// Default configuration
        when(mockConfig.isDfsDisabled()).thenReturn(false);
        when(mockConfig.isEncryptionEnabled()).thenReturn(true);
        when(mockConfig.getMinimumVersion()).thenReturn(DialectVersion.SMB202);
        when(mockConfig.getMaximumVersion()).thenReturn(DialectVersion.SMB311);
        when(mockConfig.getTransactionBufferSize()).thenReturn(65536);
        when(mockConfig.getReceiveBufferSize()).thenReturn(65536);

    void testConstructorWithNullFilename() {
        // When & Then
        assertDoesNotThrow(() -> new Trans2GetDfsReferral(mockConfig, null));
    }

    @Test
    @DisplayName("Constructor should handle empty filename")
    void testConstructorWithEmptyFilename() {
        // When & Then
        assertDoesNotThrow(() -> new Trans2GetDfsReferral(mockConfig, ""));
    }

    @Test

        int dstIndex = 0;

        // When
        int result = smbComRename.writeBytesWireFormat(dst, dstIndex);

        // Then
        assertTrue(result > 0);
        assertEquals((byte) 0x04, dst[0]); // First buffer format byte

        // Find the second buffer format byte by searching for it
        // In Unicode mode, the old filename is written as Unicode, then 0x04, then an alignment byte

        byte[] buffer = new byte[256];

        // When
        req.encode(buffer, 0);

        // Then
        assertEquals(0, SMBUtil.readInt2(buffer, Smb2Constants.SMB2_HEADER_LENGTH + 6)); // Path length should be 0
    }

    @Test
    @DisplayName("Should handle null path")
    void testNullPath() {
        // When creating with null path

            when(mockChunk1.encode(any(byte[].class), anyInt())).thenReturn(CHUNK_SIZE);
            when(mockChunk2.encode(any(byte[].class), anyInt())).thenReturn(CHUNK_SIZE);

            SrvCopychunkCopy copy = new SrvCopychunkCopy(sourceKey, mockChunk1, mockChunk2);
            byte[] buffer = new byte[200];

            // When
            copy.encode(buffer, 0);

            // Then

            // Given
            when(mockResource.children()).thenReturn(mockIterator);
            when(mockResource.children("*.txt")).thenReturn(mockIterator);
            when(mockResource.children(mockNameFilter)).thenReturn(mockIterator);
            when(mockResource.children(mockResourceFilter)).thenReturn(mockIterator);

            // When

        when(mockConfig.isDfsDisabled()).thenReturn(false);
        when(mockConfig.isEncryptionEnabled()).thenReturn(true);
        when(mockConfig.getMinimumVersion()).thenReturn(DialectVersion.SMB202);
        when(mockConfig.getMaximumVersion()).thenReturn(DialectVersion.SMB311);
        when(mockConfig.getMachineId()).thenReturn(testMachineId);
        when(mockConfig.getRandom()).thenReturn(mockRandom);

    void testConstructor() {
        // Given
        Configuration config = mock(Configuration.class);
        when(config.getNotifyBufferSize()).thenReturn(8192);

        // When
        Smb2ChangeNotifyRequest req = new Smb2ChangeNotifyRequest(config, testFileId);

        // Then
        assertNotNull(req);
        assertTrue(req instanceof ServerMessageBlock2Request);

            NdrBuffer decodeBuffer = mock(NdrBuffer.class);
            when(decodeBuffer.dec_ndr_short()).thenReturn(originalValue);

            // When: Encoding then decoding
            ndrShort1.encode(encodeBuffer);

            NdrShort ndrShort2 = new NdrShort(0);
            ndrShort2.decode(decodeBuffer);

            // Then: Values should match
            verify(encodeBuffer).enc_ndr_short(originalValue);

        when(mockConfig.getNetbiosLocalAddress()).thenReturn(InetAddress.getByName("127.0.0.1"));
        when(mockConfig.getBroadcastAddress()).thenReturn(InetAddress.getByName("255.255.255.255"));
        when(mockConfig.getNetbiosSndBufSize()).thenReturn(576);
        when(mockConfig.getNetbiosRcvBufSize()).thenReturn(576);