test: capture expected email failure logs

backend/bookings/test_services.py

@@ -82,16 +82,23 @@ class BookingServiceTests(TestCase):
 
     @patch("bookings.emailing.send_mail", side_effect=RuntimeError("SMTP down"))
     def test_create_pending_reservation_logs_email_failure_without_crashing(self, mocked_send_mail):
-        result = create_pending_reservation(
-            performance_id=self.performance.id,
-            name="Maria Rossi",
-            email="maria@example.com",
-            party_size=1,
-        )
+        with self.assertLogs("bookings.emailing", level="ERROR") as captured_logs:
+            result = create_pending_reservation(
+                performance_id=self.performance.id,
+                name="Maria Rossi",
+                email="maria@example.com",
+                party_size=1,
+            )
 
         self.assertEqual(result.reservation.status, Reservation.Status.PENDING)
         self.assertEqual(Reservation.objects.count(), 1)
         mocked_send_mail.assert_called_once()
+        self.assertTrue(
+            any(
+                "Failed to send confirmation email for reservation" in log_entry
+                for log_entry in captured_logs.output
+            )
+        )
 
     def test_generate_confirmation_token_returns_raw_token_once(self):
         reservation = self.create_reservation()