commit c264e362287f44415cf97dd657b20fa64c49d75d
author QUICHE team <quiche-dev@google.com> Tue Mar 19 14:21:06 2019 -0700
committer Copybara-Service <copybara-worker@google.com> Tue Mar 19 14:37:43 2019 -0700
tree bd309458d2805405805827d482bf25f5128f8b3c
parent e6dcf32933fcccd159dffbbe33a36886d4ef2d7d

gfe-relnote: In QUIC, add QuicPacketNumber::UpdateMax function. No functional change expected. Not protected.

UpdateMax updates packet number to be new_value if it is greater.

PiperOrigin-RevId: 239268272
Change-Id: I07be6cc28cb77dc57bb4205e4052ca8a7b68d995

quic/core/quic_packet_number_test.cc

diff --git a/quic/core/quic_packet_number_test.cc b/quic/core/quic_packet_number_test.cc
index 5e32b8c..9c0b6d8 100644
--- a/quic/core/quic_packet_number_test.cc
+++ b/quic/core/quic_packet_number_test.cc
@@ -21,8 +21,16 @@
   EXPECT_TRUE(num2.IsInitialized());
   EXPECT_EQ(10u, num2.ToUint64());
   EXPECT_EQ(10u, num2.Hash());
+  num2.UpdateMax(num);
+  EXPECT_EQ(10u, num2.ToUint64());
+  num2.UpdateMax(QuicPacketNumber(9));
+  EXPECT_EQ(10u, num2.ToUint64());
+  num2.UpdateMax(QuicPacketNumber(11));
+  EXPECT_EQ(11u, num2.ToUint64());
   num2.Clear();
   EXPECT_FALSE(num2.IsInitialized());
+  num2.UpdateMax(QuicPacketNumber(9));
+  EXPECT_EQ(9u, num2.ToUint64());
 
   if (!GetQuicRestartFlag(quic_uint64max_uninitialized_pn)) {
     QuicPacketNumber num3(std::numeric_limits<uint64_t>::max());