@Test
    @DisplayName("Default ctor: null message/cause and success status")
    void defaultConstructor_hasNullMessageAndCause_andDefaultStatus() {
        // Arrange & Act
        SMBSignatureValidationException ex = new SMBSignatureValidationException();

        // Assert
        assertNull(ex.getMessage(), "Default ctor should not set a message");

        LocaleUtil.setDefault(null);
    }

    /**
     * @throws Exception
     */
    @Test
    public void testErrorMessage_ja() throws Exception {
        // ## Arrange ##
        Locale.setDefault(Locale.JAPANESE);
        final SQLException sqlException = new SQLException("some reason", "fooState", 7650);
        final SQLException sqlException2 = new SQLException("hoge reason", "barState", 7660);

        when(tree.getConfig()).thenReturn(config);
        when(config.getMaximumBufferSize()).thenReturn(65535);
        when(config.getListSize()).thenReturn(65535);

        // Arrange: initial page with two entries, then one more entry, then no more files
        FileEntry fe1 = mock(FileEntry.class);
        lenient().when(fe1.getName()).thenReturn("file1");

        return new SmbPipeHandleImpl(pipe);
    }

    @Test
    @DisplayName("ensureTreeConnected acquires and reuses the tree handle")
    void ensureTreeConnected_acquireAndReuse() throws Exception {
        // Arrange
        SmbPipeHandleImpl handle = newHandleWithBasicStubs(0, "\\\\pipe\\\\test");
        when(pipe.ensureTreeConnected()).thenReturn(tree);
        when(tree.acquire()).thenReturn(tree);

        // Act

        }
        throw new NoSuchFieldException(name);
    }

    @Test
    @DisplayName("getResponseTimeout returns override for SMB requests")
    void getResponseTimeout_override() {
        // Arrange
        CommonServerMessageBlockRequest req = mock(CommonServerMessageBlockRequest.class);
        when(req.getOverrideTimeout()).thenReturn(1234);

        // Act
        int timeout = transport.getResponseTimeout(req);

    @Test
    @DisplayName("Default constructor yields REQUIRED Krb5 entry with empty options")
    void defaultConstructor_producesRequiredKrb5EntryWithEmptyOptions() {
        // Arrange
        StaticJAASConfiguration cfg = new StaticJAASConfiguration();

        // Act
        AppConfigurationEntry[] entries = cfg.getAppConfigurationEntry("ignored");

        // Assert

            return 0;
        }
    }

    @Test
    @DisplayName("Happy path: iterates and adapts entries without filter")
    void happyPath_noFilter_returnsAdaptedResources() throws Exception {
        // Arrange: two valid entries
        setupParentForUrlCreation();
        StubFileEntry e1 = new StubFileEntry("SERVER1", SmbConstants.TYPE_SERVER);
        StubFileEntry e2 = new StubFileEntry("SERVER2", SmbConstants.TYPE_SERVER);

    class BasicTests {

        @Test
        @DisplayName("Textual constructor happy path and toString consistency")
        void testTextualConstructorAndToString() throws Exception {
            // Arrange
            SID sid = new SID("S-1-5-21-1-2-3-1029");

            // Act & Assert
            // toString should reconstruct exact textual form
            assertEquals("S-1-5-21-1-2-3-1029", sid.toString());

        } catch (java.io.IOException e) {
            throw new RuntimeException(e);
        }
    }

    @Test
    @DisplayName("Parses a valid buffer and exposes fields")
    void parseValidBuffer() {
        // Arrange
        String name = "******@****.***";
        byte[] buf = buildBuffer(oidDer(), name.getBytes(StandardCharsets.US_ASCII));

        // Act
        MIEName parsed = new MIEName(buf);

        // Assert

        }
    }

    /**
     * Test that the constructor initializes all fields correctly
     */
    @Test
    public void testConstructor() {
        // Arrange
        int fid = 0x1234;
        int offset = 100;
        int remaining = 50;
        byte[] buffer = new byte[100];
        int off = 10;
        int len = 40;

        // Act