}

    /**
     * Test for unwrap() method with the same type.
     * Verifies that unwrap can return itself when the type matches.
     */
    @Test
    void testUnwrap_withSameType() {
        when(smbTree.unwrap(SmbTree.class)).thenReturn(smbTree);

        SmbTree result = smbTree.unwrap(SmbTree.class);

        assertNotNull(result, "Unwrapped tree should not be null");