// When
        mockIterator.close();

        // Then
        verify(mockIterator).close();
    }

    @Test
    @DisplayName("Should extend Iterator and AutoCloseable")
    void testInterfaceInheritance() {
        // Then
        assertTrue(java.util.Iterator.class.isAssignableFrom(CloseableIterator.class));
        assertTrue(AutoCloseable.class.isAssignableFrom(CloseableIterator.class));
    }

    }

    @Nested
    @DisplayName("Interface Contract Tests")
    class InterfaceContractTests {

        @Test
        @DisplayName("SmbResource should extend AutoCloseable")
        void testInterfaceInheritance() {
            // Then
            assertTrue(AutoCloseable.class.isAssignableFrom(SmbResource.class), "SmbResource should extend AutoCloseable");
        }

        @Test