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// 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 "chrome/browser/chromeos/drive/file_system/truncate_operation.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/task_runner_util.h"
#include "chrome/browser/chromeos/drive/drive.pb.h"
#include "chrome/browser/chromeos/drive/fake_free_disk_space_getter.h"
#include "chrome/browser/chromeos/drive/file_system/operation_test_base.h"
#include "content/public/test/test_utils.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace drive {
namespace file_system {
class TruncateOperationTest : public OperationTestBase {
protected:
virtual void SetUp() override {
OperationTestBase::SetUp();
operation_.reset(new TruncateOperation(
blocking_task_runner(), delegate(), scheduler(),
metadata(), cache(), temp_dir()));
}
scoped_ptr<TruncateOperation> operation_;
};
TEST_F(TruncateOperationTest, Truncate) {
base::FilePath file_in_root(FILE_PATH_LITERAL("drive/root/File 1.txt"));
ResourceEntry src_entry;
ASSERT_EQ(FILE_ERROR_OK, GetLocalResourceEntry(file_in_root, &src_entry));
const int64 file_size = src_entry.file_info().size();
// Make sure the file has at least 2 bytes.
ASSERT_GE(file_size, 2);
FileError error = FILE_ERROR_FAILED;
operation_->Truncate(
file_in_root,
1, // Truncate to 1 byte.
google_apis::test_util::CreateCopyResultCallback(&error));
content::RunAllBlockingPoolTasksUntilIdle();
EXPECT_EQ(FILE_ERROR_OK, error);
base::FilePath local_path;
error = FILE_ERROR_FAILED;
base::PostTaskAndReplyWithResult(
blocking_task_runner(),
FROM_HERE,
base::Bind(&internal::FileCache::GetFile,
base::Unretained(cache()),
GetLocalId(file_in_root), &local_path),
google_apis::test_util::CreateCopyResultCallback(&error));
content::RunAllBlockingPoolTasksUntilIdle();
ASSERT_EQ(FILE_ERROR_OK, error);
// The local file should be truncated.
int64 local_file_size = 0;
base::GetFileSize(local_path, &local_file_size);
EXPECT_EQ(1, local_file_size);
}
TEST_F(TruncateOperationTest, NegativeSize) {
base::FilePath file_in_root(FILE_PATH_LITERAL("drive/root/File 1.txt"));
ResourceEntry src_entry;
ASSERT_EQ(FILE_ERROR_OK, GetLocalResourceEntry(file_in_root, &src_entry));
const int64 file_size = src_entry.file_info().size();
// Make sure the file has at least 2 bytes.
ASSERT_GE(file_size, 2);
FileError error = FILE_ERROR_FAILED;
operation_->Truncate(
file_in_root,
-1, // Truncate to "-1" byte.
google_apis::test_util::CreateCopyResultCallback(&error));
content::RunAllBlockingPoolTasksUntilIdle();
EXPECT_EQ(FILE_ERROR_INVALID_OPERATION, error);
}
TEST_F(TruncateOperationTest, HostedDocument) {
base::FilePath file_in_root(FILE_PATH_LITERAL(
"drive/root/Document 1 excludeDir-test.gdoc"));
FileError error = FILE_ERROR_FAILED;
operation_->Truncate(
file_in_root,
1, // Truncate to 1 byte.
google_apis::test_util::CreateCopyResultCallback(&error));
content::RunAllBlockingPoolTasksUntilIdle();
EXPECT_EQ(FILE_ERROR_INVALID_OPERATION, error);
}
TEST_F(TruncateOperationTest, Extend) {
base::FilePath file_in_root(FILE_PATH_LITERAL("drive/root/File 1.txt"));
ResourceEntry src_entry;
ASSERT_EQ(FILE_ERROR_OK, GetLocalResourceEntry(file_in_root, &src_entry));
const int64 file_size = src_entry.file_info().size();
FileError error = FILE_ERROR_FAILED;
operation_->Truncate(
file_in_root,
file_size + 10, // Extend to 10 bytes.
google_apis::test_util::CreateCopyResultCallback(&error));
content::RunAllBlockingPoolTasksUntilIdle();
EXPECT_EQ(FILE_ERROR_OK, error);
base::FilePath local_path;
error = FILE_ERROR_FAILED;
base::PostTaskAndReplyWithResult(
blocking_task_runner(),
FROM_HERE,
base::Bind(&internal::FileCache::GetFile,
base::Unretained(cache()),
GetLocalId(file_in_root), &local_path),
google_apis::test_util::CreateCopyResultCallback(&error));
content::RunAllBlockingPoolTasksUntilIdle();
ASSERT_EQ(FILE_ERROR_OK, error);
// The local file should be truncated.
std::string content;
ASSERT_TRUE(base::ReadFileToString(local_path, &content));
EXPECT_EQ(file_size + 10, static_cast<int64>(content.size()));
// All trailing 10 bytes should be '\0'.
EXPECT_EQ(std::string(10, '\0'), content.substr(file_size));
}
} // namespace file_system
} // namespace drive
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