var callDone = false
    withLock {
      if (
        requestDone && requestBodyOpen ||
        responseDone && responseBodyOpen ||
        socketSinkDone && socketSinkOpen ||
        socketSourceDone && socketSourceOpen
      ) {
        if (requestDone) requestBodyOpen = false
        if (responseDone) responseBodyOpen = false
        if (socketSinkDone) socketSinkOpen = false

  // HEAD requests never yield a body regardless of the response headers.
  if (request.method == "HEAD") {
    return false
  }

  val responseCode = code
  if ((responseCode < HTTP_CONTINUE || responseCode >= 200) &&
    responseCode != HTTP_NO_CONTENT &&
    responseCode != HTTP_NOT_MODIFIED
  ) {
    return true
  }

  // If the Content-Length or Transfer-Encoding headers disagree with the response code, the

    if (HttpMethod.permitsRequestBody(method)) {
      val responseCode = userResponse.code
      val maintainBody =
        HttpMethod.redirectsWithBody(method) ||
          responseCode == HTTP_PERM_REDIRECT ||
          responseCode == HTTP_TEMP_REDIRECT
      if (HttpMethod.redirectsToGet(method) && responseCode != HTTP_PERM_REDIRECT && responseCode != HTTP_TEMP_REDIRECT) {
        requestBuilder.method("GET", null)

          .hostnameVerifier(hostnameVerifier)
          .build()
    }
    val responseOne =
      MockResponse
        .Builder()
        .addHeader("Content-Encoding: gzip")
    transferKind.setBody(responseOne, gzip("one (gzipped)"), 5)
    server.enqueue(responseOne.build())
    val responseTwo = MockResponse.Builder()
    transferKind.setBody(responseTwo, "two (identity)", 5)

    shouldWriteToCache: Boolean,
    responseCode: Int,
    method: String = "GET",
  ) {
    var expectedResponseCode = responseCode
    val server = MockWebServer()
    val builder =
      MockResponse
        .Builder()
        .addHeader("Last-Modified: " + formatDate(-1, TimeUnit.HOURS))
        .addHeader("Expires: " + formatDate(1, TimeUnit.HOURS))
        .code(responseCode)
        .body("ABCDE")