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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ash/arc/fileapi/file_stream_forwarder.h"
#include <optional>
#include <string>
#include <utility>
#include "base/files/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "base/functional/bind.h"
#include "base/rand_util.h"
#include "base/run_loop.h"
#include "base/task/single_thread_task_runner.h"
#include "content/public/test/browser_task_environment.h"
#include "storage/browser/file_system/file_system_context.h"
#include "storage/browser/file_system/file_system_url.h"
#include "storage/browser/quota/quota_manager_proxy.h"
#include "storage/browser/test/async_file_test_helper.h"
#include "storage/browser/test/mock_quota_manager.h"
#include "storage/browser/test/mock_quota_manager_proxy.h"
#include "storage/browser/test/mock_special_storage_policy.h"
#include "storage/browser/test/test_file_system_context.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/common/storage_key/storage_key.h"
namespace arc {
namespace {
class FileStreamForwarderTest : public testing::Test {
public:
FileStreamForwarderTest() = default;
void SetUp() override {
// Prepare a temporary directory and the destination file.
ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
dest_file_path_ = temp_dir_.GetPath().AppendASCII("dest");
base::File dest_file(dest_file_path_,
base::File::FLAG_CREATE | base::File::FLAG_WRITE);
ASSERT_TRUE(dest_file.IsValid());
dest_fd_ = base::ScopedFD(dest_file.TakePlatformFile());
base::FilePath temp_path = temp_dir_.GetPath();
quota_manager_ = base::MakeRefCounted<storage::MockQuotaManager>(
/*is_incognito=*/false, temp_path,
base::SingleThreadTaskRunner::GetCurrentDefault(),
base::MakeRefCounted<storage::MockSpecialStoragePolicy>());
quota_manager_proxy_ = base::MakeRefCounted<storage::MockQuotaManagerProxy>(
quota_manager_.get(),
base::SingleThreadTaskRunner::GetCurrentDefault());
context_ = storage::CreateFileSystemContextForTesting(
quota_manager_proxy_.get(), temp_path);
// Prepare a file system.
constexpr char kURLOrigin[] = "http://origin/";
context_->OpenFileSystem(
blink::StorageKey::CreateFromStringForTesting(kURLOrigin),
/*bucket=*/std::nullopt, storage::kFileSystemTypeTemporary,
storage::OPEN_FILE_SYSTEM_CREATE_IF_NONEXISTENT,
base::BindOnce([](const storage::FileSystemURL& root_url,
const std::string& name, base::File::Error result) {
EXPECT_EQ(base::File::FILE_OK, result);
}));
base::RunLoop().RunUntilIdle();
// Prepare a 64KB file in the file system.
url_ = context_->CreateCrackedFileSystemURL(
blink::StorageKey::CreateFromStringForTesting(kURLOrigin),
storage::kFileSystemTypeTemporary,
base::FilePath().AppendASCII("test.dat"));
constexpr int kTestDataSize = 1024 * 64;
test_data_ = base::RandBytesAsString(kTestDataSize);
ASSERT_EQ(base::File::FILE_OK,
storage::AsyncFileTestHelper::CreateFileWithData(
context_.get(), url_, test_data_));
}
protected:
content::BrowserTaskEnvironment task_environment_;
base::ScopedTempDir temp_dir_;
base::FilePath dest_file_path_;
base::ScopedFD dest_fd_;
scoped_refptr<storage::MockQuotaManager> quota_manager_;
scoped_refptr<storage::MockQuotaManagerProxy> quota_manager_proxy_;
scoped_refptr<storage::FileSystemContext> context_;
storage::FileSystemURL url_;
std::string test_data_;
};
TEST_F(FileStreamForwarderTest, ForwardAll) {
constexpr int kOffset = 0;
const int kSize = test_data_.size();
base::RunLoop run_loop;
FileStreamForwarderPtr forwarder(new FileStreamForwarder(
context_, url_, kOffset, kSize, std::move(dest_fd_),
base::BindOnce(
[](base::RunLoop* run_loop, bool result) {
EXPECT_TRUE(result);
run_loop->Quit();
},
&run_loop)));
run_loop.Run();
std::string contents;
ASSERT_TRUE(base::ReadFileToString(dest_file_path_, &contents));
EXPECT_EQ(test_data_, contents);
}
TEST_F(FileStreamForwarderTest, ForwardPartially) {
constexpr int kOffset = 12345;
constexpr int kSize = 6789;
base::RunLoop run_loop;
FileStreamForwarderPtr forwarder(new FileStreamForwarder(
context_, url_, kOffset, kSize, std::move(dest_fd_),
base::BindOnce(
[](base::RunLoop* run_loop, bool result) {
EXPECT_TRUE(result);
run_loop->Quit();
},
&run_loop)));
run_loop.Run();
std::string contents;
ASSERT_TRUE(base::ReadFileToString(dest_file_path_, &contents));
EXPECT_EQ(test_data_.substr(kOffset, kSize), contents);
}
TEST_F(FileStreamForwarderTest, ForwardPartially2) {
constexpr int kOffset = 1;
const int kSize = test_data_.size() - 1;
base::RunLoop run_loop;
FileStreamForwarderPtr forwarder(new FileStreamForwarder(
context_, url_, kOffset, kSize, std::move(dest_fd_),
base::BindOnce(
[](base::RunLoop* run_loop, bool result) {
EXPECT_TRUE(result);
run_loop->Quit();
},
&run_loop)));
run_loop.Run();
std::string contents;
ASSERT_TRUE(base::ReadFileToString(dest_file_path_, &contents));
EXPECT_EQ(test_data_.substr(kOffset, kSize), contents);
}
TEST_F(FileStreamForwarderTest, ForwardTooMuch) {
constexpr int kOffset = 0;
const int kSize = test_data_.size() + 1; // Request more than provided.
base::RunLoop run_loop;
FileStreamForwarderPtr forwarder(new FileStreamForwarder(
context_, url_, kOffset, kSize, std::move(dest_fd_),
base::BindOnce(
[](base::RunLoop* run_loop, bool result) {
EXPECT_FALSE(result);
run_loop->Quit();
},
&run_loop)));
run_loop.Run();
std::string contents;
ASSERT_TRUE(base::ReadFileToString(dest_file_path_, &contents));
EXPECT_EQ(test_data_, contents);
}
TEST_F(FileStreamForwarderTest, ForwardTooMuch2) {
constexpr int kOffset = 1;
const int kSize = test_data_.size(); // Request more than provided.
base::RunLoop run_loop;
FileStreamForwarderPtr forwarder(new FileStreamForwarder(
context_, url_, kOffset, kSize, std::move(dest_fd_),
base::BindOnce(
[](base::RunLoop* run_loop, bool result) {
EXPECT_FALSE(result);
run_loop->Quit();
},
&run_loop)));
run_loop.Run();
std::string contents;
ASSERT_TRUE(base::ReadFileToString(dest_file_path_, &contents));
EXPECT_EQ(test_data_.substr(kOffset), contents);
}
TEST_F(FileStreamForwarderTest, InvalidURL) {
storage::FileSystemURL invalid_url = context_->CreateCrackedFileSystemURL(
blink::StorageKey::CreateFromStringForTesting("http://invalid-origin/"),
storage::kFileSystemTypeTemporary,
base::FilePath().AppendASCII("invalid.dat"));
constexpr int kOffset = 0;
const int kSize = test_data_.size();
base::RunLoop run_loop;
FileStreamForwarderPtr forwarder(new FileStreamForwarder(
context_, invalid_url, kOffset, kSize, std::move(dest_fd_),
base::BindOnce(
[](base::RunLoop* run_loop, bool result) {
EXPECT_FALSE(result);
run_loop->Quit();
},
&run_loop)));
run_loop.Run();
std::string contents;
ASSERT_TRUE(base::ReadFileToString(dest_file_path_, &contents));
EXPECT_TRUE(contents.empty());
}
} // namespace
} // namespace arc
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