assertSame(name1, name2); // Should be same instance
    }

    /**
     * Test searcher with simple class name.
     */
    @Test
    public void test_simpleClassNameSearcher() {
        final SimpleSearcher searcher = new SimpleSearcher();
        assertEquals("simple", searcher.getName());
    }

    /**
     * Test searcher extending another searcher.
     */
    @Test

    private static final Logger logger = LogManager.getLogger(DataStoreFactory.class);

    /**
     * Map containing registered data store instances indexed by their names and class simple names.
     * All keys are stored in lowercase for case-insensitive lookup.
     */
    protected Map<String, DataStore> dataStoreMap = new LinkedHashMap<>();

    /**

    @Test
    public void test_parse_quoted_values() {
        String value;
        String[] result;

        // Simple quoted value - quotes are removed
        value = "\"simple\"";
        result = KuromojiCSVUtil.parse(value);
        assertEquals(1, result.length);
        assertEquals("\"simple\"", result[0]);

        // Quoted value with comma - quotes are removed
        value = "\"value,with,commas\"";

 - [Salesforce](https://github.com/codelibs/fess-ds-salesforce)
 - [SharePoint](https://github.com/codelibs/fess-ds-sharepoint)
 - [Slack](https://github.com/codelibs/fess-ds-slack)

## Theme

 - [Simple](https://github.com/codelibs/fess-theme-simple)
 - [Classic](https://github.com/codelibs/fess-theme-classic)

## Ingest

 - [Logger](https://github.com/codelibs/fess-ingest-logger)
 - [NDJSON](https://github.com/codelibs/fess-ingest-ndjson)

    public QueryProcessor() {
        // Default constructor
    }

    private static final Logger logger = LogManager.getLogger(QueryProcessor.class);

    /**
     * Map of query commands indexed by query class simple names.
     * Used to lookup appropriate command handlers for different query types.
     */
    protected Map<String, QueryCommand> queryCommandMap = new HashMap<>();

    /**

 - [Salesforce](https://github.com/codelibs/fess-ds-salesforce)
 - [SharePoint](https://github.com/codelibs/fess-ds-sharepoint)
 - [Slack](https://github.com/codelibs/fess-ds-slack)

## Tema

 - [Simple](https://github.com/codelibs/fess-theme-simple)
 - [Classic](https://github.com/codelibs/fess-theme-classic)

## Ingesta

 - [Logger](https://github.com/codelibs/fess-ingest-logger)
 - [NDJSON](https://github.com/codelibs/fess-ingest-ndjson)

            @Override
            public String getAppCipherKey() {
                return "1234567890123456"; // 16 bytes for AES
            }
        });

        // Create test cipher - use proper constructor with simple implementation
        InvertibleCryptographer cookieCipher = new InvertibleCryptographer("AES", "1234567890123456", null) {
            @Override
            public String encrypt(String plainText) {

                // Ignore
            }
        });
    }

    @Test
    public void test_getThemeName() {
        Artifact artifact = new Artifact("fess-theme-simple", "1.0.0");
        String themeName = themeHelper.getThemeName(artifact);
        assertEquals("simple", themeName);
    }

    @Test
    public void test_getThemeName_multiPart() {
        Artifact artifact = new Artifact("fess-theme-elegant-modern", "1.0.0");

    public void test_constructor() {
        DataSerializer ds = new DataSerializer();
        assertNotNull(ds, "DataSerializer should be instantiable");
    }

    /**
     * Test serialization and deserialization of simple String
     */
    @Test
    public void test_serializeDeserialize_string() {
        String original = "Hello, World!";

        byte[] serialized = serializer.fromObjectToBinary(original);

     * Since DictionaryItem is abstract, we need a concrete class to test it.
     */
    private static class TestDictionaryItem extends DictionaryItem {
        // Simple concrete implementation for testing
    }