client-only - Change QUIC clients to use the initial RTT estimate that

net/quic/quic_sent_packet_manager_test.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/quic/quic_sent_packet_manager.h"
 
 #include "base/stl_util.h"
 #include "net/quic/quic_flags.h"
 #include "net/quic/test_tools/quic_config_peer.h"
 #include "net/quic/test_tools/quic_sent_packet_manager_peer.h"
@@ skipping 1432 matching lines @@
   QuicConfigPeer::SetReceivedConnectionOptions(&config, options);
   EXPECT_CALL(*network_change_visitor_, OnCongestionWindowChange(_));
   EXPECT_CALL(*send_algorithm_, GetCongestionWindow())
       .WillOnce(Return(100 * kDefaultTCPMSS));
   EXPECT_CALL(*send_algorithm_, SetFromConfig(_, _));
   manager_.SetFromConfig(config);
 
   EXPECT_TRUE(manager_.using_pacing());
 }
 
+TEST_F(QuicSentPacketManagerTest, UseInitialRoundTripTimeToSend) {
+  uint32 initial_rtt_us = 325000;
+  EXPECT_NE(initial_rtt_us,
+            manager_.GetRttStats()->SmoothedRtt().ToMicroseconds());
+
+  QuicConfig config;
+  config.SetInitialRoundTripTimeUsToSend(initial_rtt_us);
+  EXPECT_CALL(*send_algorithm_, SetFromConfig(_, _));
+  EXPECT_CALL(*network_change_visitor_, OnCongestionWindowChange(_));
+  EXPECT_CALL(*send_algorithm_, GetCongestionWindow())
+      .WillOnce(Return(100 * kDefaultTCPMSS));
+  manager_.SetFromConfig(config);
+
+  EXPECT_EQ(initial_rtt_us,
+            manager_.GetRttStats()->SmoothedRtt().ToMicroseconds());
+}
+
 }  // namespace
 }  // namespace test
 }  // namespace net