finishes 13 and 14

tests/TestCase.php

@@ -1,10 +1,25 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Tests;
 
+use App\Models\User;
+use Illuminate\Foundation\Testing\RefreshDatabase;
 use Illuminate\Foundation\Testing\TestCase as BaseTestCase;
 
 abstract class TestCase extends BaseTestCase
 {
-    //
+    use RefreshDatabase;
+
+    /**
+     * Create and authenticate a user for testing.
+     */
+    protected function createAuthenticatedUser(array $attributes = []): User
+    {
+        $user = User::factory()->create($attributes);
+        $this->actingAs($user);
+
+        return $user;
+    }
 }