private static final String LARGEST_SURROGATE =
      "" + Character.MAX_HIGH_SURROGATE + Character.MAX_LOW_SURROGATE;

  private static final String TEST_STRING =
      "\0abyz\u0080\u0100\u0800\u1000ABYZ\uffff" + SMALLEST_SURROGATE + "0189" + LARGEST_SURROGATE;

  // Escapes nothing
  private static final UnicodeEscaper NOP_ESCAPER =
      new UnicodeEscaper() {
        @Override

  private static final String LARGEST_SURROGATE =
      "" + Character.MAX_HIGH_SURROGATE + Character.MAX_LOW_SURROGATE;

  private static final String TEST_STRING =
      "\0abyz\u0080\u0100\u0800\u1000ABYZ\uffff" + SMALLEST_SURROGATE + "0189" + LARGEST_SURROGATE;

  // Escapes nothing
  private static final UnicodeEscaper NOP_ESCAPER =
      new UnicodeEscaper() {
        @Override

    assertForbiddenHeader("\u0000")
    assertForbiddenHeader("\r")
    assertForbiddenHeader("\n")
    assertForbiddenHeader("\u001f")
    assertForbiddenHeader("\u007f")
    assertForbiddenHeader("\u0080")
    assertForbiddenHeader("\ud83c\udf69")
  }

  private fun assertForbiddenHeader(s: String) {
    val builder = Request.Builder()
    assertFailsWith<IllegalArgumentException> {

    assertThat(client.processNextFrame()).isFalse()
    client.listener.assertClosing(1000, "Bye!")
  }

  @Test
  fun protocolErrorBeforeCloseSendsFailure() {
    server.sink.write("0a00".decodeHex()).emit() // Invalid non-final ping frame.
    client.processNextFrame() // Detects error, send close, close connection.
    taskFaker.runTasks()
    client.webSocket!!.finishReader()

	{"\u0250\u0250\u0250\u0250\u0250", []byte("\u2C6F\u2C6F\u2C6F\u2C6F\u2C6F")}, // grows one byte per char
	{"a\u0080\U0010FFFF", []byte("A\u0080\U0010FFFF")},                           // test utf8.RuneSelf and utf8.MaxRune
}

var lowerTests = []StringTest{
	{"", []byte("")},
	{"abc", []byte("abc")},
	{"AbC123", []byte("abc123")},

      perMessageDeflate = true,
      noContextTakeover = false,
    )

  @AfterEach fun tearDown() {
    callback.assertExhausted()
  }

  @Test fun controlFramesMustBeFinal() {
    data.write("0a00".decodeHex()) // Empty pong.
    assertFailsWith<ProtocolException> {
      clientReader.processNextFrame()
    }.also { expected ->
      assertThat(expected.message)
        .isEqualTo("Control frames must be final.")

		{"http://:8080/path", Endpoint{}, -1, fmt.Errorf("invalid URL endpoint format: empty host name")},
		{"http://server:/path", Endpoint{}, -1, fmt.Errorf("invalid URL endpoint format: invalid port number")},
		{"https://93.184.216.34:808080/path", Endpoint{}, -1, fmt.Errorf("invalid URL endpoint format: port number must be between 1 to 65535")},
		{"http://server:8080//", Endpoint{}, -1, fmt.Errorf("empty or root path is not supported in URL endpoint")},

E0000         ; disallowed                             # NA   <reserved-E0000>
E0001         ; disallowed                             # 3.1  LANGUAGE TAG
E0002..E001F  ; disallowed                             # NA   <reserved-E0002>..<reserved-E001F>
E0020..E007F  ; disallowed                             # 3.1  TAG SPACE..CANCEL TAG

  }

  @Test
  fun fragmentPercentEncodedNonAscii() {
    val url = parse("http://host/#%C2%80")
    assertThat(url.toString()).isEqualTo("http://host/#%C2%80")
    assertThat(url.fragment).isEqualTo("\u0080")
    assertThat(url.encodedFragment).isEqualTo("%C2%80")
  }

  @Test
  fun fragmentPercentEncodedPartialCodePoint() {
    val url = parse("http://host/#%80")

 */
    public static final int ATTR_ARCHIVE    = 0x20;

    // extended file attribute encoding(others same as above)
    static final int ATTR_COMPRESSED       = 0x800;
    static final int ATTR_NORMAL           = 0x080;
    static final int ATTR_TEMPORARY        = 0x100;

    static final int ATTR_GET_MASK = 0x7FFF; /* orig 0x7fff */
    static final int ATTR_SET_MASK = 0x30A7; /* orig 0x0027 */