peer.acceptFrame() // SYN_STREAM
    peer.sendFrame().headers(false, 3, headerEntries("headers", "bam"))
    peer.acceptFrame() // PING
    peer.sendFrame().headers(true, 3, headerEntries("trailers", "boom"))
    peer.sendFrame().ping(true, Http2Connection.AWAIT_PING, 0) // PONG
    peer.play()

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

  }

  @Test
  fun clientReadsHeadersDataTrailersHttp2() {
    platform.assumeHttp2Support()
    server.enqueue(
      MockResponse
        .Builder()
        .clearHeaders()
        .addHeader("h1", "v1")
        .addHeader("h2", "v2")
        .body("HelloBonjour")
        .trailers(headersOf("trailers", "boom"))
        .build(),
    )

                // to
                // ensure that the thread running the failure callbacks is not the main thread.
                Uninterruptibles.awaitUninterruptibly(afterStarted);
                notifyFailed(new Exception("boom"));
              }
            }.start();
          }

          @Override
          protected void doStop() {
            notifyStopped();
          }
        };

        Dispatcher::class.java to Dispatcher(),
        Handshake::class.java to handshake,
        HttpUrl::class.java to url,
        IOException::class.java to IOException("boom"),
        InetSocketAddress::class.java to InetSocketAddress.createUnresolved("localhost", 80),
        List::class.java to listOf<Any?>(),
        Long::class.java to 123L,

    client =
      client
        .newBuilder()
        .dns { hostname: String? -> throw RuntimeException("boom!") }
        .build()
    server.enqueue(MockResponse())
    assertFailsWith<RuntimeException> {
      getResponse(newRequest("/"))
    }.also { expected ->
      assertThat(expected.message).isEqualTo("boom!")
    }
  }

  @Test
  fun streamedBodyIsRetriedOnHttp2Shutdown() {