String id = SuggestUtil.createSuggestTextId(text);
        assertNotNull(id);
        assertEquals(Base64.getEncoder().encodeToString(text.getBytes(CoreLibConstants.CHARSET_UTF_8)), id);

        // Test empty text
        String emptyText = "";
        String emptyId = SuggestUtil.createSuggestTextId(emptyText);
        assertNotNull(emptyId);

        assertNotNull(results);
        // With multiple languages, should use ReadingConverterChain
    }

    @Test
    public void testConvertWithEmptyText() throws IOException {
        // Test convert with empty text
        String text = "";
        String field = "content";

        List<String> results = converter.convert(text, field, "en");

        assertNotNull(results);

                return "TestTransactionResponse";
            }
        };

        // When
        BufferCache.getBuffers(req, rsp);

        // Then
        assertNotNull(req.txn_buf, "Request buffer should be allocated");
        assertNotNull(rsp.txn_buf, "Response buffer should be allocated");
        assertEquals(SmbComTransaction.TRANSACTION_BUF_SIZE, req.txn_buf.length, "Request buffer should have correct size");

        // Test default constructor
        SuggestSettingsBuilder testBuilder = new SuggestSettingsBuilder();
        assertNotNull(testBuilder);
        assertEquals("fess_suggest", testBuilder.settingsIndexName);
        assertNotNull(testBuilder.timeoutSettings);
        assertNotNull(testBuilder.initialSettings);
        assertTrue(testBuilder.initialSettings.isEmpty());
    }

    @Test

        // Then
        assertNotNull(address, "Should return address for localhost");
    }

    @Test
    @DisplayName("Should handle IP address in getByName")
    void testGetByNameWithIPAddress() throws UnknownHostException {
        // When
        Address address = nameServiceClient.getByName("127.0.0.1");

        // Then
        assertNotNull(address, "Should return address for IP address");

        RdmaProvider provider = RdmaProviderFactory.selectBestProvider();
        assertNotNull(provider, "Should always select an RDMA provider (at minimum TCP fallback)");
        assertNotNull(provider.getProviderName(), "Provider name should not be null");
        assertNotNull(provider.getSupportedCapabilities(), "Supported capabilities should not be null");

                appendExceptionMethod = method;
                break;
            }
        }

        assertNotNull("Should inherit append method", appendMethod);
        assertNotNull("Should inherit appendTimestamp method", appendTimestampMethod);
        assertNotNull("Should inherit appendException method", appendExceptionMethod);
    }

        // Verify all expected states are present
        assertNotNull(WitnessRegistration.WitnessRegistrationState.REGISTERING);
        assertNotNull(WitnessRegistration.WitnessRegistrationState.REGISTERED);
        assertNotNull(WitnessRegistration.WitnessRegistrationState.UNREGISTERING);
        assertNotNull(WitnessRegistration.WitnessRegistrationState.FAILED);
        assertNotNull(WitnessRegistration.WitnessRegistrationState.EXPIRED);
    }

        // Verify all cache entries exist
        assertNotNull(directoryLeaseManager.getCacheEntry(dir1));
        assertNotNull(directoryLeaseManager.getCacheEntry(dir2));
        assertNotNull(directoryLeaseManager.getCacheEntry(dir3));

        // Verify different scopes

        assertNotNull(exception);
        assertNull(exception.getMessage());
        assertNull(exception.getCause());
    }

    /**
     * Test constructor with empty message
     */
    public void test_constructor_withEmptyMessage() {
        CrawlerSystemException exception = new CrawlerSystemException("");

        assertNotNull(exception);