Password validation rule

README.md

@@ -79,3 +79,15 @@ In file `routes/web.php` add a Middleware to that URL.
 Test method: `test_password_confirmation_page()`.
 
 ---
+
+## Task 7. Password with Letters.
+
+By default, registration form requires password with at least 8 characters.
+Add a validation rule so that password must have at least one letter, no matter uppercase or lowercase.
+
+So password `12345678` is invalid, but password `a12345678` is valid.
+
+Hint: you need to modify file `app/Http/Controllers/Auth/RegisteredUserController.php`, which is almost default from Laravel Breeze.
+
+Test method: `test_password_at_least_one_uppercase_lowercase_letter()`.
+

tests/Feature/AuthenticationTest.php

@@ -6,6 +6,7 @@ use App\Models\User;
 use App\Providers\RouteServiceProvider;
 use Illuminate\Foundation\Testing\RefreshDatabase;
 use Illuminate\Support\Facades\Auth;
+use Illuminate\Validation\ValidationException;
 use Tests\TestCase;
 use Illuminate\Support\Facades\Event;
 use Illuminate\Support\Facades\URL;
@@ -130,4 +131,27 @@ class AuthenticationTest extends TestCase
         $response->assertRedirect();
         $response->assertSessionHasNoErrors();
     }
+
+    public function test_password_at_least_one_uppercase_lowercase_letter()
+    {
+        $user = [
+            'name' => 'New name',
+            'email' => 'new@email.com',
+        ];
+
+        $invalidPassword = '12345678';
+        $validPassword = 'a12345678';
+
+        $this->post('/register', $user + [
+            'password' => $invalidPassword,
+            'password_confirmation' => $invalidPassword
+        ]);
+        $this->assertDatabaseMissing('users', $user);
+
+        $this->post('/register', $user + [
+                'password' => $validPassword,
+                'password_confirmation' => $validPassword
+            ]);
+        $this->assertDatabaseHas('users', $user);
+    }
 }