response = new Smb2QueryInfoResponse(mockConfig, (byte) 1, (byte) 2);

        // Use reflection to set the info field
        var infoField = Smb2QueryInfoResponse.class.getDeclaredField("info");
        infoField.setAccessible(true);
        infoField.set(response, mockDecodable);

        assertEquals(mockDecodable, response.getInfo());
    }

    @Test
    @DisplayName("Test getInfo with class type - matching class")

            Field closeFlagsField = Smb2CloseResponse.class.getDeclaredField("closeFlags");
            closeFlagsField.setAccessible(true);
            assertEquals(1, closeFlagsField.get(response));

            Field creationTimeField = Smb2CloseResponse.class.getDeclaredField("creationTime");
            creationTimeField.setAccessible(true);
            assertEquals(SMBUtil.readTime(buffer, 8), creationTimeField.get(response));

        // Access private field to verify length was set
        Field lengthField = response.getClass().getSuperclass().getSuperclass().getSuperclass().getDeclaredField("length");
        lengthField.setAccessible(true);
        int actualLength = (int) lengthField.get(response);

        assertEquals(expectedLength, actualLength);
    }

    @DisplayName("Test readParametersWireFormat with various lengths")

    @BeforeEach
    @AfterEach
    void resetSingleton() {
        try {
            Field instance = SingletonContext.class.getDeclaredField("INSTANCE");
            instance.setAccessible(true);
            instance.set(null, null);
        } catch (NoSuchFieldException | IllegalAccessException e) {
            log.error("Failed to reset SingletonContext instance", e);

     */
    private static void setField(Object target, String name, Object value) {
        try {
            Field f = target.getClass().getDeclaredField(name);
            f.setAccessible(true);
            f.set(target, value);
        } catch (Exception e) {
            fail("Failed to set field '" + name + "'", e);
        }
    }

    /**
     * Helper for getting a field via reflection.

    private static Object getField(Object target, String name) {
        try {
            var f = target.getClass().getDeclaredField(name);
            f.setAccessible(true);
            return f.get(target);
        } catch (Exception e) {
            fail("access field " + name, e);
            return null;
        }
    }

        // Then - verify command is set correctly using reflection
        Field commandField = ServerMessageBlock2.class.getDeclaredField("command");
        commandField.setAccessible(true);
        int command = (int) commandField.get(req);

        assertEquals(SMB2_TREE_DISCONNECT, command);
    }

    @Test
    @DisplayName("Should create proper response object")

        // Test createInfo private method with all supported levels
        Method createInfoMethod = Trans2QueryFSInformationResponse.class.getDeclaredMethod("createInfo");
        createInfoMethod.setAccessible(true);

        // Test SMB_INFO_ALLOCATION
        response = new Trans2QueryFSInformationResponse(config, FileSystemInformation.SMB_INFO_ALLOCATION);
        Object result = createInfoMethod.invoke(response);

            assertEquals(0x000D, request.getCommand());

            // Verify configuration is set
            Field configField = ServerMessageBlock2.class.getDeclaredField("config");
            configField.setAccessible(true);
            assertEquals(mockConfig, configField.get(request));
        }

        @Test
        @DisplayName("Should handle null configuration")
        void testConstructorWithNullConfig() {

        Class<?> cls = req.getClass().getSuperclass(); // ServerMessageBlock2Request
        Field f = cls.getSuperclass().getDeclaredField("next"); // ServerMessageBlock2.next
        f.setAccessible(true);
        return f.get(req);
    }

    /**
     * Reflectively set the private 'results' field on Smb2QueryDirectoryResponse.
     */