78 lines
2.7 KiB
C
78 lines
2.7 KiB
C
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_TEST_TEST_FILE_UTIL_H_
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#define BASE_TEST_TEST_FILE_UTIL_H_
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// File utility functions used only by tests.
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#include <string>
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#include "base/compiler_specific.h"
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#include "base/files/file_path.h"
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namespace base {
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class FilePath;
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// Clear a specific file from the system cache like EvictFileFromSystemCache,
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// but on failure it will sleep and retry. On the Windows buildbots, eviction
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// can fail if the file is marked in use, and this will throw off timings that
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// rely on uncached files.
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bool EvictFileFromSystemCacheWithRetry(const FilePath& file);
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} // namespace base
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// TODO(brettw) move all of this to the base namespace.
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namespace file_util {
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// Wrapper over base::Delete. On Windows repeatedly invokes Delete in case
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// of failure to workaround Windows file locking semantics. Returns true on
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// success.
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bool DieFileDie(const base::FilePath& file, bool recurse);
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// Clear a specific file from the system cache. After this call, trying
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// to access this file will result in a cold load from the hard drive.
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bool EvictFileFromSystemCache(const base::FilePath& file);
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#if defined(OS_WIN)
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// Returns true if the volume supports Alternate Data Streams.
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bool VolumeSupportsADS(const base::FilePath& path);
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// Returns true if the ZoneIdentifier is correctly set to "Internet" (3).
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// Note that this function must be called from the same process as
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// the one that set the zone identifier. I.e. don't use it in UI/automation
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// based tests.
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bool HasInternetZoneIdentifier(const base::FilePath& full_path);
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#endif // defined(OS_WIN)
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// In general it's not reliable to convert a FilePath to a wstring and we use
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// string16 elsewhere for Unicode strings, but in tests it is frequently
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// convenient to be able to compare paths to literals like L"foobar".
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std::wstring FilePathAsWString(const base::FilePath& path);
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base::FilePath WStringAsFilePath(const std::wstring& path);
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// For testing, make the file unreadable or unwritable.
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// In POSIX, this does not apply to the root user.
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bool MakeFileUnreadable(const base::FilePath& path) WARN_UNUSED_RESULT;
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bool MakeFileUnwritable(const base::FilePath& path) WARN_UNUSED_RESULT;
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// Saves the current permissions for a path, and restores it on destruction.
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class PermissionRestorer {
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public:
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explicit PermissionRestorer(const base::FilePath& path);
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~PermissionRestorer();
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private:
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const base::FilePath path_;
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void* info_; // The opaque stored permission information.
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size_t length_; // The length of the stored permission information.
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DISALLOW_COPY_AND_ASSIGN(PermissionRestorer);
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};
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} // namespace file_util
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#endif // BASE_TEST_TEST_FILE_UTIL_H_
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