NtStatus.NT_STATUS_SHARING_VIOLATION, NtStatus.NT_STATUS_INVALID_PARAMETER })
    @DisplayName("Should handle various NT status codes")
    void testVariousNTStatusCodes(int ntStatus) {
        // When
        SmbException exception = new SmbException(ntStatus, false);

        // Then
        assertNotNull(exception);

            assertEquals("application/octet-stream", mimeMap.getMimeType("doesnotexist"));
        }

        @Test
        @DisplayName("Should handle case insensitive extensions")
        void testCaseInsensitiveExtensions() throws IOException {
            assertEquals("application/pdf", mimeMap.getMimeType("PDF"));

    /**
     * Construct bind message
     *
     */
    public DcerpcBind() {
    }

    DcerpcBind(final DcerpcBinding binding, final DcerpcHandle handle) {
        this.binding = binding;
        this.max_xmit = handle.getMaxXmit();
        this.max_recv = handle.getMaxRecv();
        this.ptype = 11;
        this.flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
    }

    @Override
    public int getOpnum() {

    /**
     * Constructs a new DcerpcBind message.
     */
    public DcerpcBind() {
    }

    DcerpcBind(final DcerpcBinding binding, final DcerpcHandle handle) {
        this.binding = binding;
        max_xmit = handle.max_xmit;
        max_recv = handle.max_recv;
        ptype = 11;
        flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
    }

    @Override
    public int getOpnum() {
        return 0;
    }

        @NullAndEmptySource
        @DisplayName("Should handle null and empty FQDN in fixupHost")
        void testFixupHostWithNullAndEmpty(String fqdn) {
            // Test with mock
            doNothing().when(mockReferralData).fixupHost(fqdn);
            assertDoesNotThrow(() -> mockReferralData.fixupHost(fqdn));

            // Test with concrete implementation - fixupHost doesn't handle null fqdn
            if (fqdn == null) {

    }

    /**
     * Sets the context handle for the async notify request.
     *
     * @param contextHandle the context handle from registration
     */
    public void setContextHandle(byte[] contextHandle) {
        this.contextHandle = contextHandle != null ? contextHandle.clone() : null;
    }

    /**
     * Gets the context handle.
     *
     * @return the context handle
     */
    public byte[] getContextHandle() {

        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());
            assertEquals(mockPolicyHandle, message.handle);
        }

        @Test

        assertNull(transPeekNamedPipe.name);
    }

    @ParameterizedTest
    @ValueSource(ints = { 0, 1, -1, Integer.MAX_VALUE, Integer.MIN_VALUE, 0xFFFF })
    @DisplayName("Constructor should handle various FID values")
    void testConstructorWithVariousFids(int fid) {
        // Act
        transPeekNamedPipe = new TransPeekNamedPipe(mockConfig, TEST_PIPE_NAME, fid);

        // Assert

    }

    /**
     * Gets the context handle returned by the server.
     *
     * @return the context handle
     */
    public byte[] getContextHandle() {
        return contextHandle != null ? contextHandle.clone() : null;
    }

    /**
     * Sets the context handle.
     *
     * @param contextHandle the context handle
     */
    public void setContextHandle(byte[] contextHandle) {

            assertEquals(0, defaultBind.getOpnum(), "Default opnum should be 0");
        }

        @Test
        @DisplayName("Package constructor should initialize with binding and handle")
        void testPackageConstructor() throws Exception {
            // Given
            int maxXmit = 4096;
            int maxRecv = 4096;
            when(mockHandle.getMaxXmit()).thenReturn(maxXmit);