assertNotNull(deleteRequest);
        assertNotNull(headRequest);
        assertNotNull(optionsRequest);
        assertNotNull(connectRequest);
    }

    @Test
    public void test_FactoryMethodsWithSpecialCharactersInUrl() {
        // ## Test factory methods with special characters in URL ##

        // ## Act ##
        final String specialUrl = "http://example.com/path?query=value&param=123#fragment";