message: Fix Quic Ping testcases
  Summary:
  as title
  (Note: this ignores all push blocking failures!)
diff: @@ -122,6 +122,12 @@ MinStreamDataFrame decodeMinStreamDataFrame(folly::io::Cursor& cursor) {
  return frame;
  }
  +class TestPingCallback : public QuicSocket::PingCallback {
  + public:
  + void pingAcknowledged() noexcept override {}
  + void pingTimeout() noexcept override {}
  +};
  +
  class TestQuicTransport
  : public QuicTransportBase,
  public std::enable_shared_from_this<TestQuicTransport> {
  @@ -2569,11 +2575,13 @@ TEST_F(QuicTransportImplTest, CloseFromCancelDeliveryCallbacksForStream) {
  TEST_F(QuicTransportImplTest, SuccessfulPing) {
  auto conn = transport->transportConn;
  std::chrono::milliseconds interval(10);
  - transport->invokeSendPing(nullptr, interval);
  + TestPingCallback pingCallback;
  + transport->invokeSendPing(&pingCallback, interval);
  EXPECT_EQ(transport->isPingTimeoutScheduled(), true);
  EXPECT_EQ(conn->pendingEvents.cancelPingTimeout, false);
  conn->pendingEvents.cancelPingTimeout = true;
  transport->invokeHandlePingCallback();
  + evb->loopOnce();
  EXPECT_EQ(transport->isPingTimeoutScheduled(), false);
  EXPECT_EQ(conn->pendingEvents.cancelPingTimeout, false);
  }
  @@ -2581,7 +2589,8 @@ TEST_F(QuicTransportImplTest, SuccessfulPing) {
  TEST_F(QuicTransportImplTest, FailedPing) {
  auto conn = transport->transportConn;
  std::chrono::milliseconds interval(10);
  - transport->invokeSendPing(nullptr, interval);
  + TestPingCallback pingCallback;
  + transport->invokeSendPing(&pingCallback, interval);
  EXPECT_EQ(transport->isPingTimeoutScheduled(), true);
  EXPECT_EQ(conn->pendingEvents.cancelPingTimeout, false);
  conn->pendingEvents.cancelPingTimeout = true;
  