blob: 139e90112b7f79fbcdf22decc7b94245591d041e [file] [log] [blame]
// Copyright 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/websockets/websocket_inflater.h"
#include <stdint.h>
#include <string>
#include <vector>
#include "base/memory/ref_counted.h"
#include "net/base/io_buffer.h"
#include "net/websockets/websocket_deflater.h"
#include "net/websockets/websocket_test_util.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace net {
namespace {
std::string ToString(IOBufferWithSize* buffer) {
return std::string(buffer->data(), buffer->size());
}
TEST(WebSocketInflaterTest, Construct) {
WebSocketInflater inflater;
ASSERT_TRUE(inflater.Initialize(15));
EXPECT_EQ(0u, inflater.CurrentOutputSize());
}
TEST(WebSocketInflaterTest, InflateHelloTakeOverContext) {
WebSocketInflater inflater;
ASSERT_TRUE(inflater.Initialize(15));
scoped_refptr<IOBufferWithSize> actual1, actual2;
ASSERT_TRUE(inflater.AddBytes("\xf2\x48\xcd\xc9\xc9\x07\x00", 7));
ASSERT_TRUE(inflater.Finish());
actual1 = inflater.GetOutput(inflater.CurrentOutputSize());
ASSERT_TRUE(actual1);
EXPECT_EQ("Hello", ToString(actual1.get()));
EXPECT_EQ(0u, inflater.CurrentOutputSize());
ASSERT_TRUE(inflater.AddBytes("\xf2\x00\x11\x00\x00", 5));
ASSERT_TRUE(inflater.Finish());
actual2 = inflater.GetOutput(inflater.CurrentOutputSize());
ASSERT_TRUE(actual2);
EXPECT_EQ("Hello", ToString(actual2.get()));
EXPECT_EQ(0u, inflater.CurrentOutputSize());
}
TEST(WebSocketInflaterTest, InflateHelloSmallCapacity) {
WebSocketInflater inflater(1, 1);
ASSERT_TRUE(inflater.Initialize(15));
std::string actual;
ASSERT_TRUE(inflater.AddBytes("\xf2\x48\xcd\xc9\xc9\x07\x00", 7));
ASSERT_TRUE(inflater.Finish());
for (size_t i = 0; i < 5; ++i) {
ASSERT_EQ(1u, inflater.CurrentOutputSize());
scoped_refptr<IOBufferWithSize> buffer = inflater.GetOutput(1);
ASSERT_TRUE(buffer);
ASSERT_EQ(1, buffer->size());
actual += ToString(buffer.get());
}
EXPECT_EQ("Hello", actual);
EXPECT_EQ(0u, inflater.CurrentOutputSize());
}
TEST(WebSocketInflaterTest, InflateHelloSmallCapacityGetTotalOutput) {
WebSocketInflater inflater(1, 1);
ASSERT_TRUE(inflater.Initialize(15));
scoped_refptr<IOBufferWithSize> actual;
ASSERT_TRUE(inflater.AddBytes("\xf2\x48\xcd\xc9\xc9\x07\x00", 7));
ASSERT_TRUE(inflater.Finish());
ASSERT_EQ(1u, inflater.CurrentOutputSize());
actual = inflater.GetOutput(1024);
EXPECT_EQ("Hello", ToString(actual));
EXPECT_EQ(0u, inflater.CurrentOutputSize());
}
TEST(WebSocketInflaterTest, InflateInvalidData) {
WebSocketInflater inflater;
ASSERT_TRUE(inflater.Initialize(15));
EXPECT_FALSE(inflater.AddBytes("\xf2\x48\xcd\xc9INVALID DATA", 16));
}
TEST(WebSocketInflaterTest, ChokedInvalidData) {
WebSocketInflater inflater(1, 1);
ASSERT_TRUE(inflater.Initialize(15));
EXPECT_TRUE(inflater.AddBytes("\xf2\x48\xcd\xc9INVALID DATA", 16));
EXPECT_TRUE(inflater.Finish());
EXPECT_EQ(1u, inflater.CurrentOutputSize());
EXPECT_FALSE(inflater.GetOutput(1024));
}
TEST(WebSocketInflaterTest, MultipleAddBytesCalls) {
WebSocketInflater inflater;
ASSERT_TRUE(inflater.Initialize(15));
std::string input("\xf2\x48\xcd\xc9\xc9\x07\x00", 7);
scoped_refptr<IOBufferWithSize> actual;
for (size_t i = 0; i < input.size(); ++i) {
ASSERT_TRUE(inflater.AddBytes(&input[i], 1));
}
ASSERT_TRUE(inflater.Finish());
actual = inflater.GetOutput(5);
ASSERT_TRUE(actual);
EXPECT_EQ("Hello", ToString(actual.get()));
}
TEST(WebSocketInflaterTest, Reset) {
WebSocketInflater inflater;
ASSERT_TRUE(inflater.Initialize(15));
scoped_refptr<IOBufferWithSize> actual1, actual2;
ASSERT_TRUE(inflater.AddBytes("\xf2\x48\xcd\xc9\xc9\x07\x00", 7));
ASSERT_TRUE(inflater.Finish());
actual1 = inflater.GetOutput(inflater.CurrentOutputSize());
ASSERT_TRUE(actual1);
EXPECT_EQ("Hello", ToString(actual1.get()));
EXPECT_EQ(0u, inflater.CurrentOutputSize());
// Reset the stream with a block [BFINAL = 1, BTYPE = 00, LEN = 0]
ASSERT_TRUE(inflater.AddBytes("\x01", 1));
ASSERT_TRUE(inflater.Finish());
ASSERT_EQ(0u, inflater.CurrentOutputSize());
ASSERT_TRUE(inflater.AddBytes("\xf2\x48\xcd\xc9\xc9\x07\x00", 7));
ASSERT_TRUE(inflater.Finish());
actual2 = inflater.GetOutput(inflater.CurrentOutputSize());
ASSERT_TRUE(actual2);
EXPECT_EQ("Hello", ToString(actual2.get()));
EXPECT_EQ(0u, inflater.CurrentOutputSize());
}
TEST(WebSocketInflaterTest, ResetAndLostContext) {
WebSocketInflater inflater;
scoped_refptr<IOBufferWithSize> actual1, actual2;
ASSERT_TRUE(inflater.Initialize(15));
ASSERT_TRUE(inflater.AddBytes("\xf2\x48\xcd\xc9\xc9\x07\x00", 7));
ASSERT_TRUE(inflater.Finish());
actual1 = inflater.GetOutput(inflater.CurrentOutputSize());
ASSERT_TRUE(actual1);
EXPECT_EQ("Hello", ToString(actual1.get()));
EXPECT_EQ(0u, inflater.CurrentOutputSize());
// Reset the stream with a block [BFINAL = 1, BTYPE = 00, LEN = 0]
ASSERT_TRUE(inflater.AddBytes("\x01", 1));
ASSERT_TRUE(inflater.Finish());
ASSERT_EQ(0u, inflater.CurrentOutputSize());
// The context is already reset.
ASSERT_FALSE(inflater.AddBytes("\xf2\x00\x11\x00\x00", 5));
}
TEST(WebSocketInflaterTest, CallAddBytesAndFinishWithoutGetOutput) {
WebSocketInflater inflater;
scoped_refptr<IOBufferWithSize> actual1, actual2;
ASSERT_TRUE(inflater.Initialize(15));
ASSERT_TRUE(inflater.AddBytes("\xf2\x48\xcd\xc9\xc9\x07\x00", 7));
ASSERT_TRUE(inflater.Finish());
EXPECT_EQ(5u, inflater.CurrentOutputSize());
// This is a test for detecting memory leaks with valgrind.
}
TEST(WebSocketInflaterTest, CallAddBytesAndFinishWithoutGetOutputChoked) {
WebSocketInflater inflater(1, 1);
scoped_refptr<IOBufferWithSize> actual1, actual2;
ASSERT_TRUE(inflater.Initialize(15));
ASSERT_TRUE(inflater.AddBytes("\xf2\x48\xcd\xc9\xc9\x07\x00", 7));
ASSERT_TRUE(inflater.Finish());
EXPECT_EQ(1u, inflater.CurrentOutputSize());
// This is a test for detecting memory leaks with valgrind.
}
TEST(WebSocketInflaterTest, LargeRandomDeflateInflate) {
const size_t size = 64 * 1024;
LinearCongruentialGenerator generator(133);
std::vector<char> input;
std::vector<char> output;
scoped_refptr<IOBufferWithSize> compressed;
WebSocketDeflater deflater(WebSocketDeflater::TAKE_OVER_CONTEXT);
ASSERT_TRUE(deflater.Initialize(8));
WebSocketInflater inflater(256, 256);
ASSERT_TRUE(inflater.Initialize(8));
for (size_t i = 0; i < size; ++i)
input.push_back(static_cast<char>(generator.Generate()));
ASSERT_TRUE(deflater.AddBytes(&input[0], input.size()));
ASSERT_TRUE(deflater.Finish());
compressed = deflater.GetOutput(deflater.CurrentOutputSize());
ASSERT_TRUE(compressed);
ASSERT_EQ(0u, deflater.CurrentOutputSize());
ASSERT_TRUE(inflater.AddBytes(compressed->data(), compressed->size()));
ASSERT_TRUE(inflater.Finish());
while (inflater.CurrentOutputSize() > 0) {
scoped_refptr<IOBufferWithSize> uncompressed =
inflater.GetOutput(inflater.CurrentOutputSize());
ASSERT_TRUE(uncompressed);
output.insert(output.end(),
uncompressed->data(),
uncompressed->data() + uncompressed->size());
}
EXPECT_EQ(output, input);
}
} // unnamed namespace
} // namespace net