when(mockRequest.getCommand()).thenReturn((int) ServerMessageBlock.SMB_COM_WRITE);

        digest.sign(data, 0, data.length, mockRequest, mockResponse);

        verify(mockRequest).setSignSeq(10);
        verify(mockResponse).setSignSeq(11);
    }

    @Test
    @DisplayName("Test sign method with bypass enabled")
    void testSignWithBypass() {

        if (log.isTraceEnabled()) {
            log.trace("Signing with seq " + this.signSequence);
        }

        ((ServerMessageBlock) request).setSignSeq(this.signSequence);
        if (response != null) {
            ((ServerMessageBlock) response).setSignSeq(this.signSequence + 1);
        }

        try {
            update(this.macSigningKey, 0, this.macSigningKey.length);

        return this.signSeq;
    }

    /**
     * Sets the signature sequence number
     * @param signSeq
     *            the signSeq to set
     */
    public final void setSignSeq(final int signSeq) {
        this.signSeq = signSeq;
    }

    /**
     * @return the verifyFailed
     */
    @Override
    public boolean isVerifyFailed() {
        return this.verifyFailed;