blob: 6147365ce4ac38dac0d1208da64159b09a4a526a [file] [log] [blame]
// Copyright 2014 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 "storage/browser/fileapi/local_file_stream_writer.h"
#include <stdint.h>
#include <memory>
#include <string>
#include "base/callback.h"
#include "base/files/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "base/logging.h"
#include "base/message_loop/message_loop.h"
#include "base/run_loop.h"
#include "base/single_thread_task_runner.h"
#include "base/threading/thread.h"
#include "net/base/io_buffer.h"
#include "net/base/test_completion_callback.h"
#include "testing/gtest/include/gtest/gtest.h"
using storage::FileStreamWriter;
using storage::LocalFileStreamWriter;
namespace content {
class LocalFileStreamWriterTest : public testing::Test {
public:
LocalFileStreamWriterTest() : file_thread_("TestFileThread") {}
void SetUp() override {
ASSERT_TRUE(file_thread_.Start());
ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
}
void TearDown() override {
// Give another chance for deleted streams to perform Close.
base::RunLoop().RunUntilIdle();
file_thread_.Stop();
base::RunLoop().RunUntilIdle();
}
protected:
base::FilePath Path(const std::string& name) {
return temp_dir_.GetPath().AppendASCII(name);
}
int WriteStringToWriter(LocalFileStreamWriter* writer,
const std::string& data) {
scoped_refptr<net::StringIOBuffer> buffer =
base::MakeRefCounted<net::StringIOBuffer>(data);
scoped_refptr<net::DrainableIOBuffer> drainable =
base::MakeRefCounted<net::DrainableIOBuffer>(std::move(buffer),
data.size());
while (drainable->BytesRemaining() > 0) {
net::TestCompletionCallback callback;
int result = writer->Write(
drainable.get(), drainable->BytesRemaining(), callback.callback());
if (result == net::ERR_IO_PENDING)
result = callback.WaitForResult();
if (result <= 0)
return result;
drainable->DidConsume(result);
}
return net::OK;
}
std::string GetFileContent(const base::FilePath& path) {
std::string content;
base::ReadFileToString(path, &content);
return content;
}
base::FilePath CreateFileWithContent(const std::string& name,
const std::string& data) {
base::FilePath path = Path(name);
base::WriteFile(path, data.c_str(), data.size());
return path;
}
base::SingleThreadTaskRunner* file_task_runner() const {
return file_thread_.task_runner().get();
}
LocalFileStreamWriter* CreateWriter(const base::FilePath& path,
int64_t offset) {
return new LocalFileStreamWriter(file_task_runner(), path, offset,
FileStreamWriter::OPEN_EXISTING_FILE);
}
private:
base::MessageLoopForIO message_loop_;
base::Thread file_thread_;
base::ScopedTempDir temp_dir_;
};
void NeverCalled(int unused) {
ADD_FAILURE();
}
TEST_F(LocalFileStreamWriterTest, Write) {
base::FilePath path = CreateFileWithContent("file_a", std::string());
std::unique_ptr<LocalFileStreamWriter> writer(CreateWriter(path, 0));
EXPECT_EQ(net::OK, WriteStringToWriter(writer.get(), "foo"));
EXPECT_EQ(net::OK, WriteStringToWriter(writer.get(), "bar"));
writer.reset();
base::RunLoop().RunUntilIdle();
EXPECT_TRUE(base::PathExists(path));
EXPECT_EQ("foobar", GetFileContent(path));
}
TEST_F(LocalFileStreamWriterTest, WriteMiddle) {
base::FilePath path = CreateFileWithContent("file_a", "foobar");
std::unique_ptr<LocalFileStreamWriter> writer(CreateWriter(path, 2));
EXPECT_EQ(net::OK, WriteStringToWriter(writer.get(), "xxx"));
writer.reset();
base::RunLoop().RunUntilIdle();
EXPECT_TRUE(base::PathExists(path));
EXPECT_EQ("foxxxr", GetFileContent(path));
}
TEST_F(LocalFileStreamWriterTest, WriteEnd) {
base::FilePath path = CreateFileWithContent("file_a", "foobar");
std::unique_ptr<LocalFileStreamWriter> writer(CreateWriter(path, 6));
EXPECT_EQ(net::OK, WriteStringToWriter(writer.get(), "xxx"));
writer.reset();
base::RunLoop().RunUntilIdle();
EXPECT_TRUE(base::PathExists(path));
EXPECT_EQ("foobarxxx", GetFileContent(path));
}
TEST_F(LocalFileStreamWriterTest, WriteFailForNonexistingFile) {
base::FilePath path = Path("file_a");
ASSERT_FALSE(base::PathExists(path));
std::unique_ptr<LocalFileStreamWriter> writer(CreateWriter(path, 0));
EXPECT_EQ(net::ERR_FILE_NOT_FOUND, WriteStringToWriter(writer.get(), "foo"));
writer.reset();
base::RunLoop().RunUntilIdle();
EXPECT_FALSE(base::PathExists(path));
}
TEST_F(LocalFileStreamWriterTest, CancelBeforeOperation) {
base::FilePath path = Path("file_a");
std::unique_ptr<LocalFileStreamWriter> writer(CreateWriter(path, 0));
// Cancel immediately fails when there's no in-flight operation.
int cancel_result = writer->Cancel(base::BindOnce(&NeverCalled));
EXPECT_EQ(net::ERR_UNEXPECTED, cancel_result);
}
TEST_F(LocalFileStreamWriterTest, CancelAfterFinishedOperation) {
base::FilePath path = CreateFileWithContent("file_a", std::string());
std::unique_ptr<LocalFileStreamWriter> writer(CreateWriter(path, 0));
EXPECT_EQ(net::OK, WriteStringToWriter(writer.get(), "foo"));
// Cancel immediately fails when there's no in-flight operation.
int cancel_result = writer->Cancel(base::BindOnce(&NeverCalled));
EXPECT_EQ(net::ERR_UNEXPECTED, cancel_result);
writer.reset();
base::RunLoop().RunUntilIdle();
// Write operation is already completed.
EXPECT_TRUE(base::PathExists(path));
EXPECT_EQ("foo", GetFileContent(path));
}
TEST_F(LocalFileStreamWriterTest, CancelWrite) {
base::FilePath path = CreateFileWithContent("file_a", "foobar");
std::unique_ptr<LocalFileStreamWriter> writer(CreateWriter(path, 0));
scoped_refptr<net::StringIOBuffer> buffer(
base::MakeRefCounted<net::StringIOBuffer>("xxx"));
int result =
writer->Write(buffer.get(), buffer->size(), base::BindOnce(&NeverCalled));
ASSERT_EQ(net::ERR_IO_PENDING, result);
net::TestCompletionCallback callback;
writer->Cancel(callback.callback());
int cancel_result = callback.WaitForResult();
EXPECT_EQ(net::OK, cancel_result);
}
} // namespace content