/*
 * Copyright (C) 2018 The Android Open Source Project
 *
 * 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 <cstdio>  // fclose
#include <memory>
#include <sstream>
#include <string>

#include "TestHelpers.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "idmap2/Idmap.h"
#include "idmap2/RawPrintVisitor.h"

using ::testing::NotNull;

namespace android::idmap2 {

TEST(RawPrintVisitorTests, CreateRawPrintVisitor) {
  const std::string target_apk_path(GetTestDataPath() + "/target/target.apk");
  std::unique_ptr<const ApkAssets> target_apk = ApkAssets::Load(target_apk_path);
  ASSERT_THAT(target_apk, NotNull());

  const std::string overlay_apk_path(GetTestDataPath() + "/overlay/overlay.apk");
  std::unique_ptr<const ApkAssets> overlay_apk = ApkAssets::Load(overlay_apk_path);
  ASSERT_THAT(overlay_apk, NotNull());

  const auto idmap = Idmap::FromApkAssets(*target_apk, *overlay_apk, PolicyFlags::POLICY_PUBLIC,
                                          /* enforce_overlayable */ true);
  ASSERT_TRUE(idmap);

  std::stringstream stream;
  RawPrintVisitor visitor(stream);
  (*idmap)->accept(&visitor);

  ASSERT_NE(stream.str().find("00000000: 504d4449  magic\n"), std::string::npos);
  ASSERT_NE(stream.str().find("00000004: 00000002  version\n"), std::string::npos);
  ASSERT_NE(stream.str().find("00000008: 76a20829  target crc\n"), std::string::npos);
  ASSERT_NE(stream.str().find("0000000c: e3c188b6  overlay crc\n"), std::string::npos);
  ASSERT_NE(stream.str().find("00000210:       7f  target package id\n"), std::string::npos);
  ASSERT_NE(stream.str().find("00000211:       7f  overlay package id\n"), std::string::npos);
  ASSERT_NE(stream.str().find("00000212: 00000004  target entry count\n"), std::string::npos);
  ASSERT_NE(stream.str().find("00000216: 00000004  overlay entry count\n"), std::string::npos);
  ASSERT_NE(stream.str().find("0000021a: 00000008  string pool index offset\n"), std::string::npos);
  ASSERT_NE(stream.str().find("0000021e: 000000b4  string pool byte length\n"), std::string::npos);
  ASSERT_NE(stream.str().find("00000222: 7f010000  target id: integer/int1\n"), std::string::npos);
  ASSERT_NE(stream.str().find("00000226:       07  type: reference (dynamic)\n"),
            std::string::npos);
  ASSERT_NE(stream.str().find("00000227: 7f010000  value: integer/int1\n"), std::string::npos);
  ASSERT_NE(stream.str().find("00000246: 7f010000  overlay id: integer/int1\n"), std::string::npos);
  ASSERT_NE(stream.str().find("0000024a: 7f010000  target id: integer/int1\n"), std::string::npos);
}

TEST(RawPrintVisitorTests, CreateRawPrintVisitorWithoutAccessToApks) {
  fclose(stderr);  // silence expected warnings from libandroidfw

  std::string raw(reinterpret_cast<const char*>(idmap_raw_data), idmap_raw_data_len);
  std::istringstream raw_stream(raw);

  const auto idmap = Idmap::FromBinaryStream(raw_stream);
  ASSERT_TRUE(idmap);

  std::stringstream stream;
  RawPrintVisitor visitor(stream);
  (*idmap)->accept(&visitor);

  ASSERT_NE(stream.str().find("00000000: 504d4449  magic\n"), std::string::npos);
  ASSERT_NE(stream.str().find("00000004: 00000002  version\n"), std::string::npos);
  ASSERT_NE(stream.str().find("00000008: 00001234  target crc\n"), std::string::npos);
  ASSERT_NE(stream.str().find("0000000c: 00005678  overlay crc\n"), std::string::npos);
  ASSERT_NE(stream.str().find("00000210:       7f  target package id\n"), std::string::npos);
  ASSERT_NE(stream.str().find("00000211:       7f  overlay package id\n"), std::string::npos);
  ASSERT_NE(stream.str().find("00000212: 00000003  target entry count\n"), std::string::npos);
  ASSERT_NE(stream.str().find("00000216: 00000003  overlay entry count\n"), std::string::npos);
  ASSERT_NE(stream.str().find("0000021a: 00000000  string pool index offset\n"), std::string::npos);
  ASSERT_NE(stream.str().find("0000021e: 00000000  string pool byte length\n"), std::string::npos);
  ASSERT_NE(stream.str().find("00000222: 7f020000  target id\n"), std::string::npos);
  ASSERT_NE(stream.str().find("00000226:       01  type: reference\n"), std::string::npos);
  ASSERT_NE(stream.str().find("00000227: 7f020000  value\n"), std::string::npos);

  ASSERT_NE(stream.str().find("0000023d: 7f020000  overlay id\n"), std::string::npos);
  ASSERT_NE(stream.str().find("00000241: 7f020000  target id\n"), std::string::npos);
}

}  // namespace android::idmap2