assertEquals(expectedUuid, actualUuid, "DCERPC_UUID_SYNTAX_NDR should have the correct UUID value");
        }
    }

    @Nested
    @DisplayName("Fragment Flag Constants Tests")
    class FragmentFlagTests {

        @Test
        @DisplayName("DCERPC_FIRST_FRAG should have correct value")
        void testDcerpcFirstFrag() {

        @Test
        @DisplayName("Should return correct transport context")
        void testGetTransportContext() throws Exception {
            DcerpcPipeHandle handle = createMockedDcerpcPipeHandle();
            assertEquals(mockContext, handle.getTransportContext());
        }

        @Test
        @DisplayName("Should return correct server name")
        void testGetServer() throws Exception {

    class SamrCloseHandleTests {

        @Test
        @DisplayName("Should construct with correct opnum")
        void testConstructorAndOpnum() {
            // When: Creating close handle message
            samr.SamrCloseHandle message = new samr.SamrCloseHandle(mockPolicyHandle);

            // Then: Should have correct opnum and handle
            assertEquals(0x01, message.getOpnum());

    class SamrCloseHandleTests {

        @Test
        @DisplayName("Should construct with correct opnum")
        void testConstructorAndOpnum() {
            // When: Creating close handle message
            samr.SamrCloseHandle message = new samr.SamrCloseHandle(mockPolicyHandle);

            // Then: Should have correct opnum and handle
            assertEquals(0x01, message.getOpnum());

        @Test
        @DisplayName("Should create correct response type")
        void testCreateResponse() {
            Smb2EchoResponse response = echoRequest.createResponse(mockContext, echoRequest);

            assertNotNull(response);
            assertInstanceOf(Smb2EchoResponse.class, response);
        }

        @Test
        @DisplayName("Should create response with correct configuration")

                    "Should return correct message for error 1");
            assertEquals("DCERPC_BIND_ERR_PROPOSED_TRANSFER_SYNTAXES_NOT_SUPPORTED", getResultMessageMethod.invoke(null, 2),
                    "Should return correct message for error 2");
            assertEquals("DCERPC_BIND_ERR_LOCAL_LIMIT_EXCEEDED", getResultMessageMethod.invoke(null, 3),
                    "Should return correct message for error 3");
        }

    }

    @Test
    @DisplayName("createResponse should return Smb2FlushResponse with correct config")
    void testCreateResponse() throws Exception {
        Smb2FlushResponse response = request.createResponse(mockContext, request);

        assertNotNull(response);

        // Verify response has correct config
        Field configField = ServerMessageBlock2.class.getDeclaredField("config");

    class InterfaceConstantsTests {

        @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() {

            // Then
            assertEquals(currentTime, lastModified, "Should return correct last modified time");
            assertEquals(currentTime - 1000, lastAccess, "Should return correct last access time");
            assertEquals(currentTime - 2000, createTime, "Should return correct create time");
            assertTrue(createTime <= lastAccess, "Create time should be before or equal to last access");

        byte[] src = "Test".getBytes();

        // Test with non-null source array
        int nextOffset = NtlmMessage.writeSecurityBuffer(dest, 0, src);
        assertEquals(4, nextOffset, "Should return correct next offset.");
        assertEquals(src.length, NtlmMessage.readUShort(dest, 0), "Length should be written correctly.");
        assertEquals(src.length, NtlmMessage.readUShort(dest, 2), "Max length should be written correctly.");