val response = call.execute()
    assertThat(response.body.string()).isEqualTo("ABC")
    assertThat(response.protocol).isEqualTo(protocol)

    // Confirm a single ping was sent and received, and its reply was sent and received.
    val logs = testLogHandler.takeAll()
    assertThat(countFrames(logs, "FINE: >> 0x00000000     8 PING          "))
      .isEqualTo(1)

/**
 * Factory for [calls][Call], which can be used to send HTTP requests and read their responses.
 *
 * ## OkHttpClients Should Be Shared
 *
 * OkHttp performs best when you create a single `OkHttpClient` instance and reuse it for all of
 * your HTTP calls. This is because each client holds its own connection pool and thread pools.
 * Reusing connections and threads reduces latency and saves memory. Conversely, creating a client

    assertAbsent("a")
    assertAbsent("b")
    cache.close()
    createNewCache()

    // The journal has no record that 'a' and 'b' were removed. It will have an entry for both, but
    // when it tries to read the cache files for either entry, it will discover the cache files are
    // missing and remove the entries from the cache.
    assertThat(cache.size()).isEqualTo(4)
    assertThat(cache["a"]).isNull()

    val ping = peer.takeFrame()
    assertThat(ping.type).isEqualTo(Http2.TYPE_PING)
  }

  @Test fun serverWritesTrailersWithData() {
    // We buffer some outbound data and headers and confirm that the END_STREAM flag comes with the
    // headers (and not with the data).

    // Write the mocking script. for the client
    peer.setClient(true)

    // Write the mocking script.
    peer.sendFrame().settings(Settings())