Project import generated by Copybara.

PiperOrigin-RevId: 237361882
Change-Id: I109a68f44db867b20f8c6a7732b0ce657133e52a
diff --git a/quic/test_tools/quic_session_peer.h b/quic/test_tools/quic_session_peer.h
new file mode 100644
index 0000000..8c2e72c
--- /dev/null
+++ b/quic/test_tools/quic_session_peer.h
@@ -0,0 +1,81 @@
+// 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.
+
+#ifndef QUICHE_QUIC_TEST_TOOLS_QUIC_SESSION_PEER_H_
+#define QUICHE_QUIC_TEST_TOOLS_QUIC_SESSION_PEER_H_
+
+#include <cstdint>
+#include <map>
+#include <memory>
+
+#include "base/macros.h"
+#include "net/third_party/quiche/src/quic/core/quic_packets.h"
+#include "net/third_party/quiche/src/quic/core/quic_session.h"
+#include "net/third_party/quiche/src/quic/core/quic_write_blocked_list.h"
+#include "net/third_party/quiche/src/quic/platform/api/quic_containers.h"
+
+namespace quic {
+
+class QuicCryptoStream;
+class QuicSession;
+class QuicStream;
+
+namespace test {
+
+class QuicSessionPeer {
+ public:
+  QuicSessionPeer() = delete;
+
+  static QuicStreamId GetNextOutgoingBidirectionalStreamId(
+      QuicSession* session);
+  static QuicStreamId GetNextOutgoingUnidirectionalStreamId(
+      QuicSession* session);
+  static void SetNextOutgoingBidirectionalStreamId(QuicSession* session,
+                                                   QuicStreamId id);
+  static void SetMaxOpenIncomingStreams(QuicSession* session,
+                                        uint32_t max_streams);
+  static void SetMaxOpenOutgoingStreams(QuicSession* session,
+                                        uint32_t max_streams);
+  static QuicCryptoStream* GetMutableCryptoStream(QuicSession* session);
+  static QuicWriteBlockedList* GetWriteBlockedStreams(QuicSession* session);
+  static QuicStream* GetOrCreateDynamicStream(QuicSession* session,
+                                              QuicStreamId stream_id);
+  static std::map<QuicStreamId, QuicStreamOffset>&
+  GetLocallyClosedStreamsHighestOffset(QuicSession* session);
+  static QuicSession::StaticStreamMap& static_streams(QuicSession* session);
+  static QuicSession::DynamicStreamMap& dynamic_streams(QuicSession* session);
+  static const QuicSession::ClosedStreams& closed_streams(QuicSession* session);
+  static QuicSession::ZombieStreamMap& zombie_streams(QuicSession* session);
+  static QuicUnorderedSet<QuicStreamId>* GetDrainingStreams(
+      QuicSession* session);
+  static void ActivateStream(QuicSession* session,
+                             std::unique_ptr<QuicStream> stream);
+
+  // Discern the state of a stream.  Exactly one of these should be true at a
+  // time for any stream id > 0 (other than the special streams 1 and 3).
+  static bool IsStreamClosed(QuicSession* session, QuicStreamId id);
+  static bool IsStreamCreated(QuicSession* session, QuicStreamId id);
+  static bool IsStreamAvailable(QuicSession* session, QuicStreamId id);
+
+  static QuicStream* GetStream(QuicSession* session, QuicStreamId id);
+  static bool IsStreamWriteBlocked(QuicSession* session, QuicStreamId id);
+  static QuicAlarm* GetCleanUpClosedStreamsAlarm(QuicSession* session);
+  static LegacyQuicStreamIdManager* GetStreamIdManager(QuicSession* session);
+  static UberQuicStreamIdManager* v99_streamid_manager(QuicSession* session);
+  static QuicStreamIdManager* v99_bidirectional_stream_id_manager(
+      QuicSession* session);
+  static QuicStreamIdManager* v99_unidirectional_stream_id_manager(
+      QuicSession* session);
+  static void SendRstStreamInner(QuicSession* session,
+                                 QuicStreamId id,
+                                 QuicRstStreamErrorCode error,
+                                 QuicStreamOffset bytes_written,
+                                 bool close_write_side_only);
+};
+
+}  // namespace test
+
+}  // namespace quic
+
+#endif  // QUICHE_QUIC_TEST_TOOLS_QUIC_SESSION_PEER_H_