Index: webkit/fileapi/file_system_database_test_helper.cc |
diff --git a/webkit/fileapi/file_system_database_test_helper.cc b/webkit/fileapi/file_system_database_test_helper.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..28951d08bd35072229dfdcfb600c4997f6cfd0a9 |
--- /dev/null |
+++ b/webkit/fileapi/file_system_database_test_helper.cc |
@@ -0,0 +1,84 @@ |
+// Copyright (c) 2012 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 "webkit/fileapi/file_system_database_test_helper.h" |
+ |
+#include <algorithm> |
+#include <functional> |
+#include <vector> |
+ |
+#include "base/file_util.h" |
+#include "base/stl_util.h" |
+#include "testing/gtest/include/gtest/gtest.h" |
+#include "webkit/fileapi/file_system_util.h" |
+ |
+namespace fileapi { |
+ |
+void CorruptDatabase(const FilePath& db_path, |
+ leveldb::FileType type, |
+ ptrdiff_t offset, |
+ size_t size) { |
+ file_util::FileEnumerator file_enum( |
+ db_path, false /* recursive */, |
+ static_cast<file_util::FileEnumerator::FileType>( |
+ file_util::FileEnumerator::DIRECTORIES | |
+ file_util::FileEnumerator::FILES)); |
+ FilePath file_path; |
+ FilePath picked_file_path; |
+ uint64 picked_file_number = kuint64max; |
+ |
+ while (!(file_path = file_enum.Next()).empty()) { |
+ uint64 number = kuint64max; |
+ leveldb::FileType file_type; |
+ EXPECT_TRUE(leveldb::ParseFileName(FilePathToString(file_path.BaseName()), |
+ &number, &file_type)); |
+ if (file_type == type && |
+ (picked_file_number == kuint64max || picked_file_number < number)) { |
+ picked_file_path = file_path; |
+ picked_file_number = number; |
+ } |
+ } |
+ |
+ EXPECT_FALSE(picked_file_path.empty()); |
+ EXPECT_NE(kuint64max, picked_file_number); |
+ |
+ bool created = true; |
+ base::PlatformFileError error = base::PLATFORM_FILE_ERROR_FAILED; |
+ base::PlatformFile file = |
+ CreatePlatformFile(picked_file_path, |
+ base::PLATFORM_FILE_OPEN | |
+ base::PLATFORM_FILE_READ | |
+ base::PLATFORM_FILE_WRITE, |
+ &created, &error); |
+ EXPECT_EQ(base::PLATFORM_FILE_OK, error); |
+ EXPECT_FALSE(created); |
+ |
+ base::PlatformFileInfo file_info; |
+ EXPECT_TRUE(base::GetPlatformFileInfo(file, &file_info)); |
+ if (offset < 0) |
+ offset += file_info.size; |
+ EXPECT_GE(offset, 0); |
+ EXPECT_LE(offset, file_info.size); |
+ |
+ size = std::min(size, static_cast<size_t>(file_info.size - offset)); |
+ |
+ std::vector<char> buf(size); |
+ int read_size = base::ReadPlatformFile(file, offset, |
+ vector_as_array(&buf), buf.size()); |
+ EXPECT_LT(0, read_size); |
+ EXPECT_GE(buf.size(), static_cast<size_t>(read_size)); |
+ buf.resize(read_size); |
+ |
+ std::transform(buf.begin(), buf.end(), buf.begin(), |
+ std::logical_not<char>()); |
+ |
+ int written_size = base::WritePlatformFile(file, offset, |
+ vector_as_array(&buf), buf.size()); |
+ EXPECT_GT(written_size, 0); |
+ EXPECT_EQ(buf.size(), static_cast<size_t>(written_size)); |
+ |
+ base::ClosePlatformFile(file); |
+} |
+ |
+} // namespace fileapi |