val connection =
      Http2Connection.Builder(true, TaskRunner.INSTANCE)
        .socket(socket)
        .pushObserver(IGNORE)
        .build()
    connection.start(sendConnectionPreface = false)
    socket.shutdownOutput()
    assertFailsWith<IOException> {
      connection.newStream(headerEntries("a", longString), false)
    }
    assertFailsWith<IOException> {
      connection.newStream(headerEntries("b", longString), false)