responseHeadersBuilder.removeAll(SENT_MILLIS)
        responseHeadersBuilder.removeAll(RECEIVED_MILLIS)
        sentRequestMillis = sendRequestMillisString?.toLong() ?: 0L
        receivedResponseMillis = receivedResponseMillisString?.toLong() ?: 0L
        responseHeaders = responseHeadersBuilder.build()

        if (url.isHttps) {
          val blank = source.readUtf8LineStrict()
          if (blank.isNotEmpty()) {

        .addHeader("h1", "v1")
        .trailers(headersOf("t1", "v2"))
        .body(protocol, halfResponseBody + halfResponseBody)
        .throttleBody(
          OKHTTP_CLIENT_WINDOW_SIZE.toLong(),
          DISCARD_STREAM_TIMEOUT_MILLIS.toLong() + 1L,
          TimeUnit.MILLISECONDS,
        ).build(),
    )

    val call =
      client.newCall(
        Request(
          url = server.url("/"),

  // 3. successful network response
  // 4. successful stale cached GET response
  // 5. unsuccessful response
  @Test
  fun usesCache() {
    val cache = Cache(cacheFs, "cache".toPath(), (100 * 1024).toLong())
    val cachedClient = bootstrapClient.newBuilder().cache(cache).build()
    val cachedDns = buildLocalhost(cachedClient, false)

    repeat(2) {
      server.enqueue(
        dnsResponse(

    frame.writeByte(Http2.TYPE_HEADERS)
    frame.writeByte(FLAG_NONE)
    frame.writeInt(expectedStreamId and 0x7fffffff)
    frame.write(headerBlock, Http2.INITIAL_MAX_FRAME_SIZE.toLong())

    // Write the continuation frame, specifying no more frames are expected.
    writeMedium(frame, headerBlock.size.toInt())
    frame.writeByte(Http2.TYPE_CONTINUATION)
    frame.writeByte(FLAG_END_HEADERS)

      },
    ).hasMessage("timeout too small")
    assertThat(
      assertThrows<IllegalArgumentException> {
        checkDuration(
          "timeout",
          1L + Int.MAX_VALUE.toLong(),
          TimeUnit.MILLISECONDS,
        )
      },
    ).hasMessage("timeout too large")
  }

  @Test
  fun testDurationDuration() {
    assertThat(checkDuration("timeout", 0.milliseconds)).isEqualTo(0)

  private fun createNewCache() {
    createNewCacheWithSize(Int.MAX_VALUE)
  }

  private fun createNewCacheWithSize(maxSize: Int) {
    cache =
      DiskLruCache(filesystem, cacheDir, appVersion, 2, maxSize.toLong(), taskRunner).also {
        toClose.add(it)
      }
    synchronized(cache) { cache.initialize() }
  }

  @BeforeEach
  fun setUp() {
    if (filesystem.exists(cacheDir)) {

    newWebSocket(
      "/getCaseCount",
      object : WebSocketListener() {
        override fun onMessage(
          webSocket: WebSocket,
          text: String,
        ) {
          countRef.set(text.toLong())
        }

        override fun onClosing(
          webSocket: WebSocket,
          code: Int,
          reason: String,
        ) {
          webSocket.close(1000, null)

      .isEqualTo(">> 0x00000000     8 GOAWAY        ")
  }

  /** Window update frames have special formatting.  */
  @Test
  fun windowUpdateFrames() {
    assertThat(frameLogWindowUpdate(false, 0, 4, Int.MAX_VALUE.toLong()))
      .isEqualTo(">> 0x00000000     4 WINDOW_UPDATE 2147483647")
    assertThat(frameLogWindowUpdate(true, 101, 4, 1))
      .isEqualTo("<< 0x00000065     4 WINDOW_UPDATE 1")
  }

  @Test

      @Throws(IOException::class)
      override fun onData(
        streamId: Int,
        source: BufferedSource,
        byteCount: Int,
        last: Boolean,
      ): Boolean {
        source.skip(byteCount.toLong())
        return true
      }

      override fun onReset(
        streamId: Int,
        errorCode: ErrorCode,
      ) {
      }
    }
  }

    // Each header name has 2 bytes of overhead for ': ' and every header value has 2 bytes of
    // overhead for '\r\n'.
    var result = (namesAndValues.size * 2).toLong()

    for (i in 0 until namesAndValues.size) {
      result += namesAndValues[i].length.toLong()
    }

    return result
  }

  override operator fun iterator(): Iterator<Pair<String, String>> = commonIterator()