f.setAccessible(true);
            f.set(c, val);
        } catch (Exception e) {
            throw new AssertionError(e);
        }
    }

    // Helper to build a minimal smb URL
    private static URL smbUrl(String spec) throws Exception {
        return new URL(null, spec, new Handler());
    }

    @Test
    @DisplayName("getConfig returns context config")
    void getConfig_returnsConfig() {

        // -1 == 0xFFFF
        int negativeSid = -1;
        SmbComFindClose2 neg = new SmbComFindClose2(mockConfig, negativeSid);
        byte[] dst = new byte[2];
        int written = neg.writeParameterWordsWireFormat(dst, 0);
        assertEquals(2, written);
        assertArrayEquals(new byte[] { (byte) 0xFF, (byte) 0xFF }, dst, "Negative sid should wrap to 0xFFFF");
    }

    @Test

            // Arrange
            rpc.uuid_t rpcUuid = new rpc.uuid_t();
            rpcUuid.time_low = 0;
            rpcUuid.time_mid = 0;
            rpcUuid.time_hi_and_version = 0;
            rpcUuid.clock_seq_hi_and_reserved = 0;
            rpcUuid.clock_seq_low = 0;
            rpcUuid.node = new byte[6];

            UUID uuid = new UUID(rpcUuid);

            // Act

        StringReader sReader = new StringReader(serializedModel);

        MavenStaxReader modelReader = new MavenStaxReader();
        try {
            model = new Model(modelReader.read(sReader));
        } catch (XMLStreamException e) {
            throw new ModelInterpolationException(

                    throw new PACDecodingException("Invalid number of SIDs in PAC expect" + extraSidCount + " have " + realExtraSidCount);
                }
                extraSidAtts = new PacSidAttributes[extraSidCount];
                final int[] pointers = new int[extraSidCount];
                final int[] attributes = new int[extraSidCount];
                for (int i = 0; i < extraSidCount; i++) {

        UniAddress uniAddress = new UniAddress(InetAddress.getByName("127.0.0.1"));
        SmbTransport transport = new SmbTransport(uniAddress, 445, null, 0);
        serverData = transport.new ServerData();
        response = new SmbComNegotiateResponse(serverData);
    }

    @Test
    void testReadParameterWordsWireFormat() {

    }

    @Test
    public void test_register_multipleAuthenticators() {
        TestSsoAuthenticator authenticator1 = new TestSsoAuthenticator();
        TestSsoAuthenticator authenticator2 = new TestSsoAuthenticator();
        TestSsoAuthenticator authenticator3 = new TestSsoAuthenticator();

        ssoManager.register(authenticator1);
        ssoManager.register(authenticator2);

        byte[] buffer = new byte[4];
        SMBUtil.writeInt2(input, buffer, 0);
        int result = SMBUtil.readInt2(buffer, 0);
        assertEquals(expected & 0xFFFF, result);
    }

    @ParameterizedTest
    @ValueSource(longs = { 0L, 1L, 0xFFFFFFFFL, 0x12345678L, 0x80000000L })
    void testWriteReadInt4RoundTrip(long input) {
        byte[] buffer = new byte[8];

        // v1-->v2
        graph.addEdge(v1, v2, new MetadataGraphEdge("1.1", true, null, null, 2, 1));
        graph.addEdge(v1, v2, new MetadataGraphEdge("1.2", true, null, null, 2, 2));

        // v1-->v3
        graph.addEdge(v1, v3, new MetadataGraphEdge("1.1", true, null, null, 2, 1));
        graph.addEdge(v1, v3, new MetadataGraphEdge("1.2", true, null, null, 4, 2));

        // v3-->v4

        void testReadParametersWireFormat() {
            byte[] buffer = new byte[10];
            int result = response.readParametersWireFormat(buffer, 0, 2);
            assertEquals(2, result);
        }

        @Test
        @DisplayName("Should write setup wire format")
        void testWriteSetupWireFormat() {
            byte[] buffer = new byte[100];
            int result = response.writeSetupWireFormat(buffer, 0);