System.setErr(new PrintStream(errContent));

            String[] args = { "--help" };
            // Note: main calls System.exit, so we can't test it directly
            // Instead, we test the parsing logic separately

            System.setErr(originalErr);
        } catch (Exception e) {
            System.setErr(originalErr);
        }
    }

func (s *Scanner) advance(n int) bool {
	if n < 0 {
		s.setErr(ErrNegativeAdvance)
		return false
	}
	if n > s.end-s.start {
		s.setErr(ErrAdvanceTooFar)
		return false
	}
	s.start += n
	return true
}

// setErr records the first error encountered.
func (s *Scanner) setErr(err error) {
	if s.err == nil || s.err == io.EOF {
		s.err = err
	}
}

        errContent = new ByteArrayOutputStream();
        System.setOut(new PrintStream(outContent));
        System.setErr(new PrintStream(errContent));
    }

    @AfterEach
    void restoreStreams() {
        System.setOut(originalOut);
        System.setErr(originalErr);
    }

    @Test
    @DisplayName("TestLocking fields are properly initialized")
    void testFieldInitialization() {

        // Reset LogStream instance using reflection
        resetLogStreamInstance();
    }

    @AfterEach
    void tearDown() throws Exception {
        // Restore original state
        System.setErr(originalErr);
        LogStream.level = originalLevel;
        // Reset instance using reflection
        resetLogStreamInstance();
    }

    private void resetLogStreamInstance() throws Exception {

        PrintStream originalErr = System.err;
        System.setErr(new PrintStream(errContent));

        try {
            String[] args = { "--invalidOption", "value" };
            Crawler.main(args);

            String error = errContent.toString();
            assertTrue(error.contains("invalidOption"));
        } finally {
            System.setErr(originalErr);
        }
    }

    // Test doCrawl method

	cancel context.CancelFunc
}

func (m *metaCacheRPC) setErr(err string) {
	m.mu.Lock()
	defer m.mu.Unlock()
	meta := *m.meta
	if meta.status != scanStateError {
		meta.error = err
		meta.status = scanStateError
	} else {
		// An error is already set.
		return
	}
	meta, _ = m.o.updateMetacacheListing(meta, m.rpc)
	*m.meta = meta
}

// getErr will return an error if the listing failed.

	// Save listing...
	go func() {
		if err := saver.saveMetaCacheStream(listCtx, &meta, saveCh); err != nil {
			meta.setErr(err.Error())
		}
		cancel()
	}()

	// Do listing...
	go func(o listPathOptions) {
		err := z.listMerged(listCtx, o, inCh)
		if err != nil {
			meta.setErr(err.Error())
		}
		o.debugln("listAndSave: listing", o.ID, "finished with ", err)
	}(*o)

            System.setOut(new PrintStream(outStream, true));
            final PrintStream originalErrStream = System.err;
            final ByteArrayOutputStream errStream = new ByteArrayOutputStream();
            System.setErr(new PrintStream(errStream, true));
            try {
                final String resourceName = params == null ? null : params.get(ExtractData.RESOURCE_NAME_KEY);

        // Set to false
        request.setResolveInDfs(false);
        assertFalse(request.isResolveInDfs());
    }

    @Test
    @DisplayName("Test security flags setter")
    void testSetSecurityFlags() {
        request = new Smb2CreateRequest(mockConfig, "test.txt");

        request.setSecurityFlags((byte) 0x01);
        // Verify through writeBytesWireFormat

     */
    public void test_transform_implementation() {
        testTransformer.setName("myTransformer");

        ResponseData responseData = new ResponseData();
        responseData.setUrl("http://example.com");

        ResultData resultData = testTransformer.transform(responseData);

        assertNotNull(resultData);
        assertEquals("myTransformer", resultData.getTransformerName());