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// 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 "chrome/browser/chromeos/drive/file_cache_metadata.h"
#include "base/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "chrome/browser/chromeos/drive/drive.pb.h"
#include "chrome/browser/chromeos/drive/file_cache.h"
#include "chrome/browser/chromeos/drive/file_system_util.h"
#include "chrome/browser/chromeos/drive/test_util.h"
#include "chrome/browser/google_apis/test_util.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace drive {
namespace internal {
class FileCacheMetadataTest : public testing::Test {
public:
FileCacheMetadataTest() {}
virtual void SetUp() OVERRIDE {
// Create cache directories.
ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
cache_paths_ = FileCache::GetCachePaths(temp_dir_.path());
ASSERT_TRUE(FileCache::CreateCacheDirectories(cache_paths_));
persistent_directory_ = cache_paths_[FileCache::CACHE_TYPE_PERSISTENT];
tmp_directory_ = cache_paths_[FileCache::CACHE_TYPE_TMP];
}
virtual void TearDown() OVERRIDE {
metadata_.reset();
}
// Sets up the FileCacheMetadata object.
void SetUpCacheMetadata() {
metadata_.reset(new FileCacheMetadata(NULL));
ASSERT_TRUE(metadata_->Initialize(cache_paths_));
}
// Sets up the cache directories with various files.
// Should be called before SetUpCacheMetadata().
void SetUpCacheWithVariousFiles() {
// Create some files in persistent directory.
//
CreateFile(persistent_directory_.AppendASCII("id_foo.md5foo"));
CreateFile(persistent_directory_.AppendASCII("id_bar.local"));
// Create some files in tmp directory.
//
CreateFile(tmp_directory_.AppendASCII("id_qux.md5qux"));
// "id_quux" is invalid as we shouldn't have a dirty file in "tmp".
CreateFile(tmp_directory_.AppendASCII("id_quux.local"));
}
// Create a file at |file_path|.
void CreateFile(const base::FilePath& file_path) {
const std::string kFoo = "foo";
ASSERT_TRUE(google_apis::test_util::WriteStringToFile(file_path, kFoo))
<< ": " << file_path.value();
}
protected:
base::ScopedTempDir temp_dir_;
scoped_ptr<FileCacheMetadata> metadata_;
std::vector<base::FilePath> cache_paths_;
base::FilePath persistent_directory_;
base::FilePath tmp_directory_;
};
// Test all the methods of FileCacheMetadata except for
// RemoveTemporaryFiles.
TEST_F(FileCacheMetadataTest, CacheTest) {
SetUpCacheMetadata();
// Save an initial entry.
std::string test_resource_id("test_resource_id");
std::string test_md5("test_md5");
{
FileCacheEntry new_cache_entry;
new_cache_entry.set_md5(test_md5);
new_cache_entry.set_is_present(true);
new_cache_entry.set_is_persistent(true);
metadata_->AddOrUpdateCacheEntry(test_resource_id, new_cache_entry);
}
// Test that the entry can be retrieved.
FileCacheEntry cache_entry;
ASSERT_TRUE(metadata_->GetCacheEntry(
test_resource_id, test_md5, &cache_entry));
EXPECT_EQ(test_md5, cache_entry.md5());
EXPECT_TRUE(cache_entry.is_present());
EXPECT_TRUE(cache_entry.is_persistent());
// Empty md5 should also work.
ASSERT_TRUE(metadata_->GetCacheEntry(
test_resource_id, std::string(), &cache_entry));
EXPECT_EQ(test_md5, cache_entry.md5());
// resource_id doesn't exist.
EXPECT_FALSE(metadata_->GetCacheEntry(
"not_found_resource_id", std::string(), &cache_entry));
// md5 doesn't match.
EXPECT_FALSE(metadata_->GetCacheEntry(
test_resource_id, "mismatch_md5", &cache_entry));
// Update all attributes.
test_md5 = "test_md5_2";
{
FileCacheEntry updated_cache_entry;
updated_cache_entry.set_md5(test_md5);
updated_cache_entry.set_is_pinned(true);
metadata_->AddOrUpdateCacheEntry(test_resource_id, updated_cache_entry);
}
// Make sure the values took.
ASSERT_TRUE(metadata_->GetCacheEntry(
test_resource_id, test_md5, &cache_entry));
EXPECT_EQ(test_md5, cache_entry.md5());
EXPECT_TRUE(cache_entry.is_pinned());
// Empty m5 should work.
ASSERT_TRUE(metadata_->GetCacheEntry(
test_resource_id, std::string(), &cache_entry));
EXPECT_EQ(test_md5, cache_entry.md5());
// Test dirty cache.
test_md5 = "test_md5_3";
{
FileCacheEntry new_cache_entry;
new_cache_entry.set_md5(test_md5);
new_cache_entry.set_is_dirty(true);
metadata_->AddOrUpdateCacheEntry(test_resource_id, new_cache_entry);
}
// Make sure the values took.
ASSERT_TRUE(metadata_->GetCacheEntry(
test_resource_id, test_md5, &cache_entry));
EXPECT_EQ(test_md5, cache_entry.md5());
EXPECT_TRUE(cache_entry.is_dirty());
// Empty md5 should work.
ASSERT_TRUE(metadata_->GetCacheEntry(
test_resource_id, std::string(), &cache_entry));
EXPECT_EQ(test_md5, cache_entry.md5());
// Mismatched md5 should also work for dirty entries.
ASSERT_TRUE(metadata_->GetCacheEntry(
test_resource_id, "mismatch_md5", &cache_entry));
EXPECT_EQ(test_md5, cache_entry.md5());
// Remove the entry.
metadata_->RemoveCacheEntry(test_resource_id);
EXPECT_FALSE(metadata_->GetCacheEntry(
test_resource_id, std::string(), &cache_entry));
// Add another one.
test_resource_id = "test_resource_id_2";
test_md5 = "test_md5_4";
{
FileCacheEntry new_cache_entry;
new_cache_entry.set_md5(test_md5);
new_cache_entry.set_is_present(true);
metadata_->AddOrUpdateCacheEntry(test_resource_id, new_cache_entry);
}
// Make sure the values took.
ASSERT_TRUE(metadata_->GetCacheEntry(
test_resource_id, test_md5, &cache_entry));
EXPECT_EQ(test_md5, cache_entry.md5());
EXPECT_TRUE(cache_entry.is_present());
}
TEST_F(FileCacheMetadataTest, CorruptDB) {
using file_util::PathExists;
SetUpCacheWithVariousFiles();
const base::FilePath db_path =
cache_paths_[FileCache::CACHE_TYPE_META].Append(
FileCacheMetadata::kCacheMetadataDBPath);
// Write a bogus file.
ASSERT_TRUE(
google_apis::test_util::WriteStringToFile(db_path, "Hello world"));
// Some files are removed during cache initialization. Make sure these
// exist beforehand.
EXPECT_TRUE(PathExists(tmp_directory_.AppendASCII("id_quux.local")));
SetUpCacheMetadata();
// Check contents in "persistent" directory.
//
// "id_foo" is moved to temporary directory.
FileCacheEntry cache_entry;
ASSERT_TRUE(metadata_->GetCacheEntry("id_foo", "md5foo", &cache_entry));
EXPECT_EQ("md5foo", cache_entry.md5());
EXPECT_FALSE(cache_entry.is_persistent());
EXPECT_TRUE(test_util::CacheStatesEqual(
test_util::ToCacheEntry(test_util::TEST_CACHE_STATE_PRESENT),
cache_entry));
EXPECT_TRUE(PathExists(tmp_directory_.AppendASCII("id_foo.md5foo")));
// "id_bar" is present and dirty.
ASSERT_TRUE(metadata_->GetCacheEntry("id_bar", "", &cache_entry));
EXPECT_EQ("local", cache_entry.md5());
EXPECT_EQ(FileCache::CACHE_TYPE_PERSISTENT,
FileCache::GetSubDirectoryType(cache_entry));
EXPECT_TRUE(test_util::CacheStatesEqual(
test_util::ToCacheEntry(test_util::TEST_CACHE_STATE_PRESENT |
test_util::TEST_CACHE_STATE_DIRTY |
test_util::TEST_CACHE_STATE_PERSISTENT),
cache_entry));
EXPECT_TRUE(PathExists(persistent_directory_.AppendASCII("id_bar.local")));
// Check contents in "tmp" directory.
//
// "id_qux" is just present in tmp directory.
ASSERT_TRUE(metadata_->GetCacheEntry("id_qux", "md5qux", &cache_entry));
EXPECT_EQ("md5qux", cache_entry.md5());
EXPECT_EQ(FileCache::CACHE_TYPE_TMP,
FileCache::GetSubDirectoryType(cache_entry));
EXPECT_TRUE(test_util::CacheStatesEqual(
test_util::ToCacheEntry(test_util::TEST_CACHE_STATE_PRESENT),
cache_entry));
EXPECT_TRUE(PathExists(tmp_directory_.AppendASCII("id_qux.md5qux")));
// "id_quux" should be removed during cache initialization.
EXPECT_FALSE(metadata_->GetCacheEntry("id_quux", "md5qux", &cache_entry));
}
// Don't use TEST_F, as we don't want SetUp() and TearDown() for this test.
TEST(FileCacheMetadataExtraTest, CannotOpenDB) {
// Create nonexistent cache paths, so the initialization fails due to the
// failure of opening the DB.
std::vector<base::FilePath> cache_paths =
FileCache::GetCachePaths(
base::FilePath::FromUTF8Unsafe("/somewhere/nonexistent"));
scoped_ptr<FileCacheMetadata> metadata(new FileCacheMetadata(NULL));
EXPECT_FALSE(metadata->Initialize(cache_paths));
}
} // namespace internal
} // namespace drive
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