String name = "param-name_123!@#";
        String[] values = { "value with spaces", "value@special#chars", "日本語" };
        RequestParameter param = new RequestParameter(name, values);

        assertEquals(name, param.getName());
        assertNotNull(param.getValues());
        assertEquals(3, param.getValues().length);
        assertEquals("value with spaces", param.getValues()[0]);

            System.clearProperty(Constants.FESS_CONFIG_PREFIX + testKey);
        }
    }

    // Test property with spaces
    @Test
    public void test_get_propertyWithSpaces() {
        String testKey = "property.with.spaces";
        String valueWithSpaces = "  value with spaces  ";
        System.setProperty(Constants.FESS_CONFIG_PREFIX + testKey, valueWithSpaces);

        try {

        @SuppressWarnings("unchecked")
        final Map<String, StateData> states = (Map<String, StateData>) session.getAttribute(STATES);
        if (states != null) {
            final long now = ComponentUtil.getSystemHelper().getCurrentTimeAsLong();
            states.entrySet()
                    .stream()

    @Test
    public void test_base64_encoding_decoding() {
        // Test that base64 encoding and decoding works correctly
        String originalString = "test field with spaces";
        String encoded = BaseEncoding.base64().encode(originalString.getBytes(StandardCharsets.UTF_8));
        String decoded = new String(BaseEncoding.base64().decode(encoded), StandardCharsets.UTF_8);

    default String[] getCrawlerDocumentSpaces() {
        String[] spaces = (String[]) propMap.get(CRAWLER_DOCUMENT_SPACES);
        if (spaces == null) {
            spaces = Arrays.stream(getCrawlerDocumentSpaceCharsAsArray()).mapToObj(Character::toString).toArray(n -> new String[n]);
            propMap.put(CRAWLER_DOCUMENT_SPACES, spaces);
        }
        return spaces;
    }

    }

    @Test
    public void test_getDetectText_whitespaceNormalization() {
        String text = "Text   with\tmultiple\n\r  spaces";
        String result = languageHelper.getDetectText(text);
        assertEquals("Text with multiple spaces", result);
    }

    @Test
    public void test_getSupportedLanguage_supported() {
        assertEquals("ja", languageHelper.getSupportedLanguage("ja"));

                return cryptedText.startsWith("encrypted:") ? cryptedText.substring("encrypted:".length()) : cryptedText;
            }
        };

        String[] testStrings = { "simple", "with spaces", "special!@#$%^&*()", "unicode_test", "", "very long string " + "x".repeat(100) };

        for (String testStr : testStrings) {
            String encrypted = cipher.encrypt(testStr);

        assertEquals("test_suffix", execJob.logSuffix);
        assertSame(execJob, result);

        // Test with leading/trailing spaces
        result = execJob.logSuffix("  another suffix  ");
        assertEquals("another_suffix", execJob.logSuffix);

        // Test with multiple spaces
        result = execJob.logSuffix("multi  space  suffix");
        assertEquals("multi__space__suffix", execJob.logSuffix);
    }

    public void test_add_whitespaceInName() {
        TestScriptEngine engine = new TestScriptEngine();
        scriptEngineFactory.add("  test  ", engine);

        // Should be stored with lowercase and original spaces
        ScriptEngine retrieved = scriptEngineFactory.getScriptEngine("  test  ");
        assertNotNull(retrieved);
        assertEquals(engine, retrieved);
    }

    @Test
    public void test_special_characters_in_paths() throws Exception {
        final File tempDir = new File(System.getProperty("java.io.tmpdir"));
        final File outputFile = new File(tempDir, "test file with spaces.out");

        try {
            generator.setCommandList(Collections.singletonList("echo test"));
            generator.generate("test_id", outputFile);