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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40285824): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif
#include <stddef.h>
#include <stdint.h>
#include <array>
#include <map>
#include <string>
#include "base/test/task_environment.h"
#include "components/services/filesystem/directory_test_helper.h"
#include "components/services/filesystem/public/mojom/directory.mojom.h"
#include "components/services/filesystem/public/mojom/types.mojom.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace filesystem {
namespace {
class DirectoryImplTest : public testing::Test {
public:
DirectoryImplTest() = default;
DirectoryImplTest(const DirectoryImplTest&) = delete;
DirectoryImplTest& operator=(const DirectoryImplTest&) = delete;
mojo::Remote<mojom::Directory> CreateTempDir() {
return test_helper_.CreateTempDir();
}
private:
base::test::TaskEnvironment task_environment_;
DirectoryTestHelper test_helper_;
};
constexpr char kData[] = "one two three";
TEST_F(DirectoryImplTest, Read) {
mojo::Remote<mojom::Directory> directory = CreateTempDir();
base::File::Error error;
// Make some files.
struct FilesToCreate {
const char* name;
uint32_t open_flags;
};
const auto files_to_create = std::to_array<FilesToCreate>({
{"my_file1", mojom::kFlagRead | mojom::kFlagWrite | mojom::kFlagCreate},
{"my_file2", mojom::kFlagWrite | mojom::kFlagCreate},
{"my_file3", mojom::kFlagAppend | mojom::kFlagCreate},
});
for (size_t i = 0; i < std::size(files_to_create); i++) {
error = base::File::Error::FILE_ERROR_FAILED;
base::File tmp_base_file;
bool handled = directory->OpenFileHandle(files_to_create[i].name,
files_to_create[i].open_flags,
&error, &tmp_base_file);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_OK, error);
tmp_base_file.Close();
}
// Make a directory.
error = base::File::Error::FILE_ERROR_FAILED;
bool handled = directory->OpenDirectory(
"my_dir", mojo::NullReceiver(),
mojom::kFlagRead | mojom::kFlagWrite | mojom::kFlagCreate, &error);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_OK, error);
error = base::File::Error::FILE_ERROR_FAILED;
std::optional<std::vector<mojom::DirectoryEntryPtr>> directory_contents;
handled = directory->Read(&error, &directory_contents);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_OK, error);
ASSERT_TRUE(directory_contents.has_value());
// Expected contents of the directory.
std::map<std::string, mojom::FsFileType> expected_contents;
expected_contents["my_file1"] = mojom::FsFileType::REGULAR_FILE;
expected_contents["my_file2"] = mojom::FsFileType::REGULAR_FILE;
expected_contents["my_file3"] = mojom::FsFileType::REGULAR_FILE;
expected_contents["my_dir"] = mojom::FsFileType::DIRECTORY;
// Note: We don't expose ".." or ".".
EXPECT_EQ(expected_contents.size(), directory_contents->size());
for (size_t i = 0; i < directory_contents->size(); i++) {
auto& item = directory_contents.value()[i];
ASSERT_TRUE(item);
auto it = expected_contents.find(item->name.AsUTF8Unsafe());
ASSERT_TRUE(it != expected_contents.end());
EXPECT_EQ(it->second, item->type);
expected_contents.erase(it);
}
}
// TODO(vtl): Properly test OpenDirectory() (including flags).
TEST_F(DirectoryImplTest, BasicRenameDelete) {
mojo::Remote<mojom::Directory> directory = CreateTempDir();
base::File::Error error;
// Create my_file.
error = base::File::Error::FILE_ERROR_FAILED;
base::File tmp_base_file;
bool handled = directory->OpenFileHandle(
"my_file", mojom::kFlagWrite | mojom::kFlagCreate, &error,
&tmp_base_file);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_OK, error);
// Opening my_file should succeed.
error = base::File::Error::FILE_ERROR_FAILED;
handled = directory->OpenFileHandle(
"my_file", mojom::kFlagRead | mojom::kFlagOpen, &error, &tmp_base_file);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_OK, error);
tmp_base_file.Close();
// Rename my_file to my_new_file.
handled = directory->Rename("my_file", "my_new_file", &error);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_OK, error);
// Opening my_file should fail.
error = base::File::Error::FILE_ERROR_FAILED;
handled = directory->OpenFileHandle(
"my_file", mojom::kFlagRead | mojom::kFlagOpen, &error, &tmp_base_file);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_ERROR_NOT_FOUND, error);
tmp_base_file.Close();
// Opening my_new_file should succeed.
error = base::File::Error::FILE_ERROR_FAILED;
handled = directory->OpenFileHandle("my_new_file",
mojom::kFlagRead | mojom::kFlagOpen,
&error, &tmp_base_file);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_OK, error);
tmp_base_file.Close();
// Delete my_new_file (no flags).
handled = directory->Delete("my_new_file", 0, &error);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_OK, error);
tmp_base_file.Close();
// Opening my_new_file should fail.
error = base::File::Error::FILE_ERROR_FAILED;
handled = directory->OpenFileHandle("my_new_file",
mojom::kFlagRead | mojom::kFlagOpen,
&error, &tmp_base_file);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_ERROR_NOT_FOUND, error);
tmp_base_file.Close();
}
TEST_F(DirectoryImplTest, CantOpenDirectoriesAsFiles) {
mojo::Remote<mojom::Directory> directory = CreateTempDir();
base::File::Error error;
{
// Create a directory called 'my_file'
mojo::Remote<mojom::Directory> my_file_directory;
error = base::File::Error::FILE_ERROR_FAILED;
bool handled = directory->OpenDirectory(
"my_file", my_file_directory.BindNewPipeAndPassReceiver(),
mojom::kFlagRead | mojom::kFlagWrite | mojom::kFlagCreate, &error);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_OK, error);
}
{
// Attempt to open that directory as a file. This must fail!
base::File tmp_file_handle;
error = base::File::Error::FILE_ERROR_FAILED;
bool handled = directory->OpenFileHandle(
"my_file", mojom::kFlagRead | mojom::kFlagOpen, &error,
&tmp_file_handle);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_ERROR_NOT_A_FILE, error);
}
}
TEST_F(DirectoryImplTest, Clone) {
mojo::Remote<mojom::Directory> clone_one;
mojo::Remote<mojom::Directory> clone_two;
base::File::Error error;
{
mojo::Remote<mojom::Directory> directory = CreateTempDir();
directory->Clone(clone_one.BindNewPipeAndPassReceiver());
directory->Clone(clone_two.BindNewPipeAndPassReceiver());
// Original temporary directory goes out of scope here; shouldn't be
// deleted since it has clones.
}
std::vector<uint8_t> data(kData, kData + strlen(kData));
{
bool handled = clone_one->WriteFile("data", data, &error);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_OK, error);
}
{
std::vector<uint8_t> file_contents;
bool handled = clone_two->ReadEntireFile("data", &error, &file_contents);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_OK, error);
EXPECT_EQ(data, file_contents);
}
}
TEST_F(DirectoryImplTest, WriteFileReadFile) {
mojo::Remote<mojom::Directory> directory = CreateTempDir();
base::File::Error error;
std::vector<uint8_t> data(kData, kData + strlen(kData));
{
bool handled = directory->WriteFile("data", data, &error);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_OK, error);
}
{
std::vector<uint8_t> file_contents;
bool handled = directory->ReadEntireFile("data", &error, &file_contents);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_OK, error);
EXPECT_EQ(data, file_contents);
}
}
TEST_F(DirectoryImplTest, ReadEmptyFileIsNotFoundError) {
mojo::Remote<mojom::Directory> directory = CreateTempDir();
base::File::Error error;
{
std::vector<uint8_t> file_contents;
bool handled =
directory->ReadEntireFile("doesnt_exist", &error, &file_contents);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_ERROR_NOT_FOUND, error);
}
}
TEST_F(DirectoryImplTest, CantReadEntireFileOnADirectory) {
mojo::Remote<mojom::Directory> directory = CreateTempDir();
base::File::Error error;
// Create a directory
{
mojo::Remote<mojom::Directory> my_file_directory;
error = base::File::Error::FILE_ERROR_FAILED;
bool handled = directory->OpenDirectory(
"my_dir", my_file_directory.BindNewPipeAndPassReceiver(),
mojom::kFlagRead | mojom::kFlagWrite | mojom::kFlagCreate, &error);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_OK, error);
}
// Try to read it as a file
{
std::vector<uint8_t> file_contents;
bool handled = directory->ReadEntireFile("my_dir", &error, &file_contents);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_ERROR_NOT_A_FILE, error);
}
}
TEST_F(DirectoryImplTest, CantWriteFileOnADirectory) {
mojo::Remote<mojom::Directory> directory = CreateTempDir();
base::File::Error error;
// Create a directory
{
mojo::Remote<mojom::Directory> my_file_directory;
error = base::File::Error::FILE_ERROR_FAILED;
bool handled = directory->OpenDirectory(
"my_dir", my_file_directory.BindNewPipeAndPassReceiver(),
mojom::kFlagRead | mojom::kFlagWrite | mojom::kFlagCreate, &error);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_OK, error);
}
{
std::vector<uint8_t> data(kData, kData + strlen(kData));
bool handled = directory->WriteFile("my_dir", data, &error);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_ERROR_NOT_A_FILE, error);
}
}
TEST_F(DirectoryImplTest, Flush) {
mojo::Remote<mojom::Directory> directory = CreateTempDir();
base::File::Error error;
{
bool handled = directory->Flush(&error);
ASSERT_TRUE(handled);
EXPECT_EQ(base::File::Error::FILE_OK, error);
}
}
} // namespace
} // namespace filesystem
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