TYPE_RST_STREAM -> readRstStream(handler, length, flags, streamId)
      TYPE_SETTINGS -> readSettings(handler, length, flags, streamId)
      TYPE_PUSH_PROMISE -> readPushPromise(handler, length, flags, streamId)
      TYPE_PING -> readPing(handler, length, flags, streamId)
      TYPE_GOAWAY -> readGoAway(handler, length, flags, streamId)
      TYPE_WINDOW_UPDATE -> readWindowUpdate(handler, length, flags, streamId)

      val byteCount = hpackBuffer.size
      val length = minOf(maxFrameSize - 4L, byteCount).toInt()
      frameHeader(
        streamId = streamId,
        length = length + 4,
        type = TYPE_PUSH_PROMISE,
        flags = if (byteCount == length.toLong()) FLAG_END_HEADERS else 0,
      )
      sink.writeInt(promisedStreamId and 0x7fffffff)
      sink.write(hpackBuffer, length.toLong())

 * contains newline characters.
 */
internal fun String.indexOfNonWhitespace(startIndex: Int = 0): Int {
  for (i in startIndex until length) {
    val c = this[i]
    if (c != ' ' && c != '\t') {
      return i
    }
  }
  return length
}

fun String.toLongOrDefault(defaultValue: Long): Long {
  return try {
    toLong()
  } catch (_: NumberFormatException) {
    defaultValue

  }

  @Test fun clientIncompleteControlFrameBodyThrows() {
    data.write("8a0548656c".decodeHex()) // Length = 5, "Hel"
    assertFailsWith<EOFException> {
      clientReader.processNextFrame()
    }
  }

  @Test fun serverIncompleteMessageBodyThrows() {
    data.write("818537fa213d7f9f4d".decodeHex()) // Length = 5, "Hel"
    assertFailsWith<EOFException> {
      serverReader.processNextFrame()
    }
  }

    assertThat(body.contentLength()).isEqualTo(expected.length.toLong())
    val buffer = Buffer()
    body.writeTo(buffer)
    assertThat(buffer.readUtf8()).isEqualTo(expected)
  }

  @Test
  fun buildEmptyForm() {
    val body = FormBody.Builder().build()
    val expected = ""
    assertThat(body.contentLength()).isEqualTo(expected.length.toLong())
    val buffer = Buffer()
    body.writeTo(buffer)

  private fun chainOfLength(length: Int): List<HeldCertificate> {
    val result = mutableListOf<HeldCertificate>()
    for (i in 1..length) {
      result.add(
        0,
        HeldCertificate.Builder()
          .signedBy(if (result.isNotEmpty()) result[0] else null)
          .certificateAuthority(length - i)
          .serialNumber(i.toLong())
          .build(),
      )

   */
  @get:JvmName("encodedUsername")
  val encodedUsername: String
    get() {
      if (username.isEmpty()) return ""
      val usernameStart = scheme.length + 3 // "://".length() == 3.
      val usernameEnd = url.delimiterOffset(":@", usernameStart, url.length)
      return url.substring(usernameStart, usernameEnd)
    }

  /**
   * The password, or an empty string if none is set.
   *

The [SliceAt(typ Type, p unsafe.Pointer, len int)] function
returns a Value representing a slice whose underlying array starts

  }

  @Test
  fun truncatedMetadataEntry() {
    val response =
      testCorruptingCache {
        corruptMetadata {
          // truncate metadata to 1/4 of length
          it.substring(0, it.length / 4)
        }
      }

    assertThat(response.body.string()).isEqualTo("ABC.2") // not cached
    assertThat(cache.requestCount()).isEqualTo(2)
    assertThat(cache.networkCount()).isEqualTo(2)

          val bytes = reader.readUnknown()
          return AnyValue(
            tagClass = header.tagClass,
            tag = header.tag,
            constructed = header.constructed,
            length = header.length,
            bytes = bytes,
          )
        }
      }

      override fun toDer(
        writer: DerWriter,
        value: AnyValue,
      ) {