chore: initial import for test contour

tests/Service/AESCryptServiceTest.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace Tests\Service;
+
+use App\Service\Crypt\AESCryptService;
+use PHPUnit\Framework\TestCase;
+
+class AESCryptServiceTest extends TestCase
+{
+    private AESCryptService $service;
+
+    protected function setUp(): void
+    {
+        $secret = $_ENV['AES_SECRET_KEY'];
+        $cipher = $_ENV['AES_CIPHER_METHOD'];
+        
+        $this->service = new AESCryptService($secret, $cipher);
+    }
+
+    public function testEncryptDecrypt(): void
+    {
+        $plaintext = 'Hello, world!';
+        $encrypted = $this->service->encrypt($plaintext);
+        $decrypted = $this->service->decrypt($encrypted);
+
+        $this->assertNotEquals($plaintext, $encrypted);
+        $this->assertEquals($plaintext, $decrypted);
+    }
+}