test: add tests for user role field

tienda_ilusion/users/tests.py

@@ -31,7 +31,7 @@ class MeEndpointTests(TestCase):
         self.assertEqual(response.status_code, 200)
 
         expected_fields = {'id', 'username', 'email',
-                           'first_name', 'last_name'}
+                           'first_name', 'last_name', 'role'}
         self.assertTrue(expected_fields.issubset(response.json().keys()))
 
         data = response.json()
@@ -39,6 +39,53 @@ class MeEndpointTests(TestCase):
         self.assertEqual(data['email'], self.user.email)
         self.assertEqual(data['first_name'], self.user.first_name)
         self.assertEqual(data['last_name'], self.user.last_name)
+        self.assertEqual(data['role'], 'administrator')
+
+    def test_regular_user_role_is_user(self):
+        """
+        Verifica que un usuario sin permisos de staff recibe role 'user'.
+        """
+        regular_user = User.objects.create_user(
+            username='regular',
+            email='regular@example.com',
+            password='regularpass',
+            is_staff=False
+        )
+
+        refresh = RefreshToken.for_user(regular_user)
+        access_token = str(refresh.access_token)
+
+        client = APIClient()
+        client.credentials(HTTP_AUTHORIZATION=f'Bearer {access_token}')
+
+        url = reverse('current-user')
+        response = client.get(url)
+
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response.json()['role'], 'user')
+
+    def test_staff_user_role_is_administrator(self):
+        """
+        Verifica que un usuario con is_staff=True recibe role 'administrator'.
+        """
+        staff_user = User.objects.create_user(
+            username='staff',
+            email='staff@example.com',
+            password='staffpass',
+            is_staff=True
+        )
+
+        refresh = RefreshToken.for_user(staff_user)
+        access_token = str(refresh.access_token)
+
+        client = APIClient()
+        client.credentials(HTTP_AUTHORIZATION=f'Bearer {access_token}')
+
+        url = reverse('current-user')
+        response = client.get(url)
+
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response.json()['role'], 'administrator')
 
     def test_me_endpoint_requires_authentication(self):
         """