OkHttpClient.Builder()
      .connectionSpecs(listOf(ConnectionSpec.CLEARTEXT))
      .dns {
        throw UnknownHostException("shortcircuit")
      }

  val request = Request("http://google.com/robots.txt".toHttpUrl())

  @Test
  fun testHttpLoggingInterceptor() {
    val interceptor =
      HttpLoggingInterceptor.androidLogging(tag = "testHttpLoggingInterceptor").apply {

    with these curl arguments:

    ```
    curl \
      --http2-prior-knowledge \
      --proxy localhost:8888 \
      --proxytunnel \
      http://squareup.com/robots.txt
    ```

 *  Fix: Support executing OkHttp on kotlin-stdlib versions as old as 1.4. The library still builds
    on up-to-date Kotlin releases (1.6.21) but no longer needs that version as a runtime dependency.

    engine.shutdown()
    cacheDir.deleteRecursively()
  }

  @Test
  fun get() {
    val executor = Executors.newCachedThreadPool()

    val completableFuture = execute(engine, executor, "https://google.com/robots.txt")

    try {
      val response = completableFuture.get(10, TimeUnit.SECONDS)

      assertEquals(200, response.code)
      assertEquals("h3", response.negotiatedProtocol)

Mikhail Startsev, Milan Straka, Ml-0, Myung-Hyun Kim, Måns Nilsson, Nathan
Luehr, ngc92, nikochiko, Niranjan Hasabnis, nyagato_00, Oceania2018, Oleg Guba,
Ongun Kanat, OscarVanL, Patrik Laurell, Paul Tanger, Peter Sobot, Phil Pearl,
PlusPlusUltra, Poedator, Prasad Nikam, Rahul-Kamat, Rajeshwar Reddy T,
redwrasse, Rickard, Robert Szczepanski, Rohan Lekhwani, Sam Holt, Sami Kama,

        .cache(Cache(FakeFileSystem(), "/cache".toPath(), 10_000_000))
        .build()
  }

  @Test
  fun testRequestExternal() {
    assumeNetwork()

    val request = Request("https://www.google.com/robots.txt".toHttpUrl())

    val networkRequest =
      request.newBuilder()
        .build()

    val call = client.newCall(networkRequest)

    call.execute().use { response ->

    peer.acceptFrame() // ACK
    peer.acceptFrame() // SYN_STREAM
    peer.acceptFrame() // DATA
    peer.sendFrame().headers(false, 3, headerEntries("a", "android"))
    peer.sendFrame().data(true, 3, Buffer().writeUtf8("robot"), 5)
    peer.acceptFrame() // PING
    peer.sendFrame().ping(true, Http2Connection.AWAIT_PING, 0) // PING
    peer.play()

    // Play it back.
    val connection = connect(peer)