fun toJavaNetUrl() {
    val httpUrl = "http://username:password@host/path?query#fragment".toHttpUrl()
    val javaNetUrl = httpUrl.toUrl()
    assertThat(javaNetUrl.toString())
      .isEqualTo("http://username:password@host/path?query#fragment")
  }

  @Test
  fun toUri() {
    val httpUrl = "http://username:password@host/path?query#fragment".toHttpUrl()
    val uri = httpUrl.toUri()
    assertThat(uri.toString())

      ) {
        builder.fragment("a${value}z")
      }

      override operator fun get(url: HttpUrl): String {
        val fragment = url.fragment
        return fragment!!.substring(1, fragment.length - 1)
      }
    }, ;

    abstract fun urlString(value: String): String

    abstract fun encodedValue(url: HttpUrl): String

    abstract operator fun set(
      builder: HttpUrl.Builder,

 * query as the single string, or as individual name-value parameters. With name-value parameters
 * the values are optional and names may be repeated.
 *
 * ### Fragment
 *
 * The fragment is optional: it can be null, empty, or non-empty. Unlike host, port, path, and
 * query the fragment is not sent to the webserver: it's private to the client.
 *
 * ## Encoding
 *

    val url =
      parse("http://host/#fragment")
        .newBuilder()
        .fragment(null)
        .build()
    assertThat(url.toString()).isEqualTo("http://host/")
    assertThat(url.fragment).isNull()
    assertThat(url.encodedFragment).isNull()
  }

  @Test
  fun clearEncodedFragment() {
    val url =
      parse("http://host/#fragment")
        .newBuilder()

//
//	var spd sparseDatas = []sparseEntry{
//		{Offset: 2,  Length: 5},  // Data fragment for 2..6
//		{Offset: 18, Length: 3},  // Data fragment for 18..20
//	}
//	var sph sparseHoles = []sparseEntry{
//		{Offset: 0,  Length: 2},  // Hole fragment for 0..1
//		{Offset: 7,  Length: 11}, // Hole fragment for 7..17
//		{Offset: 21, Length: 4},  // Hole fragment for 21..24
//	}
//

  var input: String? = null
  var base: String? = null
  var scheme = ""
  var username = ""
  var password: String? = null
  var host = ""
  var port = ""
  var path = ""
  var query = ""
  var fragment = ""

  fun expectParseFailure() = scheme.isEmpty()

  private operator fun set(
    name: String,
    value: String,
  ) {
    when (name) {
      "s" -> scheme = value
      "u" -> username = value

        exp = "file://C .doc";
        assertEquals(exp, transformer.decodeUrlAsName(url, true));

        url = "http://example.com/foo/" + encodeUrl("#") + "/@@bar/index.html#fragment?foo=bar";
        exp = "http://example.com/foo/#/@@bar/index.html#fragment?foo=bar";
        assertEquals(exp, transformer.decodeUrlAsName(url, false));
    }

    public void test_getFileName_ok() throws Exception {
        String url, exp;

	endPos := sw.pos + int64(len(b))
	for endPos > sw.pos && err == nil {
		var nf int // Bytes written in fragment
		dataStart, dataEnd := sw.sp[0].Offset, sw.sp[0].endOffset()
		if sw.pos < dataStart { // In a hole fragment
			bf := b[:min(int64(len(b)), dataStart-sw.pos)]
			nf, err = zeroWriter{}.Write(bf)
		} else { // In a data fragment
			bf := b[:min(int64(len(b)), dataEnd-sw.pos)]
			nf, err = sw.fw.Write(bf)
		}
		b = b[nf:]

    assertThat(url.encodedPath, "path").isEqualTo(testData.path)
    assertThat(effectiveQuery, "query").isEqualTo(testData.query)
    assertThat(effectiveFragment, "fragment").isEqualTo(testData.fragment)
  }

  companion object {
    private val HTTP_URL_SCHEMES = listOf("http", "https")
    private val KNOWN_FAILURES =
      listOf(

	endPos := sr.pos + int64(len(b))
	for endPos > sr.pos && err == nil {
		var nf int // Bytes read in fragment
		holeStart, holeEnd := sr.sp[0].Offset, sr.sp[0].endOffset()
		if sr.pos < holeStart { // In a data fragment
			bf := b[:min(int64(len(b)), holeStart-sr.pos)]
			nf, err = tryReadFull(sr.fr, bf)
		} else { // In a hole fragment
			bf := b[:min(int64(len(b)), holeEnd-sr.pos)]
			nf, err = tryReadFull(zeroReader{}, bf)
		}