val stream = connection.newStream(headerEntries("b", "banana"), true)
    val out = stream.sink.buffer()
    out.writeUtf8("c3po")
    out.close()
    stream.writeHeaders(headerEntries("e", "elephant"), false, false)
    connection.writePingAndAwaitPong()
    assertThat(connection.openStreamCount()).isEqualTo(0)

    // Verify the peer received what was expected.
    val synStream = peer.takeFrame()