Remove //net (except for Android test stuff) and sdch

net/disk_cache/simple/simple_version_upgrade_unittest.cc

-// 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 "net/disk_cache/simple/simple_version_upgrade.h"
-
-#include "base/basictypes.h"
-#include "base/files/file_path.h"
-#include "base/files/file_util.h"
-#include "base/files/scoped_temp_dir.h"
-#include "base/format_macros.h"
-#include "base/strings/stringprintf.h"
-#include "net/base/net_errors.h"
-#include "net/disk_cache/simple/simple_backend_version.h"
-#include "net/disk_cache/simple/simple_entry_format_history.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-// The migration process relies on ability to rename newly created files, which
-// could be problematic on Windows XP.
-#if defined(OS_POSIX)
-
-namespace {
-
-// Same as |disk_cache::kSimpleInitialMagicNumber|.
-const uint64 kSimpleInitialMagicNumber = GG_UINT64_C(0xfcfb6d1ba7725c30);
-
-// The "fake index" file that cache backends use to distinguish whether the
-// cache belongs to one backend or another.
-const char kFakeIndexFileName[] = "index";
-
-// Same as |SimpleIndexFile::kIndexFileName|.
-const char kIndexFileName[] = "the-real-index";
-
-bool WriteFakeIndexFileV5(const base::FilePath& cache_path) {
-  disk_cache::FakeIndexData data;
-  data.version = 5;
-  data.initial_magic_number = kSimpleInitialMagicNumber;
-  data.unused_must_be_zero1 = 0;
-  data.unused_must_be_zero2 = 0;
-  const base::FilePath file_name = cache_path.AppendASCII("index");
-  return sizeof(data) ==
-         base::WriteFile(
-             file_name, reinterpret_cast<const char*>(&data), sizeof(data));
-}
-
-TEST(SimpleVersionUpgradeTest, FailsToMigrateBackwards) {
-  base::ScopedTempDir cache_dir;
-  ASSERT_TRUE(cache_dir.CreateUniqueTempDir());
-  const base::FilePath cache_path = cache_dir.path();
-
-  disk_cache::FakeIndexData data;
-  data.version = 100500;
-  data.initial_magic_number = kSimpleInitialMagicNumber;
-  data.unused_must_be_zero1 = 0;
-  data.unused_must_be_zero2 = 0;
-  const base::FilePath file_name = cache_path.AppendASCII(kFakeIndexFileName);
-  ASSERT_EQ(implicit_cast<int>(sizeof(data)),
-            base::WriteFile(
-                file_name, reinterpret_cast<const char*>(&data), sizeof(data)));
-  EXPECT_FALSE(disk_cache::UpgradeSimpleCacheOnDisk(cache_dir.path()));
-}
-
-TEST(SimpleVersionUpgradeTest, FakeIndexVersionGetsUpdated) {
-  base::ScopedTempDir cache_dir;
-  ASSERT_TRUE(cache_dir.CreateUniqueTempDir());
-  const base::FilePath cache_path = cache_dir.path();
-
-  WriteFakeIndexFileV5(cache_path);
-  const std::string file_contents("incorrectly serialized data");
-  const base::FilePath index_file = cache_path.AppendASCII(kIndexFileName);
-  ASSERT_EQ(implicit_cast<int>(file_contents.size()),
-            base::WriteFile(
-                index_file, file_contents.data(), file_contents.size()));
-
-  // Upgrade.
-  ASSERT_TRUE(disk_cache::UpgradeSimpleCacheOnDisk(cache_path));
-
-  // Check that the version in the fake index file is updated.
-  std::string new_fake_index_contents;
-  ASSERT_TRUE(base::ReadFileToString(cache_path.AppendASCII(kFakeIndexFileName),
-                                     &new_fake_index_contents));
-  const disk_cache::FakeIndexData* fake_index_header;
-  EXPECT_EQ(sizeof(*fake_index_header), new_fake_index_contents.size());
-  fake_index_header = reinterpret_cast<const disk_cache::FakeIndexData*>(
-      new_fake_index_contents.data());
-  EXPECT_EQ(disk_cache::kSimpleVersion, fake_index_header->version);
-  EXPECT_EQ(kSimpleInitialMagicNumber, fake_index_header->initial_magic_number);
-}
-
-TEST(SimpleVersionUpgradeTest, UpgradeV5V6IndexMustDisappear) {
-  base::ScopedTempDir cache_dir;
-  ASSERT_TRUE(cache_dir.CreateUniqueTempDir());
-  const base::FilePath cache_path = cache_dir.path();
-
-  WriteFakeIndexFileV5(cache_path);
-  const std::string file_contents("incorrectly serialized data");
-  const base::FilePath index_file = cache_path.AppendASCII(kIndexFileName);
-  ASSERT_EQ(implicit_cast<int>(file_contents.size()),
-            base::WriteFile(
-                index_file, file_contents.data(), file_contents.size()));
-
-  // Create a few entry-like files.
-  const uint64 kEntries = 5;
-  for (uint64 entry_hash = 0; entry_hash < kEntries; ++entry_hash) {
-    for (int index = 0; index < 3; ++index) {
-      std::string file_name =
-          base::StringPrintf("%016" PRIx64 "_%1d", entry_hash, index);
-      std::string entry_contents =
-          file_contents +
-          base::StringPrintf(" %" PRIx64, implicit_cast<uint64>(entry_hash));
-      ASSERT_EQ(implicit_cast<int>(entry_contents.size()),
-                base::WriteFile(cache_path.AppendASCII(file_name),
-                                     entry_contents.data(),
-                                     entry_contents.size()));
-    }
-  }
-
-  // Upgrade.
-  ASSERT_TRUE(disk_cache::UpgradeIndexV5V6(cache_path));
-
-  // Check that the old index disappeared but the files remain unchanged.
-  EXPECT_FALSE(base::PathExists(index_file));
-  for (uint64 entry_hash = 0; entry_hash < kEntries; ++entry_hash) {
-    for (int index = 0; index < 3; ++index) {
-      std::string file_name =
-          base::StringPrintf("%016" PRIx64 "_%1d", entry_hash, index);
-      std::string expected_contents =
-          file_contents +
-          base::StringPrintf(" %" PRIx64, implicit_cast<uint64>(entry_hash));
-      std::string real_contents;
-      EXPECT_TRUE(base::ReadFileToString(cache_path.AppendASCII(file_name),
-                                         &real_contents));
-      EXPECT_EQ(expected_contents, real_contents);
-    }
-  }
-}
-
-}  // namespace
-
-#endif  // defined(OS_POSIX)