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// Copyright (c) 2013 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/spdy/spdy_write_queue.h"
#include <cstddef>
#include <cstring>
#include <string>
#include "base/basictypes.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/strings/string_number_conversions.h"
#include "net/base/net_log.h"
#include "net/base/request_priority.h"
#include "net/spdy/spdy_frame_producer.h"
#include "net/spdy/spdy_stream.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace net {
namespace {
class SpdyWriteQueueTest : public ::testing::Test {};
// Makes a SpdyFrameProducer producing a frame with the data in the
// given string.
scoped_ptr<SpdyFrameProducer> StringToProducer(const std::string& s) {
scoped_ptr<char[]> data(new char[s.size()]);
std::memcpy(data.get(), s.data(), s.size());
return scoped_ptr<SpdyFrameProducer>(
new SimpleFrameProducer(
scoped_ptr<SpdyFrame>(
new SpdyFrame(data.release(), s.size(), true))));
}
// Makes a SpdyFrameProducer producing a frame with the data in the
// given int (converted to a string).
scoped_ptr<SpdyFrameProducer> IntToProducer(int i) {
return StringToProducer(base::IntToString(i));
}
// Produces a frame with the given producer and returns a copy of its
// data as a string.
std::string ProducerToString(scoped_ptr<SpdyFrameProducer> producer) {
scoped_ptr<SpdyFrame> frame = producer->ProduceFrame();
return std::string(frame->data(), frame->size());
}
// Produces a frame with the given producer and returns a copy of its
// data as an int (converted from a string).
int ProducerToInt(scoped_ptr<SpdyFrameProducer> producer) {
int i = 0;
EXPECT_TRUE(base::StringToInt(ProducerToString(producer.Pass()), &i));
return i;
}
// Makes a SpdyStream with the given priority and a NULL SpdySession
// -- be careful to not call any functions that expect the session to
// be there.
SpdyStream* MakeTestStream(RequestPriority priority) {
return new SpdyStream(NULL, "", priority, 0, 0, false, BoundNetLog());
}
// Add some frame producers of different priority. The producers
// should be dequeued in priority order with their associated stream.
TEST_F(SpdyWriteQueueTest, DequeuesByPriority) {
SpdyWriteQueue write_queue;
scoped_ptr<SpdyFrameProducer> producer_low = StringToProducer("LOW");
scoped_ptr<SpdyFrameProducer> producer_medium = StringToProducer("MEDIUM");
scoped_ptr<SpdyFrameProducer> producer_highest = StringToProducer("HIGHEST");
// A NULL stream should still work.
scoped_refptr<SpdyStream> stream_low(NULL);
scoped_refptr<SpdyStream> stream_medium(MakeTestStream(MEDIUM));
scoped_refptr<SpdyStream> stream_highest(MakeTestStream(HIGHEST));
write_queue.Enqueue(LOW, producer_low.Pass(), stream_low);
write_queue.Enqueue(MEDIUM, producer_medium.Pass(), stream_medium);
write_queue.Enqueue(HIGHEST, producer_highest.Pass(), stream_highest);
scoped_ptr<SpdyFrameProducer> frame_producer;
scoped_refptr<SpdyStream> stream;
ASSERT_TRUE(write_queue.Dequeue(&frame_producer, &stream));
EXPECT_EQ("HIGHEST", ProducerToString(frame_producer.Pass()));
EXPECT_EQ(stream_highest, stream);
ASSERT_TRUE(write_queue.Dequeue(&frame_producer, &stream));
EXPECT_EQ("MEDIUM", ProducerToString(frame_producer.Pass()));
EXPECT_EQ(stream_medium, stream);
ASSERT_TRUE(write_queue.Dequeue(&frame_producer, &stream));
EXPECT_EQ("LOW", ProducerToString(frame_producer.Pass()));
EXPECT_EQ(stream_low, stream);
EXPECT_FALSE(write_queue.Dequeue(&frame_producer, &stream));
}
// Add some frame producers with the same priority. The producers
// should be dequeued in FIFO order with their associated stream.
TEST_F(SpdyWriteQueueTest, DequeuesFIFO) {
SpdyWriteQueue write_queue;
scoped_ptr<SpdyFrameProducer> producer1 = IntToProducer(1);
scoped_ptr<SpdyFrameProducer> producer2 = IntToProducer(2);
scoped_ptr<SpdyFrameProducer> producer3 = IntToProducer(3);
scoped_refptr<SpdyStream> stream1(MakeTestStream(DEFAULT_PRIORITY));
scoped_refptr<SpdyStream> stream2(MakeTestStream(DEFAULT_PRIORITY));
scoped_refptr<SpdyStream> stream3(MakeTestStream(DEFAULT_PRIORITY));
write_queue.Enqueue(DEFAULT_PRIORITY, producer1.Pass(), stream1);
write_queue.Enqueue(DEFAULT_PRIORITY, producer2.Pass(), stream2);
write_queue.Enqueue(DEFAULT_PRIORITY, producer3.Pass(), stream3);
scoped_ptr<SpdyFrameProducer> frame_producer;
scoped_refptr<SpdyStream> stream;
ASSERT_TRUE(write_queue.Dequeue(&frame_producer, &stream));
EXPECT_EQ(1, ProducerToInt(frame_producer.Pass()));
EXPECT_EQ(stream1, stream);
ASSERT_TRUE(write_queue.Dequeue(&frame_producer, &stream));
EXPECT_EQ(2, ProducerToInt(frame_producer.Pass()));
EXPECT_EQ(stream2, stream);
ASSERT_TRUE(write_queue.Dequeue(&frame_producer, &stream));
EXPECT_EQ(3, ProducerToInt(frame_producer.Pass()));
EXPECT_EQ(stream3, stream);
EXPECT_FALSE(write_queue.Dequeue(&frame_producer, &stream));
}
// Enqueue a bunch of writes and then call
// RemovePendingWritesForStream() on one of the streams. No dequeued
// write should be for that stream.
TEST_F(SpdyWriteQueueTest, RemovePendingWritesForStream) {
SpdyWriteQueue write_queue;
scoped_refptr<SpdyStream> stream1(MakeTestStream(DEFAULT_PRIORITY));
scoped_refptr<SpdyStream> stream2(MakeTestStream(DEFAULT_PRIORITY));
for (int i = 0; i < 100; ++i) {
scoped_refptr<SpdyStream> stream = ((i % 3) == 0) ? stream1 : stream2;
write_queue.Enqueue(DEFAULT_PRIORITY, IntToProducer(i), stream);
}
write_queue.RemovePendingWritesForStream(stream2);
for (int i = 0; i < 100; i += 3) {
scoped_ptr<SpdyFrameProducer> frame_producer;
scoped_refptr<SpdyStream> stream;
ASSERT_TRUE(write_queue.Dequeue(&frame_producer, &stream));
EXPECT_EQ(i, ProducerToInt(frame_producer.Pass()));
EXPECT_EQ(stream1, stream);
}
scoped_ptr<SpdyFrameProducer> frame_producer;
scoped_refptr<SpdyStream> stream;
EXPECT_FALSE(write_queue.Dequeue(&frame_producer, &stream));
}
// Enqueue a bunch of writes and then call Clear(). The write queue
// should clean up the memory properly, and Dequeue() should return
// false.
TEST_F(SpdyWriteQueueTest, Clear) {
SpdyWriteQueue write_queue;
for (int i = 0; i < 100; ++i) {
write_queue.Enqueue(DEFAULT_PRIORITY, IntToProducer(i), NULL);
}
write_queue.Clear();
scoped_ptr<SpdyFrameProducer> frame_producer;
scoped_refptr<SpdyStream> stream;
EXPECT_FALSE(write_queue.Dequeue(&frame_producer, &stream));
}
}
} // namespace net
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