chore: Add test for resend notifications

apps/onboarding-functions/src/test/java/it/pagopa/selfcare/onboarding/functions/NotificationFunctionsTest.java

@@ -379,5 +379,23 @@ void resendNotificationsActivity_failsParsingFilters() {
 
         Mockito.verifyNoInteractions(notificationEventResenderService);
     }
+
+    @Test
+    void resendNotificationsActivityException() throws JsonProcessingException {
+        ExecutionContext context = mock(ExecutionContext.class);
+        doReturn(Logger.getGlobal()).when(context).getLogger();
+        String filtersString = "{\"productId\":\"prod-pagopa\", \"status\":[\"COMPLETED\"]}";
+
+        doThrow(new NotificationException("Error")).when(notificationEventService).send(any(), any(), any(), any());
+        when(notificationEventResenderService.resendNotifications(any(), any())).thenReturn(null);
+
+        String nextFilter = function.resendNotificationsActivity(filtersString, context);
+
+        ArgumentCaptor<ResendNotificationsFilters> filtersStringCaptor = ArgumentCaptor.forClass(ResendNotificationsFilters.class);
+        Mockito.verify(notificationEventResenderService, times(1))
+                .resendNotifications(filtersStringCaptor.capture(), any());
+        assertEquals("prod-pagopa", filtersStringCaptor.getValue().getProductId());
+        assertNull(nextFilter);
+    }
 }