TEST_F(QuicServerTransportTest, PingIsTreatedAsRetransmittable) {
  PingFrame pingFrame;
  ShortHeader header(
      ProtectionType::KeyPhaseZero,
      *server->getConn().serverConnectionId,
      clientNextAppDataPacketNum++);
  RegularQuicPacketBuilder builder(
      server->getConn().udpSendPacketLen,
      std::move(header),
      0 /* largestAcked */);
  builder.encodePacketHeader();
  writeFrame(pingFrame, builder);
  auto packet = std::move(builder).buildPacket();
  deliverData(packetToBuf(packet));
  EXPECT_TRUE(server->getConn().pendingEvents.scheduleAckTimeout);
}