// Create updater with a new item
        ProtwordsItem newItem = new ProtwordsItem(0, "testNew");
        ProtwordsFile.ProtwordsUpdater updater = protwordsFile.new ProtwordsUpdater(newItem);

        // Write an existing item (should pass through)
        ProtwordsItem existingItem = new ProtwordsItem(10, "existing");
        ProtwordsItem result = updater.write(existingItem);

        assertNotNull(result);

    }

    @Test
    public void test_equals() {
        // Test equals method
        ProtwordsItem item1 = new ProtwordsItem(1, "word");
        ProtwordsItem item2 = new ProtwordsItem(2, "word");
        ProtwordsItem item3 = new ProtwordsItem(1, "different");
        ProtwordsItem item4 = new ProtwordsItem(1, "word");

        // Same object
        assertTrue(item1.equals(item1));