centipede/binary_info_test.cc

// Copyright 2023 The Centipede Authors.
//
// 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
//
//      https://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 "./centipede/binary_info.h"

#include <sstream>
#include <string>
#include <utility>

#include "gtest/gtest.h"
#include "./centipede/control_flow.h"
#include "./centipede/pc_info.h"
#include "./centipede/symbol_table.h"
#include "./common/test_util.h"

namespace fuzztest::internal {
namespace {

TEST(BinaryInfoTest, SerializesAndDeserializesBinaryInfoSuccessfully) {
  const std::string temp_dir = GetTestTempDir(test_info_->name());

  const PCTable input_pcs = {{/*pc=*/0, /*flags=*/1}, {/*pc=*/2, /*flags=*/3}};
  std::string input_symbols =
      R"(FunctionOne
    source/location/one.cc:1:0

    FunctionTwo
    source/location/two.cc:2:0

)";
  const CFTable cf_table = {1, 2, 3, 0, 0, 2, 4, 0};
  std::istringstream input_stream(input_symbols);
  SymbolTable symbol_table;
  symbol_table.ReadFromLLVMSymbolizer(input_stream);
  BinaryInfo input;
  input.pc_table = input_pcs;
  input.symbols = std::move(symbol_table);
  input.cf_table = cf_table;
  input.Write(temp_dir);
  BinaryInfo output;
  output.Read(temp_dir);

  EXPECT_EQ(input.pc_table, output.pc_table);
  EXPECT_EQ(input.symbols, output.symbols);
  EXPECT_EQ(input.cf_table, output.cf_table);
}

TEST(BinaryInfoTest, SerializesAndDeserializesEmptyBinaryInfoSuccessfully) {
  const std::string temp_dir = GetTestTempDir(test_info_->name());

  const PCTable input_pcs = {};
  std::string input_symbols = "";
  const CFTable cf_table = {};
  std::istringstream input_stream(input_symbols);
  SymbolTable symbol_table;
  symbol_table.ReadFromLLVMSymbolizer(input_stream);
  BinaryInfo input;
  input.pc_table = input_pcs;
  input.symbols = std::move(symbol_table);
  input.cf_table = cf_table;
  input.Write(temp_dir);
  BinaryInfo output;
  output.Read(temp_dir);

  EXPECT_EQ(input.pc_table, output.pc_table);
  EXPECT_EQ(input.symbols, output.symbols);
  EXPECT_EQ(input.cf_table, output.cf_table);
}

}  // namespace
}  // namespace fuzztest::internal