| ((buffer[Smb2Constants.SMB2_HEADER_LENGTH + 7] & 0xFF) << 24);
        assertEquals(fileIndex, readIndex);
    }

    @Test
    @DisplayName("Test setFileName method with null")
    void testSetFileNameNull() {
        request = new Smb2QueryDirectoryRequest(mockConfig);

        request.setFileName(null);

        // Verify size calculation doesn't include filename