url = "file:/" + encodeUrl("ホーム") + "/user";
        exp = "localhost";
        assertEquals(exp, transformer.getHostOnFile(url));

        url = "file:/c:/" + encodeUrl("ホーム") + "/user";
        exp = "localhost";
        assertEquals(exp, transformer.getHostOnFile(url));

        url = "file:////" + encodeUrl("サーバー") + "/home/user";
        exp = "サーバー";

        assertEquals("test#value", DocumentUtil.encodeUrl("test#value"));
    }

    public void test_encodeUrl_already_encoded() {
        assertEquals("hello", DocumentUtil.encodeUrl("hello"));
        assertEquals("hello-world", DocumentUtil.encodeUrl("hello-world"));
        assertEquals("hello_world", DocumentUtil.encodeUrl("hello_world"));

        assertEquals(result, htmlTransformer.encodeUrl(url, "UTF-8"));

        url = ".-*_:/+%=&?#[]@~!$'(),;";
        result = ".-*_:/+%=&?#[]@~!$'(),;";
        assertEquals(result, htmlTransformer.encodeUrl(url, "UTF-8"));
    }

    public void test_isSupportedCharset_valid() {

            final URL childUrl =
                    childUrlValue.startsWith("?") ? new URL(url.toExternalForm() + childUrlValue) : new URL(url, childUrlValue);
            final String u = encodeUrl(normalizeUrl(childUrl.toExternalForm()), encoding);
            if (logger.isDebugEnabled()) {
                logger.debug("{} -> {}", attrValue, u);
            }
            if (StringUtil.isNotBlank(u)) {

        }

        @Override
        public boolean containsHeader(String name) {
            return headers.containsKey(name);
        }

        @Override
        public String encodeURL(String url) {
            return url;
        }

        @Override
        public String encodeRedirectURL(String url) {
            return url;
        }

        @Override

        }

        @Override
        public boolean containsHeader(String name) {
            return false;
        }

        @Override
        public String encodeURL(String url) {
            return url;
        }

        @Override
        public String encodeRedirectURL(String url) {
            return url;
        }

        @Override

            }

            @Override
            public boolean containsHeader(String name) {
                return false;
            }

            @Override
            public String encodeURL(String url) {
                return null;
            }

            @Override
            public String encodeRedirectURL(String url) {
                return null;
            }

            }

            @Override
            public boolean containsHeader(String name) {
                return false;
            }

            @Override
            public String encodeURL(String url) {
                return url;
            }

            @Override
            public String encodeRedirectURL(String url) {
                return url;
            }

                }
            } catch (final ExecutionException e) {
                logger.debug("Failed to access {}", input, e);
            }
        }
        return LaResponseUtil.getResponse().encodeURL(sb.toString());
    }

    /**
     * Encodes a string for similar document hash processing.
     *
     * @param input the string to encode
     * @return encoded string, or the original input if blank

  - reference/middleware.md
  - OpenAPI:
    - reference/openapi/index.md
    - reference/openapi/docs.md
    - reference/openapi/models.md
  - reference/security/index.md
  - reference/encoders.md
  - reference/staticfiles.md
  - reference/templating.md
  - reference/testclient.md
- fastapi-people.md
- Resources:
  - resources/index.md
  - help-fastapi.md
  - contributing.md