def test_Condition_from_table_row(self) -> None:
         """Test .from_table_row() properly reads in class from DB"""
-        self.check_from_table_row(1)
+        self.check_from_table_row()
         c = self.versioned_condition()
         c.save(self.db_conn)
         assert isinstance(c.id_, int)
 
 
     def test_Day_saving_and_caching(self) -> None:
         """Test .save/.save_core."""
-        kwargs = {'date': '2024-01-01', 'comment': 'foo'}
+        kwargs = {'date': self.default_ids[0], 'comment': 'foo'}
         self.check_saving_and_caching(**kwargs)
 
     def test_Day_from_table_row(self) -> None:
         """Test .from_table_row() properly reads in class from DB"""
-        self.check_from_table_row('2024-01-01')
+        self.check_from_table_row()
 
     def test_Day_by_id(self) -> None:
         """Test .by_id()."""
 
         self.assertEqual(self.checked_class(id2), by_id_created)
         self.check_storage([obj])
 
-    def check_from_table_row(self, id_: int | str) -> None:
+    def check_from_table_row(self) -> None:
         """Test .from_table_row() properly reads in class from DB"""
+        id_ = self.default_ids[0]
         obj = self.checked_class(id_)  # pylint: disable=not-callable
         obj.save(self.db_conn)
         assert isinstance(obj.id_, (str, int))