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// Copyright 2015 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 "remoting/base/buffered_socket_writer.h"
#include <stdlib.h>
#include "base/bind.h"
#include "base/message_loop/message_loop.h"
#include "base/run_loop.h"
#include "net/base/io_buffer.h"
#include "net/base/net_errors.h"
#include "net/socket/socket_test_util.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace remoting {
namespace {
const int kTestBufferSize = 10000;
const size_t kWriteChunkSize = 1024U;
class SocketDataProvider: public net::SocketDataProvider {
public:
SocketDataProvider()
: write_limit_(-1), async_write_(false), next_write_error_(net::OK) {}
net::MockRead OnRead() override {
return net::MockRead(net::ASYNC, net::ERR_IO_PENDING);
}
net::MockWriteResult OnWrite(const std::string& data) override {
if (next_write_error_ != net::OK) {
int r = next_write_error_;
next_write_error_ = net::OK;
return net::MockWriteResult(async_write_ ? net::ASYNC : net::SYNCHRONOUS,
r);
}
int size = data.size();
if (write_limit_ > 0)
size = std::min(write_limit_, size);
written_data_.append(data, 0, size);
return net::MockWriteResult(async_write_ ? net::ASYNC : net::SYNCHRONOUS,
size);
}
bool AllReadDataConsumed() const override {
return true;
}
bool AllWriteDataConsumed() const override {
return true;
}
void Reset() override {}
std::string written_data() { return written_data_; }
void set_write_limit(int limit) { write_limit_ = limit; }
void set_async_write(bool async_write) { async_write_ = async_write; }
void set_next_write_error(int error) { next_write_error_ = error; }
private:
std::string written_data_;
int write_limit_;
bool async_write_;
int next_write_error_;
};
} // namespace
class BufferedSocketWriterTest : public testing::Test {
public:
BufferedSocketWriterTest()
: write_error_(0) {
}
void DestroyWriter() {
writer_.reset();
socket_.reset();
}
void Unexpected() {
EXPECT_TRUE(false);
}
protected:
void SetUp() override {
socket_.reset(new net::MockTCPClientSocket(net::AddressList(), &net_log_,
&socket_data_provider_));
socket_data_provider_.set_connect_data(
net::MockConnect(net::SYNCHRONOUS, net::OK));
EXPECT_EQ(net::OK, socket_->Connect(net::CompletionCallback()));
writer_ = BufferedSocketWriter::CreateForSocket(
socket_.get(), base::Bind(&BufferedSocketWriterTest::OnWriteFailed,
base::Unretained(this)));
test_buffer_ = new net::IOBufferWithSize(kTestBufferSize);
test_buffer_2_ = new net::IOBufferWithSize(kTestBufferSize);
for (int i = 0; i< kTestBufferSize; ++i) {
test_buffer_->data()[i] = rand() % 256;
test_buffer_2_->data()[i] = rand() % 256;
}
}
void OnWriteFailed(int error) {
write_error_ = error;
}
void TestWrite() {
writer_->Write(test_buffer_, base::Closure());
writer_->Write(test_buffer_2_, base::Closure());
base::RunLoop().RunUntilIdle();
ASSERT_EQ(static_cast<size_t>(test_buffer_->size() +
test_buffer_2_->size()),
socket_data_provider_.written_data().size());
EXPECT_EQ(0, memcmp(test_buffer_->data(),
socket_data_provider_.written_data().data(),
test_buffer_->size()));
EXPECT_EQ(0, memcmp(test_buffer_2_->data(),
socket_data_provider_.written_data().data() +
test_buffer_->size(),
test_buffer_2_->size()));
}
void TestAppendInCallback() {
writer_->Write(test_buffer_, base::Bind(
base::IgnoreResult(&BufferedSocketWriter::Write),
base::Unretained(writer_.get()), test_buffer_2_,
base::Closure()));
base::RunLoop().RunUntilIdle();
ASSERT_EQ(static_cast<size_t>(test_buffer_->size() +
test_buffer_2_->size()),
socket_data_provider_.written_data().size());
EXPECT_EQ(0, memcmp(test_buffer_->data(),
socket_data_provider_.written_data().data(),
test_buffer_->size()));
EXPECT_EQ(0, memcmp(test_buffer_2_->data(),
socket_data_provider_.written_data().data() +
test_buffer_->size(),
test_buffer_2_->size()));
}
base::MessageLoop message_loop_;
net::NetLog net_log_;
SocketDataProvider socket_data_provider_;
scoped_ptr<net::StreamSocket> socket_;
scoped_ptr<BufferedSocketWriter> writer_;
scoped_refptr<net::IOBufferWithSize> test_buffer_;
scoped_refptr<net::IOBufferWithSize> test_buffer_2_;
int write_error_;
};
// Test synchronous write.
TEST_F(BufferedSocketWriterTest, WriteFull) {
TestWrite();
}
// Test synchronous write in 1k chunks.
TEST_F(BufferedSocketWriterTest, WriteChunks) {
socket_data_provider_.set_write_limit(kWriteChunkSize);
TestWrite();
}
// Test asynchronous write.
TEST_F(BufferedSocketWriterTest, WriteAsync) {
socket_data_provider_.set_async_write(true);
socket_data_provider_.set_write_limit(kWriteChunkSize);
TestWrite();
}
// Make sure we can call Write() from the done callback.
TEST_F(BufferedSocketWriterTest, AppendInCallbackSync) {
TestAppendInCallback();
}
// Make sure we can call Write() from the done callback.
TEST_F(BufferedSocketWriterTest, AppendInCallbackAsync) {
socket_data_provider_.set_async_write(true);
socket_data_provider_.set_write_limit(kWriteChunkSize);
TestAppendInCallback();
}
// Test that the writer can be destroyed from callback.
TEST_F(BufferedSocketWriterTest, DestroyFromCallback) {
socket_data_provider_.set_async_write(true);
writer_->Write(test_buffer_, base::Bind(
&BufferedSocketWriterTest::DestroyWriter,
base::Unretained(this)));
writer_->Write(test_buffer_2_, base::Bind(
&BufferedSocketWriterTest::Unexpected,
base::Unretained(this)));
socket_data_provider_.set_async_write(false);
base::RunLoop().RunUntilIdle();
ASSERT_GE(socket_data_provider_.written_data().size(),
static_cast<size_t>(test_buffer_->size()));
EXPECT_EQ(0, memcmp(test_buffer_->data(),
socket_data_provider_.written_data().data(),
test_buffer_->size()));
}
// Verify that it stops writing after the first error.
TEST_F(BufferedSocketWriterTest, TestWriteErrorSync) {
socket_data_provider_.set_write_limit(kWriteChunkSize);
writer_->Write(test_buffer_, base::Closure());
socket_data_provider_.set_async_write(true);
socket_data_provider_.set_next_write_error(net::ERR_FAILED);
writer_->Write(test_buffer_2_,
base::Bind(&BufferedSocketWriterTest::Unexpected,
base::Unretained(this)));
socket_data_provider_.set_async_write(false);
base::RunLoop().RunUntilIdle();
EXPECT_EQ(net::ERR_FAILED, write_error_);
EXPECT_EQ(static_cast<size_t>(test_buffer_->size()),
socket_data_provider_.written_data().size());
}
// Verify that it stops writing after the first error.
TEST_F(BufferedSocketWriterTest, TestWriteErrorAsync) {
socket_data_provider_.set_write_limit(kWriteChunkSize);
writer_->Write(test_buffer_, base::Closure());
socket_data_provider_.set_async_write(true);
socket_data_provider_.set_next_write_error(net::ERR_FAILED);
writer_->Write(test_buffer_2_,
base::Bind(&BufferedSocketWriterTest::Unexpected,
base::Unretained(this)));
base::RunLoop().RunUntilIdle();
EXPECT_EQ(net::ERR_FAILED, write_error_);
EXPECT_EQ(static_cast<size_t>(test_buffer_->size()),
socket_data_provider_.written_data().size());
}
} // namespace remoting
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