public void testConstructorWithMockConfig() {
        // Setup mock to return a valid PID
        when(mockConfig.getPid()).thenReturn(1234);

        // When
        smbComTreeDisconnect = new SmbComTreeDisconnect(mockConfig);

        // Then
        assertNotNull(smbComTreeDisconnect);
        assertEquals(ServerMessageBlock.SMB_COM_TREE_DISCONNECT, smbComTreeDisconnect.getCommand());

        SMBUtil.writeInt2(4, buffer, 0);
        SMBUtil.writeInt2(0, buffer, 2);

        // When
        int bytesRead = response.readBytesWireFormat(buffer, 0);

        // Then
        assertEquals(4, bytesRead);
    }

    @Test
    @DisplayName("Should throw exception when buffer too small for reading")
    void testReadBytesWireFormatBufferTooSmall() {
        // Given

        when(file.ensureTreeConnected()).thenReturn(tree);
        when(tree.getConfig()).thenReturn(cfg);
        when(tree.getReceiveBufferSize()).thenReturn(1024);
        when(tree.getSendBufferSize()).thenReturn(1024);
        when(tree.hasCapability(anyInt())).thenAnswer(inv -> ntSmbsCap && inv.getArgument(0).equals(SmbConstants.CAP_NT_SMBS));
        when(tree.areSignaturesActive()).thenReturn(false);

            doReturn(mockTreeHandle).when(dest).ensureTreeConnected();
            doReturn(true).when(smbFile).exists();
            doReturn(false).when(dest).exists();
            when(mockTreeHandle.isSMB2()).thenReturn(false);
            when(mockTreeHandle.isSameTree(mockTreeHandle)).thenReturn(true);

        // Given
        when(request.isResponseAsync()).thenReturn(true);
        when(request.getNext()).thenReturn(nextRequest);
        when(request.split()).thenReturn(nextRequest);
        when(request.allowChain(nextRequest)).thenReturn(true);
        when(request.createCancel()).thenReturn(nextRequest);
        when(request.size()).thenReturn(1024);
        when(request.getOverrideTimeout()).thenReturn(5000);

    void testInterfaceMock() {
        // Given
        when(mockBasicFileInfo.getAttributes()).thenReturn(TEST_ATTRIBUTES);
        when(mockBasicFileInfo.getCreateTime()).thenReturn(TEST_CREATE_TIME);
        when(mockBasicFileInfo.getLastWriteTime()).thenReturn(TEST_LAST_WRITE_TIME);
        when(mockBasicFileInfo.getLastAccessTime()).thenReturn(TEST_LAST_ACCESS_TIME);
        when(mockBasicFileInfo.getSize()).thenReturn(1024L);

        // Given
        when(mockCredentials.isAnonymous()).thenReturn(true);

        // When
        boolean isAnonymous = mockCredentials.isAnonymous();

        // Then
        assertTrue(isAnonymous);
        verify(mockCredentials).isAnonymous();
    }

    @Test
    @DisplayName("Should check for guest credentials")
    void testIsGuest() {
        // Given

    SmbTreeHandleImpl tree;

    private void stubValidTree(long treeId, boolean connected, boolean smb2) {
        lenient().when(tree.acquire()).thenReturn(tree);
        lenient().when(tree.getTreeId()).thenReturn(treeId);
        lenient().when(tree.isConnected()).thenReturn(connected);
        lenient().when(tree.isSMB2()).thenReturn(smb2);
    }

    @Test
    @DisplayName("Constructor with null tree throws NPE (byte[] fid variant)")

        when(ctx.getConfig()).thenReturn(config);
        when(config.getCapabilities()).thenReturn(0);
        when(config.getFlags2()).thenReturn(0);
        when(config.getMaxMpxCount()).thenReturn(1);
        when(config.getSendBufferSize()).thenReturn(4096);
        when(config.getReceiveBufferSize()).thenReturn(4096);
        when(config.getTransactionBufferSize()).thenReturn(4096);

            message.opnumValue = 5;

            when(mockBuffer.getIndex()).thenReturn(0).thenReturn(16).thenReturn(20).thenReturn(24);
            lenient().doNothing().when(mockBuffer).advance(anyInt());
            lenient().doNothing().when(mockBuffer).enc_ndr_long(anyInt());
            lenient().doNothing().when(mockBuffer).enc_ndr_short(anyInt());
            lenient().doNothing().when(mockBuffer).enc_ndr_small(anyInt());