR__) . '/.env');
+}
+
+$_SERVER['APP_ENV'] = $_ENV['APP_ENV'] = ($_SERVER['APP_ENV'] ?? $_ENV['APP_ENV'] ?? null) ?: 'test';
+$_SERVER['APP_DEBUG'] = $_SERVER['APP_DEBUG'] ?? $_ENV['APP_DEBUG'] ?? 'prod' !== $_SERVER['APP_ENV'];
+$_SERVER['APP_DEBUG'] = $_ENV['APP_DEBUG'] = (int) $_SERVER['APP_DEBUG'] || filter_var($_SERVER['APP_DEBUG'], \FILTER_VALIDATE_BOOLEAN) ? '1' : '0';
diff --git a/src/Bundle/test/config/bundles.php b/src/Bundle/test/config/bundles.php
new file mode 100644
index 0000000..1ef5aa2
--- /dev/null
+++ b/src/Bundle/test/config/bundles.php
@@ -0,0 +1,19 @@
+<?php
+
+/*
+ * This file is part of the Sylius package.
+ *
+ * (c) Paweł Jędrzejewski
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+return [
+    Symfony\Bundle\FrameworkBundle\FrameworkBundle::class => ['all' => true],
+    Sylius\Bundle\MailerBundle\SyliusMailerBundle::class => ['all' => true],
+    Symfony\Bundle\TwigBundle\TwigBundle::class => ['all' => true],
+    Symfony\Bundle\SwiftmailerBundle\SwiftmailerBundle::class => ['all' => true],
+];
diff --git a/src/Bundle/test/config/packages/framework.yaml b/src/Bundle/test/config/packages/framework.yaml
new file mode 100644
index 0000000..298db27
--- /dev/null
+++ b/src/Bundle/test/config/packages/framework.yaml
@@ -0,0 +1,6 @@
+framework:
+    assets: false
+    secret: "%secret%"
+    default_locale: "%locale%"
+    http_method_override: true
+    test: ~
diff --git a/src/Bundle/test/config/packages/twig.yaml b/src/Bundle/test/config/packages/twig.yaml
new file mode 100644
index 0000000..fa8824d
--- /dev/null
+++ b/src/Bundle/test/config/packages/twig.yaml
@@ -0,0 +1,3 @@
+twig:
+    debug: "%kernel.debug%"
+    strict_variables: "%kernel.debug%"
diff --git a/src/Bundle/test/app/config/parameters.yml b/src/Bundle/test/config/services.yaml
similarity index 100%
rename from src/Bundle/test/app/config/parameters.yml
rename to src/Bundle/test/config/services.yaml
diff --git a/src/Bundle/test/src/Kernel.php b/src/Bundle/test/src/Kernel.php
new file mode 100644
index 0000000..b268e2d
--- /dev/null
+++ b/src/Bundle/test/src/Kernel.php
@@ -0,0 +1,22 @@
+<?php
+
+/*
+ * This file is part of the Sylius package.
+ *
+ * (c) Paweł Jędrzejewski
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace App;
+
+use Symfony\Bundle\FrameworkBundle\Kernel\MicroKernelTrait;
+use Symfony\Component\HttpKernel\Kernel as BaseKernel;
+
+class Kernel extends BaseKernel
+{
+    use MicroKernelTrait;
+}