private object SlowRequestBody : RequestBody() {
    override fun contentType(): MediaType? = null

    override fun writeTo(sink: BufferedSink) {
      for (i in 0 until 50) {
        sink.writeUtf8("abc")
        sink.flush()
        Thread.sleep(100)
      }
      fail("")
    }
  }

We sign our artifacts using this [key][signing_key]:

```
pub rsa4096/dbd744ace7ade6aa50dd591f66b50994442d2d40 2021-07-09T14:50:19Z
	 Hash=a79b48fd6a1f31699c788b50c97d0b98

uid Square Clippy <******@****.***>
sig  sig  66b50994442d2d40 2021-07-09T14:50:19Z 2041-07-04T14:50:19Z ____________________ [selfsig]
```

The best way to verify artifacts is [automatically with Gradle][gradle_verification].

    assertThat(testLogHandler.takeAll()).containsExactly(
      "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",

    serverSocket = serverSocketFactory!!.createServerSocket()

    // Reuse if the user specified a port
    serverSocket!!.reuseAddress = inetSocketAddress.port != 0
    serverSocket!!.bind(inetSocketAddress, 50)

    portField = serverSocket!!.localPort

    taskRunner.newQueue().execute("MockWebServer $portField", cancelable = false) {
      try {
        logger.fine("$this starting to accept connections")

   *
   * 1. Original
   * ```
   * Content-Type: text/html
   * Content-Length: 50
   * ```
   *
   * 2. Different order
   *
   * ```
   * Content-Length: 50
   * Content-Type: text/html
   * ```
   *
   * 3. Different case
   *
   * ```
   * content-type: text/html
   * content-length: 50
   * ```
   *
   * 4. Different values
   *
   * ```

      "control" means (i) the power, direct or indirect, to cause the
      direction or management of such entity, whether by contract or
      otherwise, or (ii) ownership of fifty percent (50%) or more of the
      outstanding shares, or (iii) beneficial ownership of such entity.

      "You" (or "Your") shall mean an individual or Legal Entity
      exercising permissions granted by this License.

    serverSocket = serverSocketFactory.createServerSocket()
    val serverAddress = InetAddress.getByName("localhost")
    serverSocket!!.bind(InetSocketAddress(serverAddress, 0), 50)
    return InetSocketAddress(serverAddress, serverSocket!!.localPort)
  }

  private fun doServerHandshake(server: HandshakeCertificates): Future<Handshake> {
    return executorService.submit<Handshake> {

    val windowSize = 100
    val windowUpdateThreshold = 50

    // Write the mocking script.
    peer.sendFrame().settings(Settings())
    peer.acceptFrame() // ACK
    peer.acceptFrame() // SYN_STREAM
    peer.sendFrame().headers(false, 3, headerEntries("a", "android"))
    for (i in 0..2) {
      // Send frames of summing to size 50, which is windowUpdateThreshold.

    factory.close()
    peer.close()
  }

  @Test fun connectionsEvictedWhenIdleLongEnough() {
    val pool = factory.newConnectionPool()
    val c1 = factory.newConnection(pool, routeA1, 50L)

    // Running at time 50, the pool returns that nothing can be evicted until time 150.
    assertThat(pool.closeConnections(50L)).isEqualTo(100L)
    assertThat(pool.connectionCount()).isEqualTo(1)
    assertThat(c1.socket().isClosed).isFalse()

      .cache(Cache(
          directory = File(application.cacheDir, "http_cache"),
          // $0.05 worth of phone storage in 2020
          maxSize = 50L * 1024L * 1024L // 50 MiB
      ))
      .build()
```

## EventListener events 

Cache Events are exposed via the EventListener API.  Typical scenarios are below.

### Cache Hit