@Mock
    private CommonServerMessageBlock serverMessageBlock;

    @Mock
    private Response response;

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
    }

    @Test
    @DisplayName("Test isValid returns true for valid negotiation")
    void testIsValidReturnsTrue() {
        // Arrange
        when(negotiationResponse.isValid(cifsContext, negotiationRequest)).thenReturn(true);

        }

        // Test control methods
        public void setState(int state) {
            this.state = state;
        }

        public void setPeekedKey(Long key) {
            this.peekedKey = key;
        }

        public void setSendException(IOException e) {
            this.sendException = e;
        }

        public void setRecvException(IOException e) {
            this.recvException = e;

        void testSmb2HeaderLength() {
            assertEquals(64, Smb2Constants.SMB2_HEADER_LENGTH, "SMB2 header must be exactly 64 bytes");
        }
    }

    @Nested
    @DisplayName("Negotiation Constants")
    class NegotiationConstants {

        @Test
        @DisplayName("Signing enabled flag should be 0x0001")
        void testSigningEnabledFlag() {

    }

    public void setBusinessCategory(String value) {
        registerModifiedProperty("businessCategory");
        this.businessCategory = value;
    }

    public String getCarLicense() {
        checkSpecifiedProperty("carLicense");
        return convertEmptyToNull(carLicense);
    }

    public void setCarLicense(String value) {

        assertEquals(0, response.serverFid);
    }

    @Test
    void testSetFid() {
        response.fid = 123;
        assertEquals(123, response.fid);
    }

    @Test
    void testSetFileAttributes() {
        response.fileAttributes = 0x20; // ATTR_ARCHIVE
        assertEquals(0x20, response.fileAttributes);
    }

    @Test
    void testSetLastWriteTime() {
        long time = System.currentTimeMillis();

    private SID mockDomainSid;

    private String testServerName;
    private SID[] testSids;

    @BeforeEach
    void setUp() {
        testServerName = "test-server.domain.com";
        testSids = new SID[] { mockSid1, mockSid2, mockSid3 };
    }

    // Test resolveSids with array
    @Test
    void testResolveSids_Success() throws CIFSException {

  }

  private static void checkSha1(String expected, byte[] key, String data) {
    checkSha1(expected, key, data.getBytes(UTF_8));
  }

  private static void checkSha1(String expected, byte[] key, byte[] data) {
    checkHmac(expected, Hashing.hmacSha1(key), data);
  }

  private static void checkMd5(String expected, byte[] key, String data) {

        @Test
        @DisplayName("Should have correct SMB_INFO_ALLOCATION constant value")
        void testSmbInfoAllocationConstant() {
            assertEquals((byte) -1, FileSystemInformation.SMB_INFO_ALLOCATION);
        }

        @Test
        @DisplayName("Should have correct FS_SIZE_INFO constant value")
        void testFsSizeInfoConstant() {
            assertEquals((byte) 3, FileSystemInformation.FS_SIZE_INFO);
        }

   */
  @Test
  public abstract void incidentEdges_checkReturnedSetMutability();

  @Test
  public void nodes_oneNode() {
    addNode(N1);
    assertThat(graph.nodes()).containsExactly(N1);
  }

  @Test
  public void nodes_noNodes() {
    assertThat(graph.nodes()).isEmpty();
  }

  @Test
  public void adjacentNodes_oneEdge() {
    putEdge(N1, N2);

        private String description;

        public void setModelVersion(String modelVersion) {
            this.modelVersion = modelVersion;
        }

        public void setGroupId(String groupId) {
            this.groupId = groupId;
        }

        public void setScm(Scm scm) {
            this.scm = scm;
        }

        public void addDependency(Dependency dependency) {