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#include "base/scoped_ptr.h"
#include "base/util.h"
#include "base/file_stream.h"
#include "storage/encrypted_string_storage.h"
#include "testing/base/public/gunit.h"
DECLARE_string(test_tmpdir);
namespace mozc {
namespace storage {
class EncryptedStringStorageTest : public testing::Test {
protected:
void SetUp() {
Util::SetUserProfileDirectory(FLAGS_test_tmpdir);
filename_ = Util::JoinPath(Util::GetUserProfileDirectory(),
"encrypted_string_storage_for_test.db");
storage_.reset(new EncryptedStringStorage(filename_));
}
string filename_;
scoped_ptr<EncryptedStringStorage> storage_;
};
TEST_F(EncryptedStringStorageTest, SaveAndLoad) {
const char *kData = "abcdefghijklmnopqrstuvwxyz";
ASSERT_TRUE(storage_->Save(kData));
string output;
ASSERT_TRUE(storage_->Load(&output));
EXPECT_EQ(kData, output);
}
TEST_F(EncryptedStringStorageTest, Encrypt) {
const string original_data = "abcdefghijklmnopqrstuvwxyz";
ASSERT_TRUE(storage_->Save(original_data));
InputFileStream ifs(filename_.c_str(), (ios::in | ios::binary));
const size_t kBufSize = 128;
char buf[kBufSize];
// |ifs.readsome(buf, kBufSize)| returns 0 on Visual C++ because
// |ifs.rdbuf()->in_avail()| is still 0 just after the file is opened.
// So we use 'read' and 'gcount' instead.
ifs.read(buf, kBufSize);
const size_t read_size = ifs.gcount();
ifs.peek();
ASSERT_TRUE(ifs.eof());
const string result(buf, read_size);
// Saved stirng is longer than original string since it has some data
// used for encryption.
EXPECT_LT(original_data.size(), result.size());
EXPECT_TRUE(result.find(original_data) == string::npos);
}
} // namespace storage
} // namespace mozc