Fix a flaky QUIC end_to_end_test when the socket was suddenly unwritable

net/quic/quic_connection_test.cc

 // Copyright (c) 2012 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_connection.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/stl_util.h"
 #include "net/base/net_errors.h"
@@ skipping 3013 matching lines @@
   EXPECT_CALL(visitor_, OnConnectionClosed(QUIC_PEER_GOING_AWAY, true));
   EXPECT_CALL(*send_algorithm_, OnPacketSent(_, _, _, _, _)).Times(0);
   ProcessClosePacket(2, 0);
 }
 
 TEST_P(QuicConnectionTest, SendWhenDisconnected) {
   EXPECT_TRUE(connection_.connected());
   EXPECT_CALL(visitor_, OnConnectionClosed(QUIC_PEER_GOING_AWAY, false));
   connection_.CloseConnection(QUIC_PEER_GOING_AWAY, false);
   EXPECT_FALSE(connection_.connected());
+  EXPECT_FALSE(connection_.CanWriteStreamData());
   QuicPacket* packet = ConstructDataPacket(1, 0, !kEntropyFlag);
   EXPECT_CALL(*send_algorithm_, OnPacketSent(_, _, 1, _, _)).Times(0);
   connection_.SendPacket(
       ENCRYPTION_NONE, 1, packet, kTestEntropyHash, HAS_RETRANSMITTABLE_DATA);
 }
 
 TEST_P(QuicConnectionTest, PublicReset) {
   QuicPublicResetPacket header;
   header.public_header.connection_id = connection_id_;
   header.public_header.reset_flag = true;
@@ skipping 850 matching lines @@
   QuicBlockedFrame blocked;
   blocked.stream_id = 3;
   EXPECT_CALL(visitor_, OnBlockedFrames(_));
   ProcessFramePacket(QuicFrame(&blocked));
   EXPECT_TRUE(ack_alarm->IsSet());
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net