System.arraycopy(ctxBytes, 0, packet, ctxOffsetFromHeader, ctxBytes.length);
        }
        return packet;
    }

    @Test
    void decode_basic_noContexts() throws Exception {
        Configuration config = Mockito.mock(Configuration.class);
        Smb2CreateResponse resp = new Smb2CreateResponse(config, "file.txt");

        byte[] fileId = new byte[16];