not getting the same precise error message, but perhaps the intent is the same?; anyway, updated views & some FTs, base.html for more dynamic error handling (tho incomplete)

src/apps/dashboard/tests/test_models.py

@@ -1,3 +1,5 @@
+from django.core.exceptions import ValidationError
+from django.db.utils import IntegrityError
 from django.test import TestCase
 from ..models import Item, List
 
@@ -28,4 +30,15 @@ class ListAndItemModelsTest(TestCase):
         self.assertEqual(first_saved_item.list, mylist)
         self.assertEqual(second_saved_item.text, "A sequel somehow better than the first")
         self.assertEqual(second_saved_item.list, mylist)
-        
+
+    def test_cannot_save_null_list_items(self):
+        mylist = List.objects.create()
+        item = Item(list=mylist, text=None)
+        with self.assertRaises(IntegrityError):
+            item.save()
+
+    def test_cannot_save_empty_list_items(self):
+        mylist = List.objects.create()
+        item = Item(list=mylist, text="")
+        with self.assertRaises(ValidationError):
+            item.full_clean()