Make QUIC version negotiation stateless. The QUIC dispatcher now detects version mismatch before cr…

net/tools/quic/quic_time_wait_list_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/tools/quic/quic_time_wait_list_manager.h"
 
 #include <errno.h>
 
 #include "net/quic/crypto/crypto_protocol.h"
 #include "net/quic/crypto/null_encrypter.h"
@@ skipping 200 matching lines @@
 }
 
 TEST_F(QuicTimeWaitListManagerTest, CheckStatelessConnectionIdInTimeWait) {
   EXPECT_FALSE(IsConnectionIdInTimeWait(connection_id_));
   EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_));
   AddStatelessConnectionId(connection_id_);
   EXPECT_EQ(1u, time_wait_list_manager_.num_connections());
   EXPECT_TRUE(IsConnectionIdInTimeWait(connection_id_));
 }
 
+TEST_F(QuicTimeWaitListManagerTest, SendVersionNegotiationPacket) {
+  scoped_ptr<QuicEncryptedPacket> packet(
+      QuicFramer::BuildVersionNegotiationPacket(connection_id_,
+                                                QuicSupportedVersions()));
+  EXPECT_CALL(writer_,
+              WritePacket(_, packet->length(), server_address_.address(),
+                          client_address_, _))
+      .WillOnce(Return(WriteResult(WRITE_STATUS_OK, 1)));
+
+  time_wait_list_manager_.SendVersionNegotiationPacket(
+      connection_id_, QuicSupportedVersions(), server_address_,
+      client_address_);
+  EXPECT_EQ(0u, time_wait_list_manager_.num_connections());
+}
+
 TEST_F(QuicTimeWaitListManagerTest, SendConnectionClose) {
   const size_t kConnectionCloseLength = 100;
   EXPECT_CALL(visitor_, OnConnectionAddedToTimeWaitList(connection_id_));
   std::vector<QuicEncryptedPacket*> termination_packets;
   termination_packets.push_back(new QuicEncryptedPacket(
       new char[kConnectionCloseLength], kConnectionCloseLength, true));
   AddConnectionId(connection_id_, QuicVersionMax(),
                   /*connection_rejected_statelessly=*/false,
                   &termination_packets);
   const int kRandomSequenceNumber = 1;
@@ skipping 307 matching lines @@
     EXPECT_EQ(static_cast<size_t>(FLAGS_quic_time_wait_list_max_connections),
               time_wait_list_manager_.num_connections());
     EXPECT_FALSE(IsConnectionIdInTimeWait(id_to_evict));
     EXPECT_TRUE(IsConnectionIdInTimeWait(current_connection_id));
   }
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net