Break out the basic reliable QUIC stream functionality from the

net/quic/quic_stream_sequencer_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_stream_sequencer.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/rand_util.h"
@@ skipping 52 matching lines @@
   QuicStreamOffset close_offset() const { return close_offset_; }
 };
 
 class MockStream : public ReliableQuicStream {
  public:
   MockStream(QuicSession* session, QuicStreamId id)
       : ReliableQuicStream(id, session) {
   }
 
   MOCK_METHOD0(OnFinRead, void());
-  MOCK_METHOD2(ProcessData, uint32(const char* data, uint32 data_len));
+  MOCK_METHOD2(ProcessRawData, uint32(const char* data, uint32 data_len));
   MOCK_METHOD2(CloseConnectionWithDetails, void(QuicErrorCode error,
                                                 const string& details));
   MOCK_METHOD1(Reset, void(QuicRstStreamErrorCode error));
   MOCK_METHOD0(OnCanWrite, void());
+  virtual QuicPriority EffectivePriority() const { return 0; }
 };
 
 namespace {
 
 static const char kPayload[] =
     "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 
 class QuicStreamSequencerTest : public ::testing::Test {
  protected:
   QuicStreamSequencerTest()
@@ skipping 41 matching lines @@
     return true;
   }
 
   MockConnection* connection_;
   MockSession session_;
   testing::StrictMock<MockStream> stream_;
   scoped_ptr<QuicStreamSequencerPeer> sequencer_;
 };
 
 TEST_F(QuicStreamSequencerTest, RejectOldFrame) {
-  EXPECT_CALL(stream_, ProcessData(StrEq("abc"), 3))
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("abc"), 3))
       .WillOnce(Return(3));
 
   EXPECT_TRUE(sequencer_->OnFrame(0, "abc"));
   EXPECT_EQ(0u, sequencer_->frames()->size());
   EXPECT_EQ(3u, sequencer_->num_bytes_consumed());
   // Ignore this - it matches a past sequence number and we should not see it
   // again.
   EXPECT_TRUE(sequencer_->OnFrame(0, "def"));
   EXPECT_EQ(0u, sequencer_->frames()->size());
 }
 
 TEST_F(QuicStreamSequencerTest, RejectOverlyLargeFrame) {
   // TODO(rch): enable when chromium supports EXPECT_DFATAL.
   /*
   EXPECT_DFATAL(sequencer_.reset(new QuicStreamSequencerPeer(2, &stream_)),
                 "Setting max frame memory to 2.  "
                 "Some frames will be impossible to handle.");
 
   EXPECT_DEBUG_DEATH(sequencer_->OnFrame(0, "abc"), "");
   */
 }
 
 TEST_F(QuicStreamSequencerTest, DropFramePastBuffering) {
   sequencer_->SetMemoryLimit(3);
 
   EXPECT_FALSE(sequencer_->OnFrame(3, "abc"));
 }
 
 TEST_F(QuicStreamSequencerTest, RejectBufferedFrame) {
-  EXPECT_CALL(stream_, ProcessData(StrEq("abc"), 3));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("abc"), 3));
 
   EXPECT_TRUE(sequencer_->OnFrame(0, "abc"));
   EXPECT_EQ(1u, sequencer_->frames()->size());
   EXPECT_EQ(0u, sequencer_->num_bytes_consumed());
   // Ignore this - it matches a buffered frame.
   // Right now there's no checking that the payload is consistent.
   EXPECT_TRUE(sequencer_->OnFrame(0, "def"));
   EXPECT_EQ(1u, sequencer_->frames()->size());
 }
 
 TEST_F(QuicStreamSequencerTest, FullFrameConsumed) {
-  EXPECT_CALL(stream_, ProcessData(StrEq("abc"), 3)).WillOnce(Return(3));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("abc"), 3)).WillOnce(Return(3));
 
   EXPECT_TRUE(sequencer_->OnFrame(0, "abc"));
   EXPECT_EQ(0u, sequencer_->frames()->size());
   EXPECT_EQ(3u, sequencer_->num_bytes_consumed());
 }
 
 TEST_F(QuicStreamSequencerTest, EmptyFrame) {
   EXPECT_CALL(stream_,
               CloseConnectionWithDetails(QUIC_INVALID_STREAM_FRAME, _));
   EXPECT_FALSE(sequencer_->OnFrame(0, ""));
   EXPECT_EQ(0u, sequencer_->frames()->size());
   EXPECT_EQ(0u, sequencer_->num_bytes_consumed());
 }
 
 TEST_F(QuicStreamSequencerTest, EmptyFinFrame) {
   EXPECT_CALL(stream_, OnFinRead());
   EXPECT_TRUE(sequencer_->OnFinFrame(0, ""));
   EXPECT_EQ(0u, sequencer_->frames()->size());
   EXPECT_EQ(0u, sequencer_->num_bytes_consumed());
 }
 
 TEST_F(QuicStreamSequencerTest, PartialFrameConsumed) {
-  EXPECT_CALL(stream_, ProcessData(StrEq("abc"), 3)).WillOnce(Return(2));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("abc"), 3)).WillOnce(Return(2));
 
   EXPECT_TRUE(sequencer_->OnFrame(0, "abc"));
   EXPECT_EQ(1u, sequencer_->frames()->size());
   EXPECT_EQ(2u, sequencer_->num_bytes_consumed());
   EXPECT_EQ("c", sequencer_->frames()->find(2)->second);
 }
 
 TEST_F(QuicStreamSequencerTest, NextxFrameNotConsumed) {
-  EXPECT_CALL(stream_, ProcessData(StrEq("abc"), 3)).WillOnce(Return(0));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("abc"), 3)).WillOnce(Return(0));
 
   EXPECT_TRUE(sequencer_->OnFrame(0, "abc"));
   EXPECT_EQ(1u, sequencer_->frames()->size());
   EXPECT_EQ(0u, sequencer_->num_bytes_consumed());
   EXPECT_EQ("abc", sequencer_->frames()->find(0)->second);
 }
 
 TEST_F(QuicStreamSequencerTest, FutureFrameNotProcessed) {
   EXPECT_TRUE(sequencer_->OnFrame(3, "abc"));
   EXPECT_EQ(1u, sequencer_->frames()->size());
   EXPECT_EQ(0u, sequencer_->num_bytes_consumed());
   EXPECT_EQ("abc", sequencer_->frames()->find(3)->second);
 }
 
 TEST_F(QuicStreamSequencerTest, OutOfOrderFrameProcessed) {
   // Buffer the first
   EXPECT_TRUE(sequencer_->OnFrame(6, "ghi"));
   EXPECT_EQ(1u, sequencer_->frames()->size());
   EXPECT_EQ(0u, sequencer_->num_bytes_consumed());
   // Buffer the second
   EXPECT_TRUE(sequencer_->OnFrame(3, "def"));
   EXPECT_EQ(2u, sequencer_->frames()->size());
   EXPECT_EQ(0u, sequencer_->num_bytes_consumed());
 
   InSequence s;
-  EXPECT_CALL(stream_, ProcessData(StrEq("abc"), 3)).WillOnce(Return(3));
-  EXPECT_CALL(stream_, ProcessData(StrEq("def"), 3)).WillOnce(Return(3));
-  EXPECT_CALL(stream_, ProcessData(StrEq("ghi"), 3)).WillOnce(Return(3));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("abc"), 3)).WillOnce(Return(3));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("def"), 3)).WillOnce(Return(3));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("ghi"), 3)).WillOnce(Return(3));
 
   // Ack right away
   EXPECT_TRUE(sequencer_->OnFrame(0, "abc"));
   EXPECT_EQ(9u, sequencer_->num_bytes_consumed());
 
   EXPECT_EQ(0u, sequencer_->frames()->size());
 }
 
 TEST_F(QuicStreamSequencerTest, OutOfOrderFramesProcessedWithBuffering) {
   sequencer_->SetMemoryLimit(9);
 
   // Too far to buffer.
   EXPECT_FALSE(sequencer_->OnFrame(9, "jkl"));
 
   // We can afford to buffer this.
   EXPECT_TRUE(sequencer_->OnFrame(6, "ghi"));
   EXPECT_EQ(0u, sequencer_->num_bytes_consumed());
 
   InSequence s;
-  EXPECT_CALL(stream_, ProcessData(StrEq("abc"), 3)).WillOnce(Return(3));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("abc"), 3)).WillOnce(Return(3));
 
   // Ack right away
   EXPECT_TRUE(sequencer_->OnFrame(0, "abc"));
   EXPECT_EQ(3u, sequencer_->num_bytes_consumed());
 
   // We should be willing to buffer this now.
   EXPECT_TRUE(sequencer_->OnFrame(9, "jkl"));
   EXPECT_EQ(3u, sequencer_->num_bytes_consumed());
 
-  EXPECT_CALL(stream_, ProcessData(StrEq("def"), 3)).WillOnce(Return(3));
-  EXPECT_CALL(stream_, ProcessData(StrEq("ghi"), 3)).WillOnce(Return(3));
-  EXPECT_CALL(stream_, ProcessData(StrEq("jkl"), 3)).WillOnce(Return(3));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("def"), 3)).WillOnce(Return(3));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("ghi"), 3)).WillOnce(Return(3));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("jkl"), 3)).WillOnce(Return(3));
 
   EXPECT_TRUE(sequencer_->OnFrame(3, "def"));
   EXPECT_EQ(12u, sequencer_->num_bytes_consumed());
   EXPECT_EQ(0u, sequencer_->frames()->size());
 }
 
 TEST_F(QuicStreamSequencerTest, OutOfOrderFramesBlockignWithReadv) {
   sequencer_->SetMemoryLimit(9);
   char buffer[20];
   iovec iov[2];
   iov[0].iov_base = &buffer[0];
   iov[0].iov_len = 1;
   iov[1].iov_base = &buffer[1];
   iov[1].iov_len = 2;
 
   // Push abc - process.
   // Push jkl - buffer (not next data)
   // Push def - don't process.
   // Push mno - drop (too far out)
   // Push ghi - buffer (def not processed)
   // Read 2.
   // Push mno - buffer (not all read)
   // Read all
   // Push pqr - process
 
   InSequence s;
-  EXPECT_CALL(stream_, ProcessData(StrEq("abc"), 3)).WillOnce(Return(3));
-  EXPECT_CALL(stream_, ProcessData(StrEq("def"), 3)).WillOnce(Return(0));
-  EXPECT_CALL(stream_, ProcessData(StrEq("pqr"), 3)).WillOnce(Return(3));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("abc"), 3)).WillOnce(Return(3));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("def"), 3)).WillOnce(Return(0));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("pqr"), 3)).WillOnce(Return(3));
 
   EXPECT_TRUE(sequencer_->OnFrame(0, "abc"));
   EXPECT_TRUE(sequencer_->OnFrame(3, "def"));
   EXPECT_TRUE(sequencer_->OnFrame(9, "jkl"));
   EXPECT_FALSE(sequencer_->OnFrame(12, "mno"));
   EXPECT_TRUE(sequencer_->OnFrame(6, "ghi"));
 
   // Read 3 bytes.
   EXPECT_EQ(3, sequencer_->Readv(iov, 2));
   EXPECT_EQ(0, strncmp(buffer, "def", 3));
 
   // Now we have space to bufer this.
   EXPECT_TRUE(sequencer_->OnFrame(12, "mno"));
 
   // Read the remaining 9 bytes.
   iov[1].iov_len = 19;
   EXPECT_EQ(9, sequencer_->Readv(iov, 2));
   EXPECT_EQ(0, strncmp(buffer, "ghijklmno", 9));
 
   EXPECT_TRUE(sequencer_->OnFrame(15, "pqr"));
 }
 
 // Same as above, just using a different method for reading.
 TEST_F(QuicStreamSequencerTest, OutOfOrderFramesBlockignWithGetReadableRegion) {
   sequencer_->SetMemoryLimit(9);
 
   InSequence s;
-  EXPECT_CALL(stream_, ProcessData(StrEq("abc"), 3)).WillOnce(Return(3));
-  EXPECT_CALL(stream_, ProcessData(StrEq("def"), 3)).WillOnce(Return(0));
-  EXPECT_CALL(stream_, ProcessData(StrEq("pqr"), 3)).WillOnce(Return(3));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("abc"), 3)).WillOnce(Return(3));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("def"), 3)).WillOnce(Return(0));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("pqr"), 3)).WillOnce(Return(3));
 
   EXPECT_TRUE(sequencer_->OnFrame(0, "abc"));
   EXPECT_TRUE(sequencer_->OnFrame(3, "def"));
   EXPECT_TRUE(sequencer_->OnFrame(9, "jkl"));
   EXPECT_FALSE(sequencer_->OnFrame(12, "mno"));
   EXPECT_TRUE(sequencer_->OnFrame(6, "ghi"));
 
   // Read 3 bytes.
   const char* expected[] = {"def", "ghi", "jkl"};
   ASSERT_TRUE(VerifyReadableRegions(expected, arraysize(expected)));
@@ skipping 11 matching lines @@
   ASSERT_EQ(9, sequencer_->Readv(&read_iov, 1));
 
   EXPECT_TRUE(sequencer_->OnFrame(15, "pqr"));
 }
 
 // Same as above, just using a different method for reading.
 TEST_F(QuicStreamSequencerTest, MarkConsumed) {
   sequencer_->SetMemoryLimit(9);
 
   InSequence s;
-  EXPECT_CALL(stream_, ProcessData(StrEq("abc"), 3)).WillOnce(Return(0));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("abc"), 3)).WillOnce(Return(0));
 
   EXPECT_TRUE(sequencer_->OnFrame(0, "abc"));
   EXPECT_TRUE(sequencer_->OnFrame(3, "def"));
   EXPECT_TRUE(sequencer_->OnFrame(6, "ghi"));
 
   // Peek into the data.
   const char* expected[] = {"abc", "def", "ghi"};
   ASSERT_TRUE(VerifyReadableRegions(expected, arraysize(expected)));
 
   // Consume 1 byte.
@@ skipping 11 matching lines @@
   // Consume 5 bytes.
   sequencer_->MarkConsumed(5);
   // Verify data.
   const char* expected4[] = {"i"};
   ASSERT_TRUE(VerifyReadableRegions(expected4, arraysize(expected4)));
 }
 
 TEST_F(QuicStreamSequencerTest, MarkConsumedError) {
   // TODO(rch): enable when chromium supports EXPECT_DFATAL.
   /*
-  EXPECT_CALL(stream_, ProcessData(StrEq("abc"), 3)).WillOnce(Return(0));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("abc"), 3)).WillOnce(Return(0));
 
   EXPECT_TRUE(sequencer_->OnFrame(0, "abc"));
   EXPECT_TRUE(sequencer_->OnFrame(9, "jklmnopqrstuvwxyz"));
 
   // Peek into the data.  Only the first chunk should be readable
   // because of the missing data.
   const char* expected[] = {"abc"};
   ASSERT_TRUE(VerifyReadableRegions(expected, arraysize(expected)));
 
   // Now, attempt to mark consumed more data than was readable
   // and expect the stream to be closed.
   EXPECT_CALL(stream_, Reset(QUIC_ERROR_PROCESSING_STREAM));
   EXPECT_DFATAL(sequencer_->MarkConsumed(4),
                 "Invalid argument to MarkConsumed.  num_bytes_consumed_: 3 "
                 "end_offset: 4 offset: 9 length: 17");
   */
 }
 
 TEST_F(QuicStreamSequencerTest, MarkConsumedWithMissingPacket) {
   InSequence s;
-  EXPECT_CALL(stream_, ProcessData(StrEq("abc"), 3)).WillOnce(Return(0));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("abc"), 3)).WillOnce(Return(0));
 
   EXPECT_TRUE(sequencer_->OnFrame(0, "abc"));
   EXPECT_TRUE(sequencer_->OnFrame(3, "def"));
   // Missing packet: 6, ghi
   EXPECT_TRUE(sequencer_->OnFrame(9, "jkl"));
 
   const char* expected[] = {"abc", "def"};
   ASSERT_TRUE(VerifyReadableRegions(expected, arraysize(expected)));
 
   sequencer_->MarkConsumed(6);
 }
 
 TEST_F(QuicStreamSequencerTest, BasicHalfCloseOrdered) {
   InSequence s;
 
-  EXPECT_CALL(stream_, ProcessData(StrEq("abc"), 3)).WillOnce(Return(3));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("abc"), 3)).WillOnce(Return(3));
   EXPECT_CALL(stream_, OnFinRead());
   EXPECT_TRUE(sequencer_->OnFinFrame(0, "abc"));
 
   EXPECT_EQ(3u, sequencer_->close_offset());
 }
 
 TEST_F(QuicStreamSequencerTest, BasicHalfCloseUnorderedWithFlush) {
   sequencer_->OnFinFrame(6, "");
   EXPECT_EQ(6u, sequencer_->close_offset());
   InSequence s;
-  EXPECT_CALL(stream_, ProcessData(StrEq("abc"), 3)).WillOnce(Return(3));
-  EXPECT_CALL(stream_, ProcessData(StrEq("def"), 3)).WillOnce(Return(3));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("abc"), 3)).WillOnce(Return(3));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("def"), 3)).WillOnce(Return(3));
   EXPECT_CALL(stream_, OnFinRead());
 
   EXPECT_TRUE(sequencer_->OnFrame(3, "def"));
   EXPECT_TRUE(sequencer_->OnFrame(0, "abc"));
 }
 
 TEST_F(QuicStreamSequencerTest, BasicHalfUnordered) {
   sequencer_->OnFinFrame(3, "");
   EXPECT_EQ(3u, sequencer_->close_offset());
   InSequence s;
-  EXPECT_CALL(stream_, ProcessData(StrEq("abc"), 3)).WillOnce(Return(3));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("abc"), 3)).WillOnce(Return(3));
   EXPECT_CALL(stream_, OnFinRead());
 
   EXPECT_TRUE(sequencer_->OnFrame(0, "abc"));
 }
 
 TEST_F(QuicStreamSequencerTest, TerminateWithReadv) {
   char buffer[3];
 
   sequencer_->OnFinFrame(3, "");
   EXPECT_EQ(3u, sequencer_->close_offset());
 
   EXPECT_FALSE(sequencer_->IsClosed());
 
-  EXPECT_CALL(stream_, ProcessData(StrEq("abc"), 3)).WillOnce(Return(0));
+  EXPECT_CALL(stream_, ProcessRawData(StrEq("abc"), 3)).WillOnce(Return(0));
   EXPECT_TRUE(sequencer_->OnFrame(0, "abc"));
 
   iovec iov = { &buffer[0], 3 };
   int bytes_read = sequencer_->Readv(&iov, 1);
   EXPECT_EQ(3, bytes_read);
   EXPECT_TRUE(sequencer_->IsClosed());
 }
 
 TEST_F(QuicStreamSequencerTest, MutipleOffsets) {
   sequencer_->OnFinFrame(3, "");
@@ skipping 47 matching lines @@
   string output_;
   FrameList list_;
 };
 
 // All frames are processed as soon as we have sequential data.
 // Infinite buffering, so all frames are acked right away.
 TEST_F(QuicSequencerRandomTest, RandomFramesNoDroppingNoBackup) {
   InSequence s;
   for (size_t i = 0; i < list_.size(); ++i) {
     string* data = &list_[i].second;
-    EXPECT_CALL(stream_, ProcessData(StrEq(*data), data->size()))
+    EXPECT_CALL(stream_, ProcessRawData(StrEq(*data), data->size()))
         .WillOnce(Return(data->size()));
   }
 
   while (!list_.empty()) {
     int index = OneToN(list_.size()) - 1;
     LOG(ERROR) << "Sending index " << index << " "
                << list_[index].second.data();
     EXPECT_TRUE(sequencer_->OnFrame(list_[index].first,
                                     list_[index].second.data()));
 
     list_.erase(list_.begin() + index);
   }
 }
 
 // All frames are processed as soon as we have sequential data.
 // Buffering, so some frames are rejected.
 TEST_F(QuicSequencerRandomTest, RandomFramesDroppingNoBackup) {
   sequencer_->SetMemoryLimit(26);
 
   InSequence s;
   for (size_t i = 0; i < list_.size(); ++i) {
     string* data = &list_[i].second;
-    EXPECT_CALL(stream_, ProcessData(StrEq(*data), data->size()))
+    EXPECT_CALL(stream_, ProcessRawData(StrEq(*data), data->size()))
         .WillOnce(Return(data->size()));
   }
 
   while (!list_.empty()) {
     int index = OneToN(list_.size()) - 1;
     LOG(ERROR) << "Sending index " << index << " "
                << list_[index].second.data();
     bool acked = sequencer_->OnFrame(list_[index].first,
                                      list_[index].second.data());
 
     if (acked) {
       list_.erase(list_.begin() + index);
     }
   }
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net