test: Move util/test to its own top-level directory, test

util/test/scoped_temp_dir_win.cc

-// Copyright 2015 The Crashpad Authors. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "util/test/scoped_temp_dir.h"
-
-#include <windows.h>
-
-#include "base/logging.h"
-#include "base/rand_util.h"
-#include "base/strings/string16.h"
-#include "base/strings/stringprintf.h"
-#include "base/strings/utf_string_conversions.h"
-#include "gtest/gtest.h"
-
-namespace crashpad {
-namespace test {
-
-namespace {
-
-base::FilePath GenerateCandidateName() {
-  wchar_t temp_path[MAX_PATH + 1];
-  DWORD path_len = GetTempPath(MAX_PATH, temp_path);
-  PCHECK(path_len != 0) << "GetTempPath";
-  base::FilePath system_temp_dir(temp_path);
-  base::string16 new_dir_name = base::UTF8ToUTF16(base::StringPrintf(
-        "crashpad.test.%d.%I64x", GetCurrentProcessId(), base::RandUint64()));
-  return system_temp_dir.Append(new_dir_name);
-}
-
-const int kRetries = 50;
-
-}  // namespace
-
-void ScopedTempDir::Rename() {
-  for (int count = 0; count < kRetries; ++count) {
-    // Try to move to a new temporary directory with a randomly generated name.
-    // If the one we try exists, retry with a new name until we reach some
-    // limit.
-    base::FilePath target_path = GenerateCandidateName();
-    if (MoveFileEx(path_.value().c_str(), target_path.value().c_str(), 0)) {
-      path_ = target_path;
-      return;
-    }
-  }
-
-  CHECK(false) << "Couldn't move to a new unique temp dir";
-}
-
-// static
-base::FilePath ScopedTempDir::CreateTemporaryDirectory() {
-  for (int count = 0; count < kRetries; ++count) {
-    // Try to create a new temporary directory with random generated name. If
-    // the one we generate exists, keep trying another path name until we reach
-    // some limit.
-    base::FilePath path_to_create = GenerateCandidateName();
-    if (CreateDirectory(path_to_create.value().c_str(), NULL))
-      return path_to_create;
-  }
-
-  CHECK(false) << "Couldn't create a new unique temp dir";
-  return base::FilePath();
-}
-
-// static
-void ScopedTempDir::RecursivelyDeleteTemporaryDirectory(
-    const base::FilePath& path) {
-  const base::string16 all_files_mask(L"\\*");
-
-  base::string16 search_mask = path.value() + all_files_mask;
-  WIN32_FIND_DATA find_data;
-  HANDLE search_handle = FindFirstFile(search_mask.c_str(), &find_data);
-  if (search_handle == INVALID_HANDLE_VALUE)
-    ASSERT_EQ(ERROR_FILE_NOT_FOUND, GetLastError());
-  do {
-    if (wcscmp(find_data.cFileName, L".") == 0 ||
-        wcscmp(find_data.cFileName, L"..") == 0) {
-      continue;
-    }
-    base::FilePath entry_path = path.Append(find_data.cFileName);
-    ASSERT_FALSE(find_data.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT);
-    if (find_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
-      RecursivelyDeleteTemporaryDirectory(entry_path);
-    else
-      EXPECT_TRUE(DeleteFile(entry_path.value().c_str()));
-  } while (FindNextFile(search_handle, &find_data));
-  EXPECT_EQ(ERROR_NO_MORE_FILES, GetLastError());
-
-  EXPECT_TRUE(FindClose(search_handle));
-  EXPECT_TRUE(RemoveDirectory(path.value().c_str()));
-}
-
-}  // namespace test
-}  // namespace crashpad