byte[] testGuid = new byte[16];
        for (int i = 0; i < 16; i++) {
            testGuid[i] = (byte) (i + 1);
        }
        System.arraycopy(testGuid, 0, buffer, bufferIndex + 4, 16);

        // Set security mode (2 bytes)
        int testSecurityMode = 0x0003;
        SMBUtil.writeInt2(testSecurityMode, buffer, bufferIndex + 20);

        // Set dialect (2 bytes)

            assertEquals(4 + 6 + 32, context.size()); // header + 3*2 + 32

            context = new PreauthIntegrityNegotiateContext(mockConfig, null, new byte[16]);
            assertEquals(4 + 16, context.size());

            context = new PreauthIntegrityNegotiateContext(mockConfig, new int[5], null);
            assertEquals(4 + 10, context.size());
        }

        @Test

        assertEquals(0, restrictions.size(), CHECK_NUM_RESTRICTIONS);

        range1 = VersionRange.createFromVersionSpec("[1.0,1.2],[1.3,1.5]");
        range2 = VersionRange.createFromVersionSpec("[1.1,1.4],[1.6,]");
        mergedRange = range1.restrict(range2);
        assertNull(mergedRange.getRecommendedVersion(), CHECK_VERSION_RECOMMENDATION);
        restrictions = mergedRange.getRestrictions();

     * @param i
     *            the number to convert
     */
    public static void appendHex(final StringBuilder buf, final byte i) {
        buf.append(Character.forDigit((i & 0xf0) >> 4, 16));
        buf.append(Character.forDigit(i & 0x0f, 16));
    }

    /**
     * Appends the hexadecimal string representation of a number to the given StringBuilder.
     *
     * @param buf