if (sourceCount == 0) {
          fileToClose = file
          file = null
        }
      }

      fileToClose?.closeQuietly()
    }
  }

  companion object {
    // TODO(jwilson): what to do about timeouts? They could be different and unfortunately when any
    //     timeout is hit we like to tear down the whole stream.

    private const val SOURCE_UPSTREAM = 1
    private const val SOURCE_FILE = 2

        .build()
    assertThat(headers.parseChallenges("WWW-Authenticate")).containsExactly(
      Challenge("Digest", mapOf()),
    )
  }

  @Disabled("TODO(jwilson): reject parameters that use invalid characters")
  @Test
  fun doubleQuoteInToken() {
    val headers =
      Headers.Builder()
        .add("WWW-Authenticate", "Digest,,,, Basic ,,,realm=my\"realm")

      getResponse(newRequest("/"))
    }.also { expected ->
      when (expected) {
        is SSLException, is TlsFatalAlert -> {}
        else -> throw expected
      }
    }
  }

  // TODO(jwilson): tests below this marker need to be migrated to OkHttp's request/response API.
  @Test
  fun connectViaHttpsWithSSLFallback() {
    platform.assumeNotBouncyCastle()

    webSocket = slackApi.rtm(rtmStartResponse.url, this);
  }

  // TODO(jwilson): can I read the response body? Do I have to?
  //                the body from slack is a 0-byte-buffer
  @Override public synchronized void onOpen(WebSocket webSocket, Response response) {
    System.out.println("onOpen: " + response);
  }

  // TOOD(jwilson): decode incoming messages and dispatch them somewhere.

      val bytesDiscarded: Long
      ******@****.***ck {
        closed = true
        bytesDiscarded = readBuffer.size
        readBuffer.clear()
        condition.signalAll() // TODO(jwilson): Unnecessary?
      }
      if (bytesDiscarded > 0L) {
        updateConnectionFlowControl(bytesDiscarded)
      }
      cancelStreamIfNecessary()
    }
  }

  @Throws(IOException::class)

      }
      result.writeDecimalLong(readVariableLengthLong())
    }
    return result.readUtf8()
  }

  /** Used for tags and subidentifiers. */
  private fun readVariableLengthLong(): Long {
    // TODO(jwilson): detect overflow.
    var result = 0L
    while (true) {
      val byteN = source.readByte().toLong() and 0xff
      if ((byteN and 0b1000_0000L) == 0b1000_0000L) {

1F16..1F17    ; disallowed                             # NA   <reserved-1F16>..<reserved-1F17>
1F18          ; mapped                 ; 1F10          # 1.1  GREEK CAPITAL LETTER EPSILON WITH PSILI
1F19          ; mapped                 ; 1F11          # 1.1  GREEK CAPITAL LETTER EPSILON WITH DASIA

// engineer : 2014-03-06 Dog Beach, LLC
engineer

// engineering : 2014-03-06 Binky Moon, LLC
engineering

// enterprises : 2013-09-20 Binky Moon, LLC
enterprises

// epson : 2014-12-04 Seiko Epson Corporation
epson

// equipment : 2013-08-27 Binky Moon, LLC
equipment

// ericsson : 2015-07-09 Telefonaktiebolaget L M Ericsson
ericsson

// erni : 2014-04-03 ERNI Group Holding AG

engine.aero engineer engineer.aero engineering england.museum eniwa.hokkaido.jp enna.it ens.tn enscaled.sg ent.platform.sh enterprisecloud.nu enterprises entertainment.aero entomology.museum environment.museum environmentalconserv.museum epilepsy.museum epson equipment equipment.aero er.in ericsson erimo.hokkaido.jp erni erotica.hu erotika.hu es es-1.axarnet.cloud es.ax es.eu.org es.gov.br es.kr es.leg.br esan.hokkaido.jp esashi.hokkaido.jp esp.br esq essex.museum est-a-la-maison.com est-a-la-masion.com...

          ) = writer.writeUtf8(value)
        },
    )

  /**
   * Permits alphanumerics, spaces, and these:
   *
   * ```
   *   ' () + , - . / : = ?
   * ```
   *
   * TODO(jwilson): constrain to printable string characters.
   */
  val PRINTABLE_STRING =
    BasicDerAdapter(
      name = "PRINTABLE STRING",
      tagClass = DerHeader.TAG_CLASS_UNIVERSAL,
      tag = 19L,
      codec =