@Test
    @DisplayName("areSignaturesActive(): returns configured boolean false")
    void areSignaturesActive_false() throws Exception {
        // Arrange
        when(handle.areSignaturesActive()).thenReturn(false);

        // Act
        boolean result = handle.areSignaturesActive();

        // Assert
        assertFalse(result);
        verify(handle).areSignaturesActive();
    }

    @Test

     * @return whether the session uses SMB signing
     * @throws CIFSException if a general CIFS error occurs
     * @throws SmbException if an SMB-specific error occurs
     */
    boolean areSignaturesActive() throws CIFSException;

    /**
     * Internal/testing use only
     *
     * @return attached session
     */
    SmbSession getSession();

                        Math.min(th.getConfig().getReceiveBufferSize() - 70, th.areSignaturesActive() ? 0xFFFF - 70 : 0xFFFFFF - 70);
            }

            // there seems to be a bug with some servers that causes corruption if using signatures + CAP_LARGE_WRITE
            if (th.hasCapability(SmbConstants.CAP_LARGE_WRITEX) && !th.areSignaturesActive()) {

            return transport.getNegotiateResponse().getTransactionBufferSize();
        }
    }

    @Override
    public boolean areSignaturesActive() throws SmbException {
        try (SmbSessionImpl session = this.treeConnection.getSession(); SmbTransportImpl transport = session.getTransport()) {
            return transport.getNegotiateResponse().isSigningNegotiated();

            when(mockTree.isSMB2()).thenReturn(false);
            when(mockTree.hasCapability(SmbConstants.CAP_LARGE_READX)).thenReturn(true);
            when(mockTree.areSignaturesActive()).thenReturn(false);
            when(mockConfig.getReceiveBufferSize()).thenReturn(0x200000); // large to allow big block size
            when(mockTree.getReceiveBufferSize()).thenReturn(0x200000);

        assertEquals(1111, handle.getSendBufferSize());
        assertEquals(2222, handle.getReceiveBufferSize());
        assertEquals(3333, handle.getMaximumBufferSize());
        assertTrue(handle.areSignaturesActive());

        verify(session, times(4)).close();
        verify(transport, times(4)).close();
    }

    @Test
    @DisplayName("isSMB2 true and exception fallback to false")

        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);
        when(tree.isSMB2()).thenReturn(smb2);

        when(file.openUnshared(anyInt(), anyInt(), anyInt(), anyInt(), anyInt())).thenReturn(fh);
        when(fh.acquire()).thenReturn(fh);

        }

        // there seems to be a bug with some servers that causes corruption if using signatures +
        // CAP_LARGE_WRITE
        if (th.hasCapability(SmbConstants.CAP_LARGE_WRITEX) && !th.areSignaturesActive()) {
            this.writeSizeFile = Math.min(th.getConfig().getSendBufferSize() - 70, 0xFFFF - 70);
        } else {
            log.debug("No support or SMB signing is enabled, not enabling large writes");

        if (th.hasCapability(SmbConstants.CAP_LARGE_READX)) {
            this.largeReadX = true;
            this.readSizeFile =
                    Math.min(th.getConfig().getReceiveBufferSize() - 70, th.areSignaturesActive() ? 0xFFFF - 70 : 0xFFFFFF - 70);
            log.debug("Enabling LARGE_READX with " + this.readSizeFile);
        } else {
            log.debug("LARGE_READX disabled");
            this.readSizeFile = this.readSize;