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// 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_session.h"
#include "net/quic/quic_connection.h"
#include <set>
#include "base/hash_tables.h"
#include "net/quic/crypto/crypto_handshake.h"
#include "net/quic/test_tools/quic_test_utils.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using base::hash_map;
using std::set;
using testing::_;
using testing::InSequence;
namespace net {
namespace test {
namespace {
class TestCryptoStream : public QuicCryptoStream {
public:
explicit TestCryptoStream(QuicSession* session)
: QuicCryptoStream(session) {
}
virtual void OnHandshakeMessage(
const CryptoHandshakeMessage& message) OVERRIDE {
encryption_established_ = true;
handshake_confirmed_ = true;
session()->OnCryptoHandshakeEvent(QuicSession::HANDSHAKE_CONFIRMED);
}
};
class TestStream : public ReliableQuicStream {
public:
TestStream(QuicStreamId id, QuicSession* session)
: ReliableQuicStream(id, session) {
}
virtual uint32 ProcessData(const char* data, uint32 data_len) {
return data_len;
}
MOCK_METHOD0(OnCanWrite, void());
};
class TestSession : public QuicSession {
public:
TestSession(QuicConnection* connection, bool is_server)
: QuicSession(connection, is_server),
crypto_stream_(this) {
}
virtual QuicCryptoStream* GetCryptoStream() OVERRIDE {
return &crypto_stream_;
}
virtual TestStream* CreateOutgoingReliableStream() OVERRIDE {
TestStream* stream = new TestStream(GetNextStreamId(), this);
ActivateStream(stream);
return stream;
}
virtual TestStream* CreateIncomingReliableStream(QuicStreamId id) OVERRIDE {
return new TestStream(id, this);
}
bool IsClosedStream(QuicStreamId id) {
return QuicSession::IsClosedStream(id);
}
ReliableQuicStream* GetIncomingReliableStream(QuicStreamId stream_id) {
return QuicSession::GetIncomingReliableStream(stream_id);
}
// Helper method for gmock
void MarkTwoWriteBlocked() {
this->MarkWriteBlocked(2);
}
TestCryptoStream crypto_stream_;
};
class QuicSessionTest : public ::testing::Test {
protected:
QuicSessionTest()
: guid_(1),
connection_(new MockConnection(guid_, IPEndPoint(), false)),
session_(connection_, true) {
}
void CheckClosedStreams() {
for (int i = kCryptoStreamId; i < 100; i++) {
if (closed_streams_.count(i) == 0) {
EXPECT_FALSE(session_.IsClosedStream(i)) << " stream id: " << i;
} else {
EXPECT_TRUE(session_.IsClosedStream(i)) << " stream id: " << i;
}
}
}
void CloseStream(QuicStreamId id) {
session_.CloseStream(id);
closed_streams_.insert(id);
}
QuicGuid guid_;
MockConnection* connection_;
TestSession session_;
QuicConnectionVisitorInterface* visitor_;
hash_map<QuicStreamId, ReliableQuicStream*>* streams_;
set<QuicStreamId> closed_streams_;
};
TEST_F(QuicSessionTest, IsCryptoHandshakeConfirmed) {
EXPECT_FALSE(session_.IsCryptoHandshakeConfirmed());
CryptoHandshakeMessage message;
session_.crypto_stream_.OnHandshakeMessage(message);
EXPECT_TRUE(session_.IsCryptoHandshakeConfirmed());
}
TEST_F(QuicSessionTest, IsClosedStreamDefault) {
// Ensure that no streams are initially closed.
for (int i = kCryptoStreamId; i < 100; i++) {
EXPECT_FALSE(session_.IsClosedStream(i));
}
}
TEST_F(QuicSessionTest, IsClosedStreamLocallyCreated) {
TestStream* stream2 = session_.CreateOutgoingReliableStream();
EXPECT_EQ(2u, stream2->id());
TestStream* stream4 = session_.CreateOutgoingReliableStream();
EXPECT_EQ(4u, stream4->id());
CheckClosedStreams();
CloseStream(4);
CheckClosedStreams();
CloseStream(2);
CheckClosedStreams();
}
TEST_F(QuicSessionTest, IsClosedStreamPeerCreated) {
session_.GetIncomingReliableStream(3);
session_.GetIncomingReliableStream(5);
CheckClosedStreams();
CloseStream(3);
CheckClosedStreams();
CloseStream(5);
// Create stream id 9, and implicitly 7
session_.GetIncomingReliableStream(9);
CheckClosedStreams();
// Close 9, but make sure 7 is still not closed
CloseStream(9);
CheckClosedStreams();
}
TEST_F(QuicSessionTest, StreamIdTooLarge) {
session_.GetIncomingReliableStream(3);
EXPECT_CALL(*connection_, SendConnectionClose(QUIC_INVALID_STREAM_ID));
session_.GetIncomingReliableStream(105);
}
TEST_F(QuicSessionTest, OnCanWrite) {
TestStream* stream2 = session_.CreateOutgoingReliableStream();
TestStream* stream4 = session_.CreateOutgoingReliableStream();
TestStream* stream6 = session_.CreateOutgoingReliableStream();
session_.MarkWriteBlocked(2);
session_.MarkWriteBlocked(6);
session_.MarkWriteBlocked(4);
InSequence s;
EXPECT_CALL(*stream2, OnCanWrite()).WillOnce(
// Reregister, to test the loop limit.
testing::InvokeWithoutArgs(&session_, &TestSession::MarkTwoWriteBlocked));
EXPECT_CALL(*stream6, OnCanWrite());
EXPECT_CALL(*stream4, OnCanWrite());
EXPECT_FALSE(session_.OnCanWrite());
}
TEST_F(QuicSessionTest, OnCanWriteWithClosedStream) {
TestStream* stream2 = session_.CreateOutgoingReliableStream();
TestStream* stream4 = session_.CreateOutgoingReliableStream();
session_.CreateOutgoingReliableStream(); // stream 6
session_.MarkWriteBlocked(2);
session_.MarkWriteBlocked(6);
session_.MarkWriteBlocked(4);
CloseStream(6);
InSequence s;
EXPECT_CALL(*stream2, OnCanWrite());
EXPECT_CALL(*stream4, OnCanWrite());
EXPECT_TRUE(session_.OnCanWrite());
}
TEST_F(QuicSessionTest, SendGoAway) {
// After sending a GoAway, ensure new incoming streams cannot be created and
// result in a RST being sent.
EXPECT_CALL(*connection_,
SendGoAway(QUIC_PEER_GOING_AWAY, 0u, "Going Away."));
session_.SendGoAway(QUIC_PEER_GOING_AWAY, "Going Away.");
EXPECT_TRUE(session_.goaway_sent());
EXPECT_CALL(*connection_, SendRstStream(3u, QUIC_STREAM_PEER_GOING_AWAY));
EXPECT_FALSE(session_.GetIncomingReliableStream(3u));
}
} // namespace
} // namespace test
} // namespace net
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