.isCloseTo(now.toDouble(), deltaMillis)
    assertThat(certificate.notAfter.time.toDouble())
      .isCloseTo(now.toDouble() + durationMillis, deltaMillis)
  }

  @Test
  fun customInterval() {
    // 5 seconds starting on 1970-01-01.
    val heldCertificate =
      HeldCertificate.Builder()
        .validityInterval(5000L, 10000L)
        .build()
    val certificate = heldCertificate.certificate

The [spec][rfc_7692] includes a sophisticated mechanism for client and server to negotiate
compression features. We strive to offer great performance in our default configuration and so we're
making compression the default for everyone starting with this release candidate.

Please be considerate of your servers and their operators as you roll out this release. Compression
saves bandwidth but it costs CPU and memory! If you run into a problem you may need to adjust or

          .build()
      return CacheStrategy(conditionalRequest, cacheResponse)
    }

    /**
     * Returns the number of milliseconds that the response was fresh for, starting from the served
     * date.
     */
    private fun computeFreshnessLifetime(): Long {
      val responseCaching = cacheResponse!!.cacheControl
      if (responseCaching.maxAgeSeconds != -1) {

    call: Call,
    byteCount: Long,
  ) {
  }

  /**
   * Invoked when a response fails to be read.
   *
   * Note that response failures do not necessarily fail the entire call.
   *
   * Starting with OkHttp 4.3 this may be invoked without a prior call to [responseHeadersStart]
   * or [responseBodyStart]. In earlier releases this method was documented to only be invoked after
   * one of those methods.
   */

    serverSocket!!.bind(inetSocketAddress, 50)

    portField = serverSocket!!.localPort

    taskRunner.newQueue().execute("MockWebServer $portField", cancelable = false) {
      try {
        logger.fine("$this starting to accept connections")
        acceptConnections()
      } catch (e: Throwable) {
        logger.log(Level.WARNING, "$this failed unexpectedly", e)
      }

      "FINE: Q10000 scheduled after 100 µs: task",
      "FINE: Q10000 starting              : task",
      "FINE: Q10000 run again after  50 µs: task",
      "FINE: Q10000 finished run in   0 µs: task",
      "FINE: Q10000 starting              : task",
      "FINE: Q10000 run again after 150 µs: task",
      "FINE: Q10000 finished run in   0 µs: task",
      "FINE: Q10000 starting              : task",
      "FINE: Q10000 finished run in   0 µs: task",

  queue: TaskQueue,
  block: () -> T,
): T {
  var startNs = -1L
  val loggingEnabled = isLoggable(Level.FINE)
  if (loggingEnabled) {
    startNs = queue.taskRunner.backend.nanoTime()
    log(task, queue, "starting")
  }

  var completedNormally = false
  try {
    val result = block()
    completedNormally = true
    return result
  } finally {
    if (loggingEnabled) {

   */
  HTTP_2("h2"),

  /**
   * Cleartext HTTP/2 with no "upgrade" round trip. This option requires the client to have prior
   * knowledge that the server supports cleartext HTTP/2.
   *
   * See also [Starting HTTP/2 with Prior Knowledge][rfc_7540_34].
   *
   * [rfc_7540_34]: https://tools.ietf.org/html/rfc7540.section-3.4
   */
  H2_PRIOR_KNOWLEDGE("h2_prior_knowledge"),

  /**

    .addSubjectAlternativeName("localhost")
    .signedBy(intermediateCertificate)
    .build();
```

To serve this configuration the server needs to provide its clients with a chain of certificates
starting with its own and including everything up-to but not including the root. We don't need to
include root certificates because the client already has them.

```java

 *
 * http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-12
 *
 * This implementation uses an array for the dynamic table and a list for indexed entries. Dynamic
 * entries are added to the array, starting in the last position moving forward. When the array
 * fills, it is doubled.
 */
@Suppress("NAME_SHADOWING")
object Hpack {
  private const val PREFIX_4_BITS = 0x0f
  private const val PREFIX_5_BITS = 0x1f