Fixing a bug in the QUIC code where we could create new streams

net/tools/quic/quic_server_session_test.cc

Index: net/tools/quic/quic_server_session_test.cc
diff --git a/net/tools/quic/quic_server_session_test.cc b/net/tools/quic/quic_server_session_test.cc
index 665ca6bc18ee38f88872a9d0f15f9d258c3843f2..b48021b9b6a565035fdda7b40d8caebc697e6449 100644
--- a/net/tools/quic/quic_server_session_test.cc
+++ b/net/tools/quic/quic_server_session_test.cc
@@ -18,6 +18,7 @@
 #include "net/quic/test_tools/quic_session_peer.h"
 #include "net/quic/test_tools/quic_sustained_bandwidth_recorder_peer.h"
 #include "net/quic/test_tools/quic_test_utils.h"
+#include "net/test/gtest_util.h"
 #include "net/tools/quic/quic_spdy_server_stream.h"
 #include "net/tools/quic/test_tools/quic_test_utils.h"
 #include "testing/gmock/include/gmock/gmock.h"
@@ -262,6 +263,13 @@ TEST_P(QuicServerSessionTest, GetEvenIncomingError) {
             QuicServerSessionPeer::GetIncomingDataStream(session_.get(), 4));
 }
 
+TEST_P(QuicServerSessionTest, GetStreamDisconnected) {
+  // Don't create new streams if the connection is disconnected.
+  QuicConnectionPeer::CloseConnection(connection_);
+  EXPECT_DFATAL(QuicServerSessionPeer::GetIncomingDataStream(session_.get(), 4),
+                "ShouldCreateIncomingDataStream called when disconnected");
+}
+
 TEST_P(QuicServerSessionTest, SetFecProtectionFromConfig) {
   ValueRestore<bool> old_flag(&FLAGS_enable_quic_fec, true);