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// Copyright (C) 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "icing/file/file-backed-proto-log.h"
#include <cstdint>
#include <cstdlib>
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "icing/file/filesystem.h"
#include "icing/proto/document.pb.h"
#include "icing/testing/common-matchers.h"
#include "icing/testing/tmp-directory.h"
namespace icing {
namespace lib {
namespace {
using ::testing::NotNull;
class FileBackedProtoLogTest : public ::testing::Test {
protected:
// Adds a user-defined default construct because a const member variable may
// make the compiler accidentally delete the default constructor.
// https://stackoverflow.com/a/47368753
FileBackedProtoLogTest() {}
void SetUp() override {
file_path_ = GetTestTempDir() + "/proto_log";
filesystem_.DeleteFile(file_path_.c_str());
}
void TearDown() override { filesystem_.DeleteFile(file_path_.c_str()); }
const Filesystem filesystem_;
std::string file_path_;
bool compress_ = true;
int64_t max_proto_size_ = 256 * 1024; // 256 KiB
};
TEST_F(FileBackedProtoLogTest, Initialize) {
// max_proto_size must be greater than 0
int invalid_max_proto_size = 0;
ASSERT_THAT(FileBackedProtoLog<DocumentProto>::Create(
&filesystem_, file_path_,
FileBackedProtoLog<DocumentProto>::Options(
compress_, invalid_max_proto_size)),
StatusIs(libtextclassifier3::StatusCode::INVALID_ARGUMENT));
ICING_ASSERT_OK_AND_ASSIGN(
FileBackedProtoLog<DocumentProto>::CreateResult create_result,
FileBackedProtoLog<DocumentProto>::Create(
&filesystem_, file_path_,
FileBackedProtoLog<DocumentProto>::Options(compress_,
max_proto_size_)));
EXPECT_THAT(create_result.proto_log, NotNull());
EXPECT_FALSE(create_result.has_data_loss());
// Can't recreate the same file with different options.
ASSERT_THAT(FileBackedProtoLog<DocumentProto>::Create(
&filesystem_, file_path_,
FileBackedProtoLog<DocumentProto>::Options(!compress_,
max_proto_size_)),
StatusIs(libtextclassifier3::StatusCode::INVALID_ARGUMENT));
}
TEST_F(FileBackedProtoLogTest, CorruptHeader) {
{
ICING_ASSERT_OK_AND_ASSIGN(
FileBackedProtoLog<DocumentProto>::CreateResult create_result,
FileBackedProtoLog<DocumentProto>::Create(
&filesystem_, file_path_,
FileBackedProtoLog<DocumentProto>::Options(compress_,
max_proto_size_)));
auto recreated_proto_log = std::move(create_result.proto_log);
EXPECT_FALSE(create_result.has_data_loss());
int corrupt_offset =
offsetof(FileBackedProtoLog<DocumentProto>::Header, rewind_offset);
// We should never rewind to a negative offset.
int invalid_rewind_offset = -1;
filesystem_.PWrite(file_path_.c_str(), corrupt_offset,
&invalid_rewind_offset, sizeof(invalid_rewind_offset));
}
{
// Reinitialize the same proto_log
ASSERT_THAT(FileBackedProtoLog<DocumentProto>::Create(
&filesystem_, file_path_,
FileBackedProtoLog<DocumentProto>::Options(
compress_, max_proto_size_)),
StatusIs(libtextclassifier3::StatusCode::INTERNAL));
}
}
} // namespace
} // namespace lib
} // namespace icing
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