when(sitemapsHelper.parse(any(InputStream.class))).thenReturn(sitemapSet);
        } catch (Exception e) {
            fail("Should not throw exception in test setup");
        }

        // Execute and verify ChildUrlsException is thrown
        try {
            processor.process(responseData);
            fail("Should throw ChildUrlsException");
        } catch (ChildUrlsException e) {
            // Expected exception

        // First call should fail (no project ID set)
        try {
            conn.connect();
            fail("Should throw IOException");
        } catch (IOException e) {
            assertTrue(e.getMessage().contains("GCS_PROJECT_ID is blank"));
        }

        // Second call should also fail with the same error
        try {
            conn.connect();

        // Then: Should connect to IPC$ share
        verify(tree).connectLogon(ctx);
    }

    @Test
    @DisplayName("Should sort addresses by fail count and failover")
    void testFailoverWithFailCounts() throws Exception {
        // Given: Multiple addresses with different fail counts
        Address addr1 = mock(Address.class);
        when(addr1.getHostAddress()).thenReturn("10.0.0.1");

            fail();
        } catch (ChildUrlsException e) {
            String[] values = e.getChildUrlList().stream().map(d -> d.getUrl()).sorted().toArray(n -> new String[n]);
            assertEquals(0, values.length);
        }
        try (final ResponseData responseData = s3Client.doGet("")) {
            fail();
        } catch (CrawlerSystemException e) {
            // nothing

            extractor.testValidateInputStream(null);
            fail("Expected CrawlerSystemException");
        } catch (final CrawlerSystemException e) {
            // Verify it's exactly CrawlerSystemException, not a subclass
            assertEquals("Should throw CrawlerSystemException", CrawlerSystemException.class, e.getClass());
        } catch (final Exception e) {
            fail("Should throw CrawlerSystemException, not " + e.getClass().getName());

        } catch (IllegalArgumentException e) {
            fail();
        }

        try {
            settings.badword().add("");
            fail();
        } catch (IllegalArgumentException e) {
            assertTrue(true);
        }

        try {
            settings.badword().add("aaaa bbb");
            fail();
        } catch (IllegalArgumentException e) {
            assertTrue(true);

        try {
            response.getContentAsStream();
            fail("Expected CurlException");
        } catch (CurlException e) {
            assertTrue(e.getMessage().contains("The content does not exist"));
            assertSame(exception, e.getCause());
        } catch (IOException e) {
            fail("Should throw CurlException, not IOException");
        }
    }

    @Test

        try {
            client.checkMaxContentLength(responseData);
            fail();
        } catch (MaxLengthExceededException e) {
            // ok
        }

        responseData.setContentLength(1000000000L);
        try {
            client.checkMaxContentLength(responseData);
            fail();
        } catch (MaxLengthExceededException e) {
            // ok
        }

        // Arrange
        SmbPipeOutputStream out = newStream();
        CIFSException boom = new CIFSException("tree-fail");
        when(handle.ensureTreeConnected()).thenThrow(boom);

        // Act + Assert
        CIFSException ex = assertThrows(CIFSException.class, out::ensureTreeConnected);
        assertEquals("tree-fail", ex.getMessage());
        verify(handle, times(1)).ensureTreeConnected();
    }

    @Test

    @Test
    public void testFailureThresholdOpensCircuit() {
        // Fail 3 times to open circuit
        for (int i = 0; i < 3; i++) {
            final int index = i;
            try {
                circuitBreaker.executeWithCircuitBreaker(() -> {
                    throw new RuntimeException("Test failure " + index);
                });
                fail("Should have thrown exception");
            } catch (CIFSException e) {