// Test with whitespace around keys and values
        value = "  key1  =  value1  \n  key2=value2\n";
        paramMap = ParameterUtil.parse(value);
        assertEquals(2, paramMap.size());
        assertEquals("value1", paramMap.get("key1"));
        assertEquals("value2", paramMap.get("key2"));

        // Test with empty lines and mixed whitespace
        value = "key1=value1\n\n\t\nkey2=value2\n \n";

                "word1\n" + "  \n" + // whitespace line (may be treated as content)
                "# Another comment\n" + "word2\n";

        // Write content to test file
        writeTestFile(content);

        // Reload and verify
        protwordsFile.reload(null);

        PagingList<ProtwordsItem> result = protwordsFile.selectList(0, 10);
        // Whitespace-only lines may be treated as entries

    public void test_buildDefaultUrl_whitespaceProperty() throws Exception {
        // Test that whitespace-only property falls back to default
        SamlAuthenticator authenticator = new SamlAuthenticator();

        DynamicProperties systemProperties = ComponentUtil.getSystemProperties();
        try {
            // Set whitespace-only base URL
            systemProperties.setProperty("saml.sp.base.url", "   ");

        assertNull(exception.getCause());
    }

    @Test
    public void test_constructor_withWhitespaceType() {
        // Test constructor with whitespace in type
        String type = "  Bearer Token  ";
        String message = "Whitespace in token type";
        InvalidAccessTokenException exception = new InvalidAccessTokenException(type, message);

        assertEquals("  Bearer Token  ", exception.getType());

        tags = PrunedTag.parse(null);
        assertEquals(0, tags.length);

        // Test whitespace only
        tags = PrunedTag.parse("   ");
        assertEquals(0, tags.length);

        // Test commas only
        tags = PrunedTag.parse(",,,");
        assertEquals(0, tags.length);

        // Test mixed whitespace and commas
        tags = PrunedTag.parse(" , , , ");
        assertEquals(0, tags.length);
    }

        return redirect(getClass()); // no-op
    }

    /**
     * Sanitizes a filename by removing path traversal sequences and whitespace.
     *
     * @param filename the filename to sanitize
     * @return the sanitized filename
     */
    public static String sanitizeFilename(final String filename) {

        assertEquals(ChatIntent.UNCLEAR, ChatIntent.fromValue(null));
    }

    @Test
    public void test_fromValue_empty() {
        // Defaults to UNCLEAR when value is empty or whitespace
        assertEquals(ChatIntent.UNCLEAR, ChatIntent.fromValue(""));
        assertEquals(ChatIntent.UNCLEAR, ChatIntent.fromValue("   "));
    }

    @Test
    public void test_fromValue_unknown() {

        RescorerBuilder<?> result = ltrQueryRescorer.evaluate(params);
        assertNull(result);
    }

    @Test
    public void test_evaluate_withWhitespaceModelName() {
        // Test when model name contains only whitespace
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            @Override
            public String getLtrModelName() {
                return "   ";
            }

            @Override

        assertEquals("", basePath);

        basePath = virtualHostHelper.getVirtualHostBasePath("  ", new HtmlNext("/test"));
        assertEquals("", basePath); // StringUtil.isBlank considers whitespace as blank
    }

    @Test
    public void test_getVirtualHostKey() {
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;

        item.setNewInput(newSpecialInput);
        assertEquals(newSpecialInput, item.toLineString());
    }

    @Test
    public void test_whitespaceHandling() {
        // Test with various whitespace
        StopwordsItem item1 = new StopwordsItem(1, " ");
        assertEquals(" ", item1.getInput());
        assertEquals(" ", item1.toLineString());

        StopwordsItem item2 = new StopwordsItem(2, "\t\n\r");