assertEquals("original", item.toLineString());

        // When updated, should return newInput
        item.setNewInput("updated");
        assertEquals("updated", item.toLineString());

        // When marked for deletion
        item.setNewInput("");
        assertEquals("", item.toLineString());

        // When newInput is set back to null
        item.setNewInput(null);

        // Test with updated item
        item.setNewInput("updatedword");
        assertEquals("updatedword", item.toLineString());

        // Test with deleted item (empty newInput)
        item.setNewInput("");
        assertEquals("", item.toLineString());

        // Test with item created with id=0
        ProtwordsItem newItem = new ProtwordsItem(0, "newword");