byte[] blob = blobCred();
        SmbComSessionSetupAndX obj = new SmbComSessionSetupAndX(mockContext, mockNegotiate, mockAndX, blob);
        byte[] buf = new byte[256];
        int len = invokeProtectedInt(obj, "writeParameterWordsWireFormat", buf, 0);

        // Expected size: 2 (sendBuffer) + 2 (mpxCount) + 2 (vcNumber) + 4 (sessionKey) + 2 (blob length) + 4 (reserved) + 4 (capabilities)