// Copyright (c) 2012 The Chromium OS 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 <glib.h>
#include <stdint.h>

#include <string>
#include <vector>

#include <base/strings/string_util.h>
#include <base/strings/stringprintf.h>
#include <base/time/time.h>
#include <chromeos/dbus/service_constants.h>
#include "gtest/gtest.h"

#include "update_engine/action_pipe.h"
#include "update_engine/constants.h"
#include "update_engine/mock_connection_manager.h"
#include "update_engine/mock_http_fetcher.h"
#include "update_engine/omaha_hash_calculator.h"
#include "update_engine/omaha_request_action.h"
#include "update_engine/omaha_request_params.h"
#include "update_engine/prefs.h"
#include "update_engine/test_utils.h"
#include "update_engine/utils.h"

using base::Time;
using base::TimeDelta;
using std::string;
using std::vector;
using testing::_;
using testing::AllOf;
using testing::DoAll;
using testing::Ge;
using testing::Le;
using testing::NiceMock;
using testing::Return;
using testing::SetArgumentPointee;
using testing::AnyNumber;

namespace chromeos_update_engine {

class OmahaRequestActionTest : public ::testing::Test {};

namespace {

FakeSystemState fake_system_state;
OmahaRequestParams kDefaultTestParams(
    &fake_system_state,
    OmahaRequestParams::kOsPlatform,
    OmahaRequestParams::kOsVersion,
    "service_pack",
    "x86-generic",
    OmahaRequestParams::kAppId,
    "0.1.0.0",
    "en-US",
    "unittest",
    "OEM MODEL 09235 7471",
    "ChromeOSFirmware.1.0",
    "0X0A1",
    false,   // delta okay
    false,   // interactive
    "http://url",
    "",      // target_version_prefix
    false,   // use_p2p_for_downloading
    false);  // use_p2p_for_sharing

string GetNoUpdateResponse(const string& app_id) {
  return string(
      "<?xml version=\"1.0\" encoding=\"UTF-8\"?><response protocol=\"3.0\">"
      "<daystart elapsed_seconds=\"100\"/>"
      "<app appid=\"") + app_id + "\" status=\"ok\"><ping "
      "status=\"ok\"/><updatecheck status=\"noupdate\"/></app></response>";
}

string GetNoUpdateResponseWithEntity(const string& app_id) {
  return string(
      "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
      "<!DOCTYPE response ["
      "<!ENTITY CrOS \"ChromeOS\">"
      "]>"
      "<response protocol=\"3.0\">"
      "<daystart elapsed_seconds=\"100\"/>"
      "<app appid=\"") + app_id + "\" status=\"ok\"><ping "
      "status=\"ok\"/><updatecheck status=\"noupdate\"/></app></response>";
}

string GetUpdateResponse2(const string& app_id,
                          const string& version,
                          const string& more_info_url,
                          const string& prompt,
                          const string& codebase,
                          const string& filename,
                          const string& hash,
                          const string& needsadmin,
                          const string& size,
                          const string& deadline,
                          const string& max_days_to_scatter,
                          const string& elapsed_days,
                          bool disable_p2p_for_downloading,
                          bool disable_p2p_for_sharing) {
  string response =
      "<?xml version=\"1.0\" encoding=\"UTF-8\"?><response "
      "protocol=\"3.0\">"
      "<daystart elapsed_seconds=\"100\"" +
      (elapsed_days.empty() ? "" : (" elapsed_days=\"" + elapsed_days + "\"")) +
      "/>"
      "<app appid=\"" + app_id + "\" status=\"ok\">"
      "<ping status=\"ok\"/><updatecheck status=\"ok\">"
      "<urls><url codebase=\"" + codebase + "\"/></urls>"
      "<manifest version=\"" + version + "\">"
      "<packages><package hash=\"not-used\" name=\"" + filename +  "\" "
      "size=\"" + size + "\"/></packages>"
      "<actions><action event=\"postinstall\" "
      "ChromeOSVersion=\"" + version + "\" "
      "MoreInfo=\"" + more_info_url + "\" Prompt=\"" + prompt + "\" "
      "IsDelta=\"true\" "
      "IsDeltaPayload=\"true\" "
      "MaxDaysToScatter=\"" + max_days_to_scatter + "\" "
      "sha256=\"" + hash + "\" "
      "needsadmin=\"" + needsadmin + "\" " +
      (deadline.empty() ? "" : ("deadline=\"" + deadline + "\" ")) +
      (disable_p2p_for_downloading ?
          "DisableP2PForDownloading=\"true\" " : "") +
      (disable_p2p_for_sharing ? "DisableP2PForSharing=\"true\" " : "") +
      "/></actions></manifest></updatecheck></app></response>";
  LOG(INFO) << "Response = " << response;
  return response;
}

string GetUpdateResponse(const string& app_id,
                         const string& version,
                         const string& more_info_url,
                         const string& prompt,
                         const string& codebase,
                         const string& filename,
                         const string& hash,
                         const string& needsadmin,
                         const string& size,
                         const string& deadline) {
  return GetUpdateResponse2(app_id,
                            version,
                            more_info_url,
                            prompt,
                            codebase,
                            filename,
                            hash,
                            needsadmin,
                            size,
                            deadline,
                            "7",
                            "42",    // elapsed_days
                            false,   // disable_p2p_for_downloading
                            false);  // disable_p2p_for sharing
}

class OmahaRequestActionTestProcessorDelegate : public ActionProcessorDelegate {
 public:
  OmahaRequestActionTestProcessorDelegate()
      : loop_(nullptr),
        expected_code_(ErrorCode::kSuccess) {}
  virtual ~OmahaRequestActionTestProcessorDelegate() {
  }
  virtual void ProcessingDone(const ActionProcessor* processor,
                              ErrorCode code) {
    ASSERT_TRUE(loop_);
    g_main_loop_quit(loop_);
  }

  virtual void ActionCompleted(ActionProcessor* processor,
                               AbstractAction* action,
                               ErrorCode code) {
    // make sure actions always succeed
    if (action->Type() == OmahaRequestAction::StaticType())
      EXPECT_EQ(expected_code_, code);
    else
      EXPECT_EQ(ErrorCode::kSuccess, code);
  }
  GMainLoop *loop_;
  ErrorCode expected_code_;
};

gboolean StartProcessorInRunLoop(gpointer data) {
  ActionProcessor *processor = reinterpret_cast<ActionProcessor*>(data);
  processor->StartProcessing();
  return FALSE;
}
}  // namespace

class OutputObjectCollectorAction;

template<>
class ActionTraits<OutputObjectCollectorAction> {
 public:
  // Does not take an object for input
  typedef OmahaResponse InputObjectType;
  // On success, puts the output path on output
  typedef NoneType OutputObjectType;
};

class OutputObjectCollectorAction : public Action<OutputObjectCollectorAction> {
 public:
  OutputObjectCollectorAction() : has_input_object_(false) {}
  void PerformAction() {
    // copy input object
    has_input_object_ = HasInputObject();
    if (has_input_object_)
      omaha_response_ = GetInputObject();
    processor_->ActionComplete(this, ErrorCode::kSuccess);
  }
  // Should never be called
  void TerminateProcessing() {
    CHECK(false);
  }
  // Debugging/logging
  static std::string StaticType() {
    return "OutputObjectCollectorAction";
  }
  std::string Type() const { return StaticType(); }
  bool has_input_object_;
  OmahaResponse omaha_response_;
};

// Returns true iff an output response was obtained from the
// OmahaRequestAction. |prefs| may be null, in which case a local PrefsMock
// is used. |payload_state| may be null, in which case a local mock is used.
// |p2p_manager| may be null, in which case a local mock is used.
// |connection_manager| may be null, in which case a local mock is used.
// out_response may be null. If |fail_http_response_code| is non-negative,
// the transfer will fail with that code. |ping_only| is passed through to the
// OmahaRequestAction constructor. out_post_data may be null; if non-null, the
// post-data received by the mock HttpFetcher is returned.
//
// The |expected_check_result|, |expected_check_reaction| and
// |expected_error_code| parameters are for checking expectations
// about reporting UpdateEngine.Check.{Result,Reaction,DownloadError}
// UMA statistics. Use the appropriate ::kUnset value to specify that
// the given metric should not be reported.
bool TestUpdateCheck(PrefsInterface* prefs,
                     PayloadStateInterface *payload_state,
                     P2PManager *p2p_manager,
                     ConnectionManager *connection_manager,
                     OmahaRequestParams* params,
                     const string& http_response,
                     int fail_http_response_code,
                     bool ping_only,
                     ErrorCode expected_code,
                     metrics::CheckResult expected_check_result,
                     metrics::CheckReaction expected_check_reaction,
                     metrics::DownloadErrorCode expected_download_error_code,
                     OmahaResponse* out_response,
                     vector<char>* out_post_data) {
  GMainLoop* loop = g_main_loop_new(g_main_context_default(), FALSE);
  MockHttpFetcher* fetcher = new MockHttpFetcher(http_response.data(),
                                                 http_response.size(),
                                                 nullptr);
  if (fail_http_response_code >= 0) {
    fetcher->FailTransfer(fail_http_response_code);
  }
  FakeSystemState fake_system_state;
  if (prefs)
    fake_system_state.set_prefs(prefs);
  if (payload_state)
    fake_system_state.set_payload_state(payload_state);
  if (p2p_manager)
    fake_system_state.set_p2p_manager(p2p_manager);
  if (connection_manager)
    fake_system_state.set_connection_manager(connection_manager);
  fake_system_state.set_request_params(params);
  OmahaRequestAction action(&fake_system_state,
                            nullptr,
                            fetcher,
                            ping_only);
  OmahaRequestActionTestProcessorDelegate delegate;
  delegate.loop_ = loop;
  delegate.expected_code_ = expected_code;

  ActionProcessor processor;
  processor.set_delegate(&delegate);
  processor.EnqueueAction(&action);

  OutputObjectCollectorAction collector_action;
  BondActions(&action, &collector_action);
  processor.EnqueueAction(&collector_action);

  EXPECT_CALL(*fake_system_state.mock_metrics_lib(), SendEnumToUMA(_, _, _))
      .Times(AnyNumber());
  EXPECT_CALL(*fake_system_state.mock_metrics_lib(),
      SendEnumToUMA(metrics::kMetricCheckResult,
          static_cast<int>(expected_check_result),
          static_cast<int>(metrics::CheckResult::kNumConstants) - 1))
      .Times(expected_check_result == metrics::CheckResult::kUnset ? 0 : 1);
  EXPECT_CALL(*fake_system_state.mock_metrics_lib(),
      SendEnumToUMA(metrics::kMetricCheckReaction,
          static_cast<int>(expected_check_reaction),
          static_cast<int>(metrics::CheckReaction::kNumConstants) - 1))
      .Times(expected_check_reaction == metrics::CheckReaction::kUnset ? 0 : 1);
  EXPECT_CALL(*fake_system_state.mock_metrics_lib(),
      SendSparseToUMA(metrics::kMetricCheckDownloadErrorCode,
          static_cast<int>(expected_download_error_code)))
      .Times(expected_download_error_code == metrics::DownloadErrorCode::kUnset
             ? 0 : 1);

  g_timeout_add(0, &StartProcessorInRunLoop, &processor);
  g_main_loop_run(loop);
  g_main_loop_unref(loop);
  if (collector_action.has_input_object_ && out_response)
    *out_response = collector_action.omaha_response_;
  if (out_post_data)
    *out_post_data = fetcher->post_data();
  return collector_action.has_input_object_;
}

// Tests Event requests -- they should always succeed. |out_post_data|
// may be null; if non-null, the post-data received by the mock
// HttpFetcher is returned.
void TestEvent(OmahaRequestParams params,
               OmahaEvent* event,
               const string& http_response,
               vector<char>* out_post_data) {
  GMainLoop* loop = g_main_loop_new(g_main_context_default(), FALSE);
  MockHttpFetcher* fetcher = new MockHttpFetcher(http_response.data(),
                                                 http_response.size(),
                                                 nullptr);
  FakeSystemState fake_system_state;
  fake_system_state.set_request_params(&params);
  OmahaRequestAction action(&fake_system_state, event, fetcher, false);
  OmahaRequestActionTestProcessorDelegate delegate;
  delegate.loop_ = loop;
  ActionProcessor processor;
  processor.set_delegate(&delegate);
  processor.EnqueueAction(&action);

  g_timeout_add(0, &StartProcessorInRunLoop, &processor);
  g_main_loop_run(loop);
  g_main_loop_unref(loop);
  if (out_post_data)
    *out_post_data = fetcher->post_data();
}

TEST(OmahaRequestActionTest, RejectEntities) {
  OmahaResponse response;
  ASSERT_FALSE(
      TestUpdateCheck(nullptr,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &kDefaultTestParams,
                      GetNoUpdateResponseWithEntity(OmahaRequestParams::kAppId),
                      -1,
                      false,  // ping_only
                      ErrorCode::kOmahaRequestXMLHasEntityDecl,
                      metrics::CheckResult::kParsingError,
                      metrics::CheckReaction::kUnset,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));
  EXPECT_FALSE(response.update_exists);
}

TEST(OmahaRequestActionTest, NoUpdateTest) {
  OmahaResponse response;
  ASSERT_TRUE(
      TestUpdateCheck(nullptr,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &kDefaultTestParams,
                      GetNoUpdateResponse(OmahaRequestParams::kAppId),
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kNoUpdateAvailable,
                      metrics::CheckReaction::kUnset,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));
  EXPECT_FALSE(response.update_exists);
}

TEST(OmahaRequestActionTest, ValidUpdateTest) {
  OmahaResponse response;
  ASSERT_TRUE(
      TestUpdateCheck(nullptr,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &kDefaultTestParams,
                      GetUpdateResponse(OmahaRequestParams::kAppId,
                                        "1.2.3.4",  // version
                                        "http://more/info",
                                        "true",  // prompt
                                        "http://code/base/",  // dl url
                                        "file.signed",  // file name
                                        "HASH1234=",  // checksum
                                        "false",  // needs admin
                                        "123",  // size
                                        "20101020"),  // deadline
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kUpdateAvailable,
                      metrics::CheckReaction::kUpdating,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));
  EXPECT_TRUE(response.update_exists);
  EXPECT_TRUE(response.update_exists);
  EXPECT_EQ("1.2.3.4", response.version);
  EXPECT_EQ("http://code/base/file.signed", response.payload_urls[0]);
  EXPECT_EQ("http://more/info", response.more_info_url);
  EXPECT_EQ("HASH1234=", response.hash);
  EXPECT_EQ(123, response.size);
  EXPECT_TRUE(response.prompt);
  EXPECT_EQ("20101020", response.deadline);
}

TEST(OmahaRequestActionTest, ValidUpdateBlockedByConnection) {
  OmahaResponse response;
  // Set up a connection manager that doesn't allow a valid update over
  // the current ethernet connection.
  MockConnectionManager mock_cm(nullptr);
  EXPECT_CALL(mock_cm, GetConnectionProperties(_, _, _))
    .WillRepeatedly(DoAll(SetArgumentPointee<1>(kNetEthernet),
                          SetArgumentPointee<2>(NetworkTethering::kUnknown),
                          Return(true)));
  EXPECT_CALL(mock_cm, IsUpdateAllowedOver(kNetEthernet, _))
    .WillRepeatedly(Return(false));
  EXPECT_CALL(mock_cm, StringForConnectionType(kNetEthernet))
    .WillRepeatedly(Return(shill::kTypeEthernet));

  ASSERT_FALSE(
      TestUpdateCheck(nullptr,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      &mock_cm,  // connection_manager
                      &kDefaultTestParams,
                      GetUpdateResponse(OmahaRequestParams::kAppId,
                                        "1.2.3.4",  // version
                                        "http://more/info",
                                        "true",  // prompt
                                        "http://code/base/",  // dl url
                                        "file.signed",  // file name
                                        "HASH1234=",  // checksum
                                        "false",  // needs admin
                                        "123",  // size
                                        ""),  // deadline
                      -1,
                      false,  // ping_only
                      ErrorCode::kOmahaUpdateIgnoredPerPolicy,
                      metrics::CheckResult::kUpdateAvailable,
                      metrics::CheckReaction::kIgnored,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));
  EXPECT_FALSE(response.update_exists);
}

TEST(OmahaRequestActionTest, ValidUpdateBlockedByRollback) {
  string rollback_version = "1234.0.0";
  OmahaResponse response;

  MockPayloadState mock_payload_state;
  EXPECT_CALL(mock_payload_state, GetRollbackVersion())
    .WillRepeatedly(Return(rollback_version));

  ASSERT_FALSE(
      TestUpdateCheck(nullptr,  // prefs
                      &mock_payload_state,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &kDefaultTestParams,
                      GetUpdateResponse(OmahaRequestParams::kAppId,
                                        rollback_version,  // version
                                        "http://more/info",
                                        "true",  // prompt
                                        "http://code/base/",  // dl url
                                        "file.signed",  // file name
                                        "HASH1234=",  // checksum
                                        "false",  // needs admin
                                        "123",  // size
                                        ""),  // deadline
                      -1,
                      false,  // ping_only
                      ErrorCode::kOmahaUpdateIgnoredPerPolicy,
                      metrics::CheckResult::kUpdateAvailable,
                      metrics::CheckReaction::kIgnored,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));
  EXPECT_FALSE(response.update_exists);
}

TEST(OmahaRequestActionTest, WallClockBasedWaitAloneCausesScattering) {
  OmahaResponse response;
  OmahaRequestParams params = kDefaultTestParams;
  params.set_wall_clock_based_wait_enabled(true);
  params.set_update_check_count_wait_enabled(false);
  params.set_waiting_period(TimeDelta::FromDays(2));

  string prefs_dir;
  EXPECT_TRUE(utils::MakeTempDirectory("ue_ut_prefs.XXXXXX",
                                       &prefs_dir));
  ScopedDirRemover temp_dir_remover(prefs_dir);

  Prefs prefs;
  LOG_IF(ERROR, !prefs.Init(base::FilePath(prefs_dir)))
      << "Failed to initialize preferences.";

  ASSERT_FALSE(
      TestUpdateCheck(&prefs,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &params,
                      GetUpdateResponse2(OmahaRequestParams::kAppId,
                                         "1.2.3.4",  // version
                                         "http://more/info",
                                         "true",  // prompt
                                         "http://code/base/",  // dl url
                                         "file.signed",  // file name
                                         "HASH1234=",  // checksum
                                         "false",  // needs admin
                                         "123",  // size
                                         "",  // deadline
                                         "7",  // max days to scatter
                                         "42",  // elapsed_days
                                         false,  // disable_p2p_for_downloading
                                         false),  // disable_p2p_for sharing
                      -1,
                      false,  // ping_only
                      ErrorCode::kOmahaUpdateDeferredPerPolicy,
                      metrics::CheckResult::kUpdateAvailable,
                      metrics::CheckReaction::kDeferring,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));
  EXPECT_FALSE(response.update_exists);

  // Verify if we are interactive check we don't defer.
  params.set_interactive(true);
  ASSERT_TRUE(
      TestUpdateCheck(&prefs,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &params,
                      GetUpdateResponse2(OmahaRequestParams::kAppId,
                                         "1.2.3.4",  // version
                                         "http://more/info",
                                         "true",  // prompt
                                         "http://code/base/",  // dl url
                                         "file.signed",  // file name
                                         "HASH1234=",  // checksum
                                         "false",  // needs admin
                                         "123",  // size
                                         "",  // deadline
                                         "7",  // max days to scatter
                                         "42",  // elapsed_days
                                         false,  // disable_p2p_for_downloading
                                         false),  // disable_p2p_for sharing
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kUpdateAvailable,
                      metrics::CheckReaction::kUpdating,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));
  EXPECT_TRUE(response.update_exists);
}

TEST(OmahaRequestActionTest, NoWallClockBasedWaitCausesNoScattering) {
  OmahaResponse response;
  OmahaRequestParams params = kDefaultTestParams;
  params.set_wall_clock_based_wait_enabled(false);
  params.set_waiting_period(TimeDelta::FromDays(2));

  params.set_update_check_count_wait_enabled(true);
  params.set_min_update_checks_needed(1);
  params.set_max_update_checks_allowed(8);

  string prefs_dir;
  EXPECT_TRUE(utils::MakeTempDirectory("ue_ut_prefs.XXXXXX",
                                       &prefs_dir));
  ScopedDirRemover temp_dir_remover(prefs_dir);

  Prefs prefs;
  LOG_IF(ERROR, !prefs.Init(base::FilePath(prefs_dir)))
      << "Failed to initialize preferences.";

  ASSERT_TRUE(
      TestUpdateCheck(&prefs,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &params,
                      GetUpdateResponse2(OmahaRequestParams::kAppId,
                                         "1.2.3.4",  // version
                                         "http://more/info",
                                         "true",  // prompt
                                         "http://code/base/",  // dl url
                                         "file.signed",  // file name
                                         "HASH1234=",  // checksum
                                         "false",  // needs admin
                                         "123",  // size
                                         "",  // deadline
                                         "7",  // max days to scatter
                                         "42",  // elapsed_days
                                         false,  // disable_p2p_for_downloading
                                         false),  // disable_p2p_for sharing
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kUpdateAvailable,
                      metrics::CheckReaction::kUpdating,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));
  EXPECT_TRUE(response.update_exists);
}

TEST(OmahaRequestActionTest, ZeroMaxDaysToScatterCausesNoScattering) {
  OmahaResponse response;
  OmahaRequestParams params = kDefaultTestParams;
  params.set_wall_clock_based_wait_enabled(true);
  params.set_waiting_period(TimeDelta::FromDays(2));

  params.set_update_check_count_wait_enabled(true);
  params.set_min_update_checks_needed(1);
  params.set_max_update_checks_allowed(8);

  string prefs_dir;
  EXPECT_TRUE(utils::MakeTempDirectory("ue_ut_prefs.XXXXXX",
                                       &prefs_dir));
  ScopedDirRemover temp_dir_remover(prefs_dir);

  Prefs prefs;
  LOG_IF(ERROR, !prefs.Init(base::FilePath(prefs_dir)))
      << "Failed to initialize preferences.";

  ASSERT_TRUE(
      TestUpdateCheck(&prefs,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &params,
                      GetUpdateResponse2(OmahaRequestParams::kAppId,
                                         "1.2.3.4",  // version
                                         "http://more/info",
                                         "true",  // prompt
                                         "http://code/base/",  // dl url
                                         "file.signed",  // file name
                                         "HASH1234=",  // checksum
                                         "false",  // needs admin
                                         "123",  // size
                                         "",  // deadline
                                         "0",  // max days to scatter
                                         "42",  // elapsed_days
                                         false,  // disable_p2p_for_downloading
                                         false),  // disable_p2p_for sharing
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kUpdateAvailable,
                      metrics::CheckReaction::kUpdating,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));
  EXPECT_TRUE(response.update_exists);
}


TEST(OmahaRequestActionTest, ZeroUpdateCheckCountCausesNoScattering) {
  OmahaResponse response;
  OmahaRequestParams params = kDefaultTestParams;
  params.set_wall_clock_based_wait_enabled(true);
  params.set_waiting_period(TimeDelta());

  params.set_update_check_count_wait_enabled(true);
  params.set_min_update_checks_needed(0);
  params.set_max_update_checks_allowed(0);

  string prefs_dir;
  EXPECT_TRUE(utils::MakeTempDirectory("ue_ut_prefs.XXXXXX",
                                       &prefs_dir));
  ScopedDirRemover temp_dir_remover(prefs_dir);

  Prefs prefs;
  LOG_IF(ERROR, !prefs.Init(base::FilePath(prefs_dir)))
      << "Failed to initialize preferences.";

  ASSERT_TRUE(TestUpdateCheck(
                      &prefs,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &params,
                      GetUpdateResponse2(OmahaRequestParams::kAppId,
                                         "1.2.3.4",  // version
                                         "http://more/info",
                                         "true",  // prompt
                                         "http://code/base/",  // dl url
                                         "file.signed",  // file name
                                         "HASH1234=",  // checksum
                                         "false",  // needs admin
                                         "123",  // size
                                         "",  // deadline
                                         "7",  // max days to scatter
                                         "42",  // elapsed_days
                                         false,  // disable_p2p_for_downloading
                                         false),  // disable_p2p_for sharing
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kUpdateAvailable,
                      metrics::CheckReaction::kUpdating,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));

  int64_t count;
  ASSERT_TRUE(prefs.GetInt64(kPrefsUpdateCheckCount, &count));
  ASSERT_EQ(count, 0);
  EXPECT_TRUE(response.update_exists);
}

TEST(OmahaRequestActionTest, NonZeroUpdateCheckCountCausesScattering) {
  OmahaResponse response;
  OmahaRequestParams params = kDefaultTestParams;
  params.set_wall_clock_based_wait_enabled(true);
  params.set_waiting_period(TimeDelta());

  params.set_update_check_count_wait_enabled(true);
  params.set_min_update_checks_needed(1);
  params.set_max_update_checks_allowed(8);

  string prefs_dir;
  EXPECT_TRUE(utils::MakeTempDirectory("ue_ut_prefs.XXXXXX",
                                       &prefs_dir));
  ScopedDirRemover temp_dir_remover(prefs_dir);

  Prefs prefs;
  LOG_IF(ERROR, !prefs.Init(base::FilePath(prefs_dir)))
      << "Failed to initialize preferences.";

  ASSERT_FALSE(TestUpdateCheck(
                      &prefs,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &params,
                      GetUpdateResponse2(OmahaRequestParams::kAppId,
                                         "1.2.3.4",  // version
                                         "http://more/info",
                                         "true",  // prompt
                                         "http://code/base/",  // dl url
                                         "file.signed",  // file name
                                         "HASH1234=",  // checksum
                                         "false",  // needs admin
                                         "123",  // size
                                         "",  // deadline
                                         "7",  // max days to scatter
                                         "42",  // elapsed_days
                                         false,  // disable_p2p_for_downloading
                                         false),  // disable_p2p_for sharing
                      -1,
                      false,  // ping_only
                      ErrorCode::kOmahaUpdateDeferredPerPolicy,
                      metrics::CheckResult::kUpdateAvailable,
                      metrics::CheckReaction::kDeferring,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));

  int64_t count;
  ASSERT_TRUE(prefs.GetInt64(kPrefsUpdateCheckCount, &count));
  ASSERT_GT(count, 0);
  EXPECT_FALSE(response.update_exists);

  // Verify if we are interactive check we don't defer.
  params.set_interactive(true);
  ASSERT_TRUE(
      TestUpdateCheck(&prefs,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &params,
                      GetUpdateResponse2(OmahaRequestParams::kAppId,
                                         "1.2.3.4",  // version
                                         "http://more/info",
                                         "true",  // prompt
                                         "http://code/base/",  // dl url
                                         "file.signed",  // file name
                                         "HASH1234=",  // checksum
                                         "false",  // needs admin
                                         "123",  // size
                                         "",  // deadline
                                         "7",  // max days to scatter
                                         "42",  // elapsed_days
                                         false,  // disable_p2p_for_downloading
                                         false),  // disable_p2p_for sharing
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kUpdateAvailable,
                      metrics::CheckReaction::kUpdating,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));
  EXPECT_TRUE(response.update_exists);
}

TEST(OmahaRequestActionTest, ExistingUpdateCheckCountCausesScattering) {
  OmahaResponse response;
  OmahaRequestParams params = kDefaultTestParams;
  params.set_wall_clock_based_wait_enabled(true);
  params.set_waiting_period(TimeDelta());

  params.set_update_check_count_wait_enabled(true);
  params.set_min_update_checks_needed(1);
  params.set_max_update_checks_allowed(8);

  string prefs_dir;
  EXPECT_TRUE(utils::MakeTempDirectory("ue_ut_prefs.XXXXXX",
                                       &prefs_dir));
  ScopedDirRemover temp_dir_remover(prefs_dir);

  Prefs prefs;
  LOG_IF(ERROR, !prefs.Init(base::FilePath(prefs_dir)))
      << "Failed to initialize preferences.";

  ASSERT_TRUE(prefs.SetInt64(kPrefsUpdateCheckCount, 5));

  ASSERT_FALSE(TestUpdateCheck(
                      &prefs,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &params,
                      GetUpdateResponse2(OmahaRequestParams::kAppId,
                                         "1.2.3.4",  // version
                                         "http://more/info",
                                         "true",  // prompt
                                         "http://code/base/",  // dl url
                                         "file.signed",  // file name
                                         "HASH1234=",  // checksum
                                         "false",  // needs admin
                                         "123",  // size
                                         "",  // deadline
                                         "7",  // max days to scatter
                                         "42",  // elapsed_days
                                         false,  // disable_p2p_for_downloading
                                         false),  // disable_p2p_for sharing
                      -1,
                      false,  // ping_only
                      ErrorCode::kOmahaUpdateDeferredPerPolicy,
                      metrics::CheckResult::kUpdateAvailable,
                      metrics::CheckReaction::kDeferring,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));

  int64_t count;
  ASSERT_TRUE(prefs.GetInt64(kPrefsUpdateCheckCount, &count));
  // count remains the same, as the decrementing happens in update_attempter
  // which this test doesn't exercise.
  ASSERT_EQ(count, 5);
  EXPECT_FALSE(response.update_exists);

  // Verify if we are interactive check we don't defer.
  params.set_interactive(true);
  ASSERT_TRUE(
      TestUpdateCheck(&prefs,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &params,
                      GetUpdateResponse2(OmahaRequestParams::kAppId,
                                         "1.2.3.4",  // version
                                         "http://more/info",
                                         "true",  // prompt
                                         "http://code/base/",  // dl url
                                         "file.signed",  // file name
                                         "HASH1234=",  // checksum
                                         "false",  // needs admin
                                         "123",  // size
                                         "",  // deadline
                                         "7",  // max days to scatter
                                         "42",  // elapsed_days
                                         false,  // disable_p2p_for_downloading
                                         false),  // disable_p2p_for sharing
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kUpdateAvailable,
                      metrics::CheckReaction::kUpdating,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));
  EXPECT_TRUE(response.update_exists);
}

TEST(OmahaRequestActionTest, NoOutputPipeTest) {
  const string http_response(GetNoUpdateResponse(OmahaRequestParams::kAppId));

  GMainLoop *loop = g_main_loop_new(g_main_context_default(), FALSE);

  FakeSystemState fake_system_state;
  OmahaRequestParams params = kDefaultTestParams;
  fake_system_state.set_request_params(&params);
  OmahaRequestAction action(&fake_system_state, nullptr,
                            new MockHttpFetcher(http_response.data(),
                                                http_response.size(),
                                                nullptr),
                            false);
  OmahaRequestActionTestProcessorDelegate delegate;
  delegate.loop_ = loop;
  ActionProcessor processor;
  processor.set_delegate(&delegate);
  processor.EnqueueAction(&action);

  g_timeout_add(0, &StartProcessorInRunLoop, &processor);
  g_main_loop_run(loop);
  g_main_loop_unref(loop);
  EXPECT_FALSE(processor.IsRunning());
}

TEST(OmahaRequestActionTest, InvalidXmlTest) {
  OmahaResponse response;
  ASSERT_FALSE(
      TestUpdateCheck(nullptr,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &kDefaultTestParams,
                      "invalid xml>",
                      -1,
                      false,  // ping_only
                      ErrorCode::kOmahaRequestXMLParseError,
                      metrics::CheckResult::kParsingError,
                      metrics::CheckReaction::kUnset,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));
  EXPECT_FALSE(response.update_exists);
}

TEST(OmahaRequestActionTest, EmptyResponseTest) {
  OmahaResponse response;
  ASSERT_FALSE(
      TestUpdateCheck(nullptr,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &kDefaultTestParams,
                      "",
                      -1,
                      false,  // ping_only
                      ErrorCode::kOmahaRequestEmptyResponseError,
                      metrics::CheckResult::kParsingError,
                      metrics::CheckReaction::kUnset,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));
  EXPECT_FALSE(response.update_exists);
}

TEST(OmahaRequestActionTest, MissingStatusTest) {
  OmahaResponse response;
  ASSERT_FALSE(TestUpdateCheck(
      nullptr,  // prefs
      nullptr,  // payload_state
      nullptr,  // p2p_manager
      nullptr,  // connection_manager
      &kDefaultTestParams,
      "<?xml version=\"1.0\" encoding=\"UTF-8\"?><response protocol=\"3.0\">"
      "<daystart elapsed_seconds=\"100\"/>"
      "<app appid=\"foo\" status=\"ok\">"
      "<ping status=\"ok\"/>"
      "<updatecheck/></app></response>",
      -1,
      false,  // ping_only
      ErrorCode::kOmahaResponseInvalid,
      metrics::CheckResult::kParsingError,
      metrics::CheckReaction::kUnset,
      metrics::DownloadErrorCode::kUnset,
      &response,
      nullptr));
  EXPECT_FALSE(response.update_exists);
}

TEST(OmahaRequestActionTest, InvalidStatusTest) {
  OmahaResponse response;
  ASSERT_FALSE(TestUpdateCheck(
      nullptr,  // prefs
      nullptr,  // payload_state
      nullptr,  // p2p_manager
      nullptr,  // connection_manager
      &kDefaultTestParams,
      "<?xml version=\"1.0\" encoding=\"UTF-8\"?><response protocol=\"3.0\">"
      "<daystart elapsed_seconds=\"100\"/>"
      "<app appid=\"foo\" status=\"ok\">"
      "<ping status=\"ok\"/>"
      "<updatecheck status=\"InvalidStatusTest\"/></app></response>",
      -1,
      false,  // ping_only
      ErrorCode::kOmahaResponseInvalid,
      metrics::CheckResult::kParsingError,
      metrics::CheckReaction::kUnset,
      metrics::DownloadErrorCode::kUnset,
      &response,
      nullptr));
  EXPECT_FALSE(response.update_exists);
}

TEST(OmahaRequestActionTest, MissingNodesetTest) {
  OmahaResponse response;
  ASSERT_FALSE(TestUpdateCheck(
      nullptr,  // prefs
      nullptr,  // payload_state
      nullptr,  // p2p_manager
      nullptr,  // connection_manager
      &kDefaultTestParams,
      "<?xml version=\"1.0\" encoding=\"UTF-8\"?><response protocol=\"3.0\">"
      "<daystart elapsed_seconds=\"100\"/>"
      "<app appid=\"foo\" status=\"ok\">"
      "<ping status=\"ok\"/>"
      "</app></response>",
      -1,
      false,  // ping_only
      ErrorCode::kOmahaResponseInvalid,
      metrics::CheckResult::kParsingError,
      metrics::CheckReaction::kUnset,
      metrics::DownloadErrorCode::kUnset,
      &response,
      nullptr));
  EXPECT_FALSE(response.update_exists);
}

TEST(OmahaRequestActionTest, MissingFieldTest) {
  string input_response =
      "<?xml version=\"1.0\" encoding=\"UTF-8\"?><response protocol=\"3.0\">"
      "<daystart elapsed_seconds=\"100\"/>"
      "<app appid=\"xyz\" status=\"ok\">"
      "<updatecheck status=\"ok\">"
      "<urls><url codebase=\"http://missing/field/test/\"/></urls>"
      "<manifest version=\"10.2.3.4\">"
      "<packages><package hash=\"not-used\" name=\"f\" "
      "size=\"587\"/></packages>"
      "<actions><action event=\"postinstall\" "
      "ChromeOSVersion=\"10.2.3.4\" "
      "Prompt=\"false\" "
      "IsDelta=\"true\" "
      "IsDeltaPayload=\"false\" "
      "sha256=\"lkq34j5345\" "
      "needsadmin=\"true\" "
      "/></actions></manifest></updatecheck></app></response>";
  LOG(INFO) << "Input Response = " << input_response;

  OmahaResponse response;
  ASSERT_TRUE(TestUpdateCheck(nullptr,  // prefs
                              nullptr,  // payload_state
                              nullptr,  // p2p_manager
                              nullptr,  // connection_manager
                              &kDefaultTestParams,
                              input_response,
                              -1,
                              false,  // ping_only
                              ErrorCode::kSuccess,
                              metrics::CheckResult::kUpdateAvailable,
                              metrics::CheckReaction::kUpdating,
                              metrics::DownloadErrorCode::kUnset,
                              &response,
                              nullptr));
  EXPECT_TRUE(response.update_exists);
  EXPECT_EQ("10.2.3.4", response.version);
  EXPECT_EQ("http://missing/field/test/f", response.payload_urls[0]);
  EXPECT_EQ("", response.more_info_url);
  EXPECT_EQ("lkq34j5345", response.hash);
  EXPECT_EQ(587, response.size);
  EXPECT_FALSE(response.prompt);
  EXPECT_TRUE(response.deadline.empty());
}

namespace {
class TerminateEarlyTestProcessorDelegate : public ActionProcessorDelegate {
 public:
  void ProcessingStopped(const ActionProcessor* processor) {
    ASSERT_TRUE(loop_);
    g_main_loop_quit(loop_);
  }
  GMainLoop *loop_;
};

gboolean TerminateTransferTestStarter(gpointer data) {
  ActionProcessor *processor = reinterpret_cast<ActionProcessor*>(data);
  processor->StartProcessing();
  CHECK(processor->IsRunning());
  processor->StopProcessing();
  return FALSE;
}
}  // namespace

TEST(OmahaRequestActionTest, TerminateTransferTest) {
  string http_response("doesn't matter");
  GMainLoop *loop = g_main_loop_new(g_main_context_default(), FALSE);

  FakeSystemState fake_system_state;
  OmahaRequestParams params = kDefaultTestParams;
  fake_system_state.set_request_params(&params);
  OmahaRequestAction action(&fake_system_state, nullptr,
                            new MockHttpFetcher(http_response.data(),
                                                http_response.size(),
                                                nullptr),
                            false);
  TerminateEarlyTestProcessorDelegate delegate;
  delegate.loop_ = loop;
  ActionProcessor processor;
  processor.set_delegate(&delegate);
  processor.EnqueueAction(&action);

  g_timeout_add(0, &TerminateTransferTestStarter, &processor);
  g_main_loop_run(loop);
  g_main_loop_unref(loop);
}

TEST(OmahaRequestActionTest, XmlEncodeTest) {
  EXPECT_EQ("ab", XmlEncode("ab"));
  EXPECT_EQ("a&lt;b", XmlEncode("a<b"));
  EXPECT_EQ("&lt;&amp;&gt;", XmlEncode("<&>"));
  EXPECT_EQ("&amp;lt;&amp;amp;&amp;gt;", XmlEncode("&lt;&amp;&gt;"));

  vector<char> post_data;

  // Make sure XML Encode is being called on the params
  FakeSystemState fake_system_state;
  OmahaRequestParams params(&fake_system_state,
                            OmahaRequestParams::kOsPlatform,
                            OmahaRequestParams::kOsVersion,
                            "testtheservice_pack>",
                            "x86 generic<id",
                            OmahaRequestParams::kAppId,
                            "0.1.0.0",
                            "en-US",
                            "unittest_track&lt;",
                            "<OEM MODEL>",
                            "ChromeOSFirmware.1.0",
                            "EC100",
                            false,   // delta okay
                            false,   // interactive
                            "http://url",
                            "",      // target_version_prefix
                            false,   // use_p2p_for_downloading
                            false);  // use_p2p_for_sharing
  OmahaResponse response;
  ASSERT_FALSE(
      TestUpdateCheck(nullptr,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &params,
                      "invalid xml>",
                      -1,
                      false,  // ping_only
                      ErrorCode::kOmahaRequestXMLParseError,
                      metrics::CheckResult::kParsingError,
                      metrics::CheckReaction::kUnset,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      &post_data));
  // convert post_data to string
  string post_str(&post_data[0], post_data.size());
  EXPECT_NE(post_str.find("testtheservice_pack&gt;"), string::npos);
  EXPECT_EQ(post_str.find("testtheservice_pack>"), string::npos);
  EXPECT_NE(post_str.find("x86 generic&lt;id"), string::npos);
  EXPECT_EQ(post_str.find("x86 generic<id"), string::npos);
  EXPECT_NE(post_str.find("unittest_track&amp;lt;"), string::npos);
  EXPECT_EQ(post_str.find("unittest_track&lt;"), string::npos);
  EXPECT_NE(post_str.find("&lt;OEM MODEL&gt;"), string::npos);
  EXPECT_EQ(post_str.find("<OEM MODEL>"), string::npos);
}

TEST(OmahaRequestActionTest, XmlDecodeTest) {
  OmahaResponse response;
  ASSERT_TRUE(
      TestUpdateCheck(nullptr,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &kDefaultTestParams,
                      GetUpdateResponse(OmahaRequestParams::kAppId,
                                        "1.2.3.4",  // version
                                        "testthe&lt;url",  // more info
                                        "true",  // prompt
                                        "testthe&amp;codebase/",  // dl url
                                        "file.signed",  // file name
                                        "HASH1234=",  // checksum
                                        "false",  // needs admin
                                        "123",  // size
                                        "&lt;20110101"),  // deadline
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kUpdateAvailable,
                      metrics::CheckReaction::kUpdating,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));

  EXPECT_EQ(response.more_info_url, "testthe<url");
  EXPECT_EQ(response.payload_urls[0], "testthe&codebase/file.signed");
  EXPECT_EQ(response.deadline, "<20110101");
}

TEST(OmahaRequestActionTest, ParseIntTest) {
  OmahaResponse response;
  ASSERT_TRUE(
      TestUpdateCheck(nullptr,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &kDefaultTestParams,
                      GetUpdateResponse(OmahaRequestParams::kAppId,
                                        "1.2.3.4",  // version
                                        "theurl",  // more info
                                        "true",  // prompt
                                        "thecodebase/",  // dl url
                                        "file.signed",  // file name
                                        "HASH1234=",  // checksum
                                        "false",  // needs admin
                                        // overflows int32_t:
                                        "123123123123123",  // size
                                        "deadline"),
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kUpdateAvailable,
                      metrics::CheckReaction::kUpdating,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));

  EXPECT_EQ(response.size, 123123123123123ll);
}

TEST(OmahaRequestActionTest, FormatUpdateCheckOutputTest) {
  vector<char> post_data;
  NiceMock<PrefsMock> prefs;
  EXPECT_CALL(prefs, GetString(kPrefsPreviousVersion, _))
      .WillOnce(DoAll(SetArgumentPointee<1>(string("")), Return(true)));
  EXPECT_CALL(prefs, SetString(kPrefsPreviousVersion, _)).Times(1);
  ASSERT_FALSE(TestUpdateCheck(&prefs,
                               nullptr,  // payload_state
                               nullptr,  // p2p_manager
                               nullptr,  // connection_manager
                               &kDefaultTestParams,
                               "invalid xml>",
                               -1,
                               false,  // ping_only
                               ErrorCode::kOmahaRequestXMLParseError,
                               metrics::CheckResult::kParsingError,
                               metrics::CheckReaction::kUnset,
                               metrics::DownloadErrorCode::kUnset,
                               nullptr,  // response
                               &post_data));
  // convert post_data to string
  string post_str(&post_data[0], post_data.size());
  EXPECT_NE(post_str.find(
      "        <ping active=\"1\" a=\"-1\" r=\"-1\"></ping>\n"
      "        <updatecheck targetversionprefix=\"\"></updatecheck>\n"),
      string::npos);
  EXPECT_NE(post_str.find("hardware_class=\"OEM MODEL 09235 7471\""),
            string::npos);
  EXPECT_NE(post_str.find("fw_version=\"ChromeOSFirmware.1.0\""),
            string::npos);
  EXPECT_NE(post_str.find("ec_version=\"0X0A1\""),
            string::npos);
}


TEST(OmahaRequestActionTest, FormatSuccessEventOutputTest) {
  vector<char> post_data;
  TestEvent(kDefaultTestParams,
            new OmahaEvent(OmahaEvent::kTypeUpdateDownloadStarted),
            "invalid xml>",
            &post_data);
  // convert post_data to string
  string post_str(&post_data[0], post_data.size());
  string expected_event = base::StringPrintf(
      "        <event eventtype=\"%d\" eventresult=\"%d\"></event>\n",
      OmahaEvent::kTypeUpdateDownloadStarted,
      OmahaEvent::kResultSuccess);
  EXPECT_NE(post_str.find(expected_event), string::npos);
  EXPECT_EQ(post_str.find("ping"), string::npos);
  EXPECT_EQ(post_str.find("updatecheck"), string::npos);
}

TEST(OmahaRequestActionTest, FormatErrorEventOutputTest) {
  vector<char> post_data;
  TestEvent(kDefaultTestParams,
            new OmahaEvent(OmahaEvent::kTypeDownloadComplete,
                           OmahaEvent::kResultError,
                           ErrorCode::kError),
            "invalid xml>",
            &post_data);
  // convert post_data to string
  string post_str(&post_data[0], post_data.size());
  string expected_event = base::StringPrintf(
      "        <event eventtype=\"%d\" eventresult=\"%d\" "
      "errorcode=\"%d\"></event>\n",
      OmahaEvent::kTypeDownloadComplete,
      OmahaEvent::kResultError,
      static_cast<int>(ErrorCode::kError));
  EXPECT_NE(post_str.find(expected_event), string::npos);
  EXPECT_EQ(post_str.find("updatecheck"), string::npos);
}

TEST(OmahaRequestActionTest, IsEventTest) {
  string http_response("doesn't matter");
  FakeSystemState fake_system_state;
  OmahaRequestParams params = kDefaultTestParams;
  fake_system_state.set_request_params(&params);
  OmahaRequestAction update_check_action(
      &fake_system_state,
      nullptr,
      new MockHttpFetcher(http_response.data(),
                          http_response.size(),
                          nullptr),
      false);
  EXPECT_FALSE(update_check_action.IsEvent());

  params = kDefaultTestParams;
  fake_system_state.set_request_params(&params);
  OmahaRequestAction event_action(
      &fake_system_state,
      new OmahaEvent(OmahaEvent::kTypeUpdateComplete),
      new MockHttpFetcher(http_response.data(),
                          http_response.size(),
                          nullptr),
      false);
  EXPECT_TRUE(event_action.IsEvent());
}

TEST(OmahaRequestActionTest, FormatDeltaOkayOutputTest) {
  for (int i = 0; i < 2; i++) {
    bool delta_okay = i == 1;
    const char* delta_okay_str = delta_okay ? "true" : "false";
    vector<char> post_data;
    FakeSystemState fake_system_state;
    OmahaRequestParams params(&fake_system_state,
                              OmahaRequestParams::kOsPlatform,
                              OmahaRequestParams::kOsVersion,
                              "service_pack",
                              "x86-generic",
                              OmahaRequestParams::kAppId,
                              "0.1.0.0",
                              "en-US",
                              "unittest_track",
                              "OEM MODEL REV 1234",
                              "ChromeOSFirmware.1.0",
                              "EC100",
                              delta_okay,
                              false,  // interactive
                              "http://url",
                              "",     // target_version_prefix
                              false,  // use_p2p_for_downloading
                              false);  // use_p2p_for_sharing
    ASSERT_FALSE(TestUpdateCheck(nullptr,  // prefs
                                 nullptr,  // payload_state
                                 nullptr,  // p2p_manager
                                 nullptr,  // connection_manager
                                 &params,
                                 "invalid xml>",
                                 -1,
                                 false,  // ping_only
                                 ErrorCode::kOmahaRequestXMLParseError,
                                 metrics::CheckResult::kParsingError,
                                 metrics::CheckReaction::kUnset,
                                 metrics::DownloadErrorCode::kUnset,
                                 nullptr,
                                 &post_data));
    // convert post_data to string
    string post_str(post_data.data(), post_data.size());
    EXPECT_NE(post_str.find(base::StringPrintf(" delta_okay=\"%s\"",
                                               delta_okay_str)),
              string::npos)
        << "i = " << i;
  }
}

TEST(OmahaRequestActionTest, FormatInteractiveOutputTest) {
  for (int i = 0; i < 2; i++) {
    bool interactive = i == 1;
    const char* interactive_str = interactive ? "ondemandupdate" : "scheduler";
    vector<char> post_data;
    FakeSystemState fake_system_state;
    OmahaRequestParams params(&fake_system_state,
                              OmahaRequestParams::kOsPlatform,
                              OmahaRequestParams::kOsVersion,
                              "service_pack",
                              "x86-generic",
                              OmahaRequestParams::kAppId,
                              "0.1.0.0",
                              "en-US",
                              "unittest_track",
                              "OEM MODEL REV 1234",
                              "ChromeOSFirmware.1.0",
                              "EC100",
                              true,   // delta_okay
                              interactive,
                              "http://url",
                              "",     // target_version_prefix
                              false,  // use_p2p_for_downloading
                              false);  // use_p2p_for_sharing
    ASSERT_FALSE(TestUpdateCheck(nullptr,  // prefs
                                 nullptr,  // payload_state
                                 nullptr,  // p2p_manager
                                 nullptr,  // connection_manager
                                 &params,
                                 "invalid xml>",
                                 -1,
                                 false,  // ping_only
                                 ErrorCode::kOmahaRequestXMLParseError,
                                 metrics::CheckResult::kParsingError,
                                 metrics::CheckReaction::kUnset,
                                 metrics::DownloadErrorCode::kUnset,
                                 nullptr,
                                 &post_data));
    // convert post_data to string
    string post_str(&post_data[0], post_data.size());
    EXPECT_NE(post_str.find(base::StringPrintf("installsource=\"%s\"",
                                               interactive_str)),
              string::npos)
        << "i = " << i;
  }
}

TEST(OmahaRequestActionTest, OmahaEventTest) {
  OmahaEvent default_event;
  EXPECT_EQ(OmahaEvent::kTypeUnknown, default_event.type);
  EXPECT_EQ(OmahaEvent::kResultError, default_event.result);
  EXPECT_EQ(ErrorCode::kError, default_event.error_code);

  OmahaEvent success_event(OmahaEvent::kTypeUpdateDownloadStarted);
  EXPECT_EQ(OmahaEvent::kTypeUpdateDownloadStarted, success_event.type);
  EXPECT_EQ(OmahaEvent::kResultSuccess, success_event.result);
  EXPECT_EQ(ErrorCode::kSuccess, success_event.error_code);

  OmahaEvent error_event(OmahaEvent::kTypeUpdateDownloadFinished,
                         OmahaEvent::kResultError,
                         ErrorCode::kError);
  EXPECT_EQ(OmahaEvent::kTypeUpdateDownloadFinished, error_event.type);
  EXPECT_EQ(OmahaEvent::kResultError, error_event.result);
  EXPECT_EQ(ErrorCode::kError, error_event.error_code);
}

TEST(OmahaRequestActionTest, PingTest) {
  for (int ping_only = 0; ping_only < 2; ping_only++) {
    NiceMock<PrefsMock> prefs;
    EXPECT_CALL(prefs, GetInt64(kPrefsMetricsCheckLastReportingTime, _))
      .Times(AnyNumber());
    EXPECT_CALL(prefs, SetInt64(_, _)).Times(AnyNumber());
    // Add a few hours to the day difference to test no rounding, etc.
    int64_t five_days_ago =
        (Time::Now() - TimeDelta::FromHours(5 * 24 + 13)).ToInternalValue();
    int64_t six_days_ago =
        (Time::Now() - TimeDelta::FromHours(6 * 24 + 11)).ToInternalValue();
    EXPECT_CALL(prefs, GetInt64(kPrefsInstallDateDays, _))
        .WillOnce(DoAll(SetArgumentPointee<1>(0), Return(true)));
    EXPECT_CALL(prefs, GetInt64(kPrefsLastActivePingDay, _))
        .WillOnce(DoAll(SetArgumentPointee<1>(six_days_ago), Return(true)));
    EXPECT_CALL(prefs, GetInt64(kPrefsLastRollCallPingDay, _))
        .WillOnce(DoAll(SetArgumentPointee<1>(five_days_ago), Return(true)));
    vector<char> post_data;
    ASSERT_TRUE(
        TestUpdateCheck(&prefs,
                        nullptr,  // payload_state
                        nullptr,  // p2p_manager
                        nullptr,  // connection_manager
                        &kDefaultTestParams,
                        GetNoUpdateResponse(OmahaRequestParams::kAppId),
                        -1,
                        ping_only,
                        ErrorCode::kSuccess,
                        metrics::CheckResult::kUnset,
                        metrics::CheckReaction::kUnset,
                        metrics::DownloadErrorCode::kUnset,
                        nullptr,
                        &post_data));
    string post_str(&post_data[0], post_data.size());
    EXPECT_NE(post_str.find("<ping active=\"1\" a=\"6\" r=\"5\"></ping>"),
              string::npos);
    if (ping_only) {
      EXPECT_EQ(post_str.find("updatecheck"), string::npos);
      EXPECT_EQ(post_str.find("previousversion"), string::npos);
    } else {
      EXPECT_NE(post_str.find("updatecheck"), string::npos);
      EXPECT_NE(post_str.find("previousversion"), string::npos);
    }
  }
}

TEST(OmahaRequestActionTest, ActivePingTest) {
  NiceMock<PrefsMock> prefs;
  EXPECT_CALL(prefs, GetInt64(kPrefsMetricsCheckLastReportingTime, _))
    .Times(AnyNumber());
  EXPECT_CALL(prefs, SetInt64(_, _)).Times(AnyNumber());
  int64_t three_days_ago =
      (Time::Now() - TimeDelta::FromHours(3 * 24 + 12)).ToInternalValue();
  int64_t now = Time::Now().ToInternalValue();
  EXPECT_CALL(prefs, GetInt64(kPrefsInstallDateDays, _))
      .WillOnce(DoAll(SetArgumentPointee<1>(0), Return(true)));
  EXPECT_CALL(prefs, GetInt64(kPrefsLastActivePingDay, _))
      .WillOnce(DoAll(SetArgumentPointee<1>(three_days_ago), Return(true)));
  EXPECT_CALL(prefs, GetInt64(kPrefsLastRollCallPingDay, _))
      .WillOnce(DoAll(SetArgumentPointee<1>(now), Return(true)));
  vector<char> post_data;
  ASSERT_TRUE(
      TestUpdateCheck(&prefs,
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &kDefaultTestParams,
                      GetNoUpdateResponse(OmahaRequestParams::kAppId),
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kNoUpdateAvailable,
                      metrics::CheckReaction::kUnset,
                      metrics::DownloadErrorCode::kUnset,
                      nullptr,
                      &post_data));
  string post_str(&post_data[0], post_data.size());
  EXPECT_NE(post_str.find("<ping active=\"1\" a=\"3\"></ping>"),
            string::npos);
}

TEST(OmahaRequestActionTest, RollCallPingTest) {
  NiceMock<PrefsMock> prefs;
  EXPECT_CALL(prefs, GetInt64(kPrefsMetricsCheckLastReportingTime, _))
    .Times(AnyNumber());
  EXPECT_CALL(prefs, SetInt64(_, _)).Times(AnyNumber());
  int64_t four_days_ago =
      (Time::Now() - TimeDelta::FromHours(4 * 24)).ToInternalValue();
  int64_t now = Time::Now().ToInternalValue();
  EXPECT_CALL(prefs, GetInt64(kPrefsInstallDateDays, _))
      .WillOnce(DoAll(SetArgumentPointee<1>(0), Return(true)));
  EXPECT_CALL(prefs, GetInt64(kPrefsLastActivePingDay, _))
      .WillOnce(DoAll(SetArgumentPointee<1>(now), Return(true)));
  EXPECT_CALL(prefs, GetInt64(kPrefsLastRollCallPingDay, _))
      .WillOnce(DoAll(SetArgumentPointee<1>(four_days_ago), Return(true)));
  vector<char> post_data;
  ASSERT_TRUE(
      TestUpdateCheck(&prefs,
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &kDefaultTestParams,
                      GetNoUpdateResponse(OmahaRequestParams::kAppId),
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kNoUpdateAvailable,
                      metrics::CheckReaction::kUnset,
                      metrics::DownloadErrorCode::kUnset,
                      nullptr,
                      &post_data));
  string post_str(&post_data[0], post_data.size());
  EXPECT_NE(post_str.find("<ping active=\"1\" r=\"4\"></ping>\n"),
            string::npos);
}

TEST(OmahaRequestActionTest, NoPingTest) {
  NiceMock<PrefsMock> prefs;
  EXPECT_CALL(prefs, GetInt64(kPrefsMetricsCheckLastReportingTime, _))
    .Times(AnyNumber());
  EXPECT_CALL(prefs, SetInt64(_, _)).Times(AnyNumber());
  int64_t one_hour_ago =
      (Time::Now() - TimeDelta::FromHours(1)).ToInternalValue();
  EXPECT_CALL(prefs, GetInt64(kPrefsInstallDateDays, _))
      .WillOnce(DoAll(SetArgumentPointee<1>(0), Return(true)));
  EXPECT_CALL(prefs, GetInt64(kPrefsLastActivePingDay, _))
      .WillOnce(DoAll(SetArgumentPointee<1>(one_hour_ago), Return(true)));
  EXPECT_CALL(prefs, GetInt64(kPrefsLastRollCallPingDay, _))
      .WillOnce(DoAll(SetArgumentPointee<1>(one_hour_ago), Return(true)));
  EXPECT_CALL(prefs, SetInt64(kPrefsLastActivePingDay, _)).Times(0);
  EXPECT_CALL(prefs, SetInt64(kPrefsLastRollCallPingDay, _)).Times(0);
  vector<char> post_data;
  ASSERT_TRUE(
      TestUpdateCheck(&prefs,
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &kDefaultTestParams,
                      GetNoUpdateResponse(OmahaRequestParams::kAppId),
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kNoUpdateAvailable,
                      metrics::CheckReaction::kUnset,
                      metrics::DownloadErrorCode::kUnset,
                      nullptr,
                      &post_data));
  string post_str(&post_data[0], post_data.size());
  EXPECT_EQ(post_str.find("ping"), string::npos);
}

TEST(OmahaRequestActionTest, IgnoreEmptyPingTest) {
  // This test ensures that we ignore empty ping only requests.
  NiceMock<PrefsMock> prefs;
  int64_t now = Time::Now().ToInternalValue();
  EXPECT_CALL(prefs, GetInt64(kPrefsLastActivePingDay, _))
      .WillOnce(DoAll(SetArgumentPointee<1>(now), Return(true)));
  EXPECT_CALL(prefs, GetInt64(kPrefsLastRollCallPingDay, _))
      .WillOnce(DoAll(SetArgumentPointee<1>(now), Return(true)));
  EXPECT_CALL(prefs, SetInt64(kPrefsLastActivePingDay, _)).Times(0);
  EXPECT_CALL(prefs, SetInt64(kPrefsLastRollCallPingDay, _)).Times(0);
  vector<char> post_data;
  EXPECT_TRUE(
      TestUpdateCheck(&prefs,
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &kDefaultTestParams,
                      GetNoUpdateResponse(OmahaRequestParams::kAppId),
                      -1,
                      true,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kUnset,
                      metrics::CheckReaction::kUnset,
                      metrics::DownloadErrorCode::kUnset,
                      nullptr,
                      &post_data));
  EXPECT_EQ(post_data.size(), 0);
}

TEST(OmahaRequestActionTest, BackInTimePingTest) {
  NiceMock<PrefsMock> prefs;
  EXPECT_CALL(prefs, GetInt64(kPrefsMetricsCheckLastReportingTime, _))
    .Times(AnyNumber());
  EXPECT_CALL(prefs, SetInt64(_, _)).Times(AnyNumber());
  int64_t future =
      (Time::Now() + TimeDelta::FromHours(3 * 24 + 4)).ToInternalValue();
  EXPECT_CALL(prefs, GetInt64(kPrefsInstallDateDays, _))
      .WillOnce(DoAll(SetArgumentPointee<1>(0), Return(true)));
  EXPECT_CALL(prefs, GetInt64(kPrefsLastActivePingDay, _))
      .WillOnce(DoAll(SetArgumentPointee<1>(future), Return(true)));
  EXPECT_CALL(prefs, GetInt64(kPrefsLastRollCallPingDay, _))
      .WillOnce(DoAll(SetArgumentPointee<1>(future), Return(true)));
  EXPECT_CALL(prefs, SetInt64(kPrefsLastActivePingDay, _))
      .WillOnce(Return(true));
  EXPECT_CALL(prefs, SetInt64(kPrefsLastRollCallPingDay, _))
      .WillOnce(Return(true));
  vector<char> post_data;
  ASSERT_TRUE(
      TestUpdateCheck(&prefs,
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &kDefaultTestParams,
                      "<?xml version=\"1.0\" encoding=\"UTF-8\"?><response "
                      "protocol=\"3.0\"><daystart elapsed_seconds=\"100\"/>"
                      "<app appid=\"foo\" status=\"ok\"><ping status=\"ok\"/>"
                      "<updatecheck status=\"noupdate\"/></app></response>",
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kNoUpdateAvailable,
                      metrics::CheckReaction::kUnset,
                      metrics::DownloadErrorCode::kUnset,
                      nullptr,
                      &post_data));
  string post_str(&post_data[0], post_data.size());
  EXPECT_EQ(post_str.find("ping"), string::npos);
}

TEST(OmahaRequestActionTest, LastPingDayUpdateTest) {
  // This test checks that the action updates the last ping day to now
  // minus 200 seconds with a slack of 5 seconds. Therefore, the test
  // may fail if it runs for longer than 5 seconds. It shouldn't run
  // that long though.
  int64_t midnight =
      (Time::Now() - TimeDelta::FromSeconds(200)).ToInternalValue();
  int64_t midnight_slack =
      (Time::Now() - TimeDelta::FromSeconds(195)).ToInternalValue();
  NiceMock<PrefsMock> prefs;
  EXPECT_CALL(prefs, GetInt64(_, _)).Times(AnyNumber());
  EXPECT_CALL(prefs, SetInt64(_, _)).Times(AnyNumber());
  EXPECT_CALL(prefs, SetInt64(kPrefsLastActivePingDay,
                              AllOf(Ge(midnight), Le(midnight_slack))))
      .WillOnce(Return(true));
  EXPECT_CALL(prefs, SetInt64(kPrefsLastRollCallPingDay,
                              AllOf(Ge(midnight), Le(midnight_slack))))
      .WillOnce(Return(true));
  ASSERT_TRUE(
      TestUpdateCheck(&prefs,
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &kDefaultTestParams,
                      "<?xml version=\"1.0\" encoding=\"UTF-8\"?><response "
                      "protocol=\"3.0\"><daystart elapsed_seconds=\"200\"/>"
                      "<app appid=\"foo\" status=\"ok\"><ping status=\"ok\"/>"
                      "<updatecheck status=\"noupdate\"/></app></response>",
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kNoUpdateAvailable,
                      metrics::CheckReaction::kUnset,
                      metrics::DownloadErrorCode::kUnset,
                      nullptr,
                      nullptr));
}

TEST(OmahaRequestActionTest, NoElapsedSecondsTest) {
  NiceMock<PrefsMock> prefs;
  EXPECT_CALL(prefs, GetInt64(_, _)).Times(AnyNumber());
  EXPECT_CALL(prefs, SetInt64(_, _)).Times(AnyNumber());
  EXPECT_CALL(prefs, SetInt64(kPrefsLastActivePingDay, _)).Times(0);
  EXPECT_CALL(prefs, SetInt64(kPrefsLastRollCallPingDay, _)).Times(0);
  ASSERT_TRUE(
      TestUpdateCheck(&prefs,
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &kDefaultTestParams,
                      "<?xml version=\"1.0\" encoding=\"UTF-8\"?><response "
                      "protocol=\"3.0\"><daystart blah=\"200\"/>"
                      "<app appid=\"foo\" status=\"ok\"><ping status=\"ok\"/>"
                      "<updatecheck status=\"noupdate\"/></app></response>",
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kNoUpdateAvailable,
                      metrics::CheckReaction::kUnset,
                      metrics::DownloadErrorCode::kUnset,
                      nullptr,
                      nullptr));
}

TEST(OmahaRequestActionTest, BadElapsedSecondsTest) {
  NiceMock<PrefsMock> prefs;
  EXPECT_CALL(prefs, GetInt64(_, _)).Times(AnyNumber());
  EXPECT_CALL(prefs, SetInt64(_, _)).Times(AnyNumber());
  EXPECT_CALL(prefs, SetInt64(kPrefsLastActivePingDay, _)).Times(0);
  EXPECT_CALL(prefs, SetInt64(kPrefsLastRollCallPingDay, _)).Times(0);
  ASSERT_TRUE(
      TestUpdateCheck(&prefs,
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &kDefaultTestParams,
                      "<?xml version=\"1.0\" encoding=\"UTF-8\"?><response "
                      "protocol=\"3.0\"><daystart elapsed_seconds=\"x\"/>"
                      "<app appid=\"foo\" status=\"ok\"><ping status=\"ok\"/>"
                      "<updatecheck status=\"noupdate\"/></app></response>",
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kNoUpdateAvailable,
                      metrics::CheckReaction::kUnset,
                      metrics::DownloadErrorCode::kUnset,
                      nullptr,
                      nullptr));
}

TEST(OmahaRequestActionTest, NoUniqueIDTest) {
  vector<char> post_data;
  ASSERT_FALSE(TestUpdateCheck(nullptr,  // prefs
                               nullptr,  // payload_state
                               nullptr,  // p2p_manager
                               nullptr,  // connection_manager
                               &kDefaultTestParams,
                               "invalid xml>",
                               -1,
                               false,  // ping_only
                               ErrorCode::kOmahaRequestXMLParseError,
                               metrics::CheckResult::kParsingError,
                               metrics::CheckReaction::kUnset,
                               metrics::DownloadErrorCode::kUnset,
                               nullptr,  // response
                               &post_data));
  // convert post_data to string
  string post_str(&post_data[0], post_data.size());
  EXPECT_EQ(post_str.find("machineid="), string::npos);
  EXPECT_EQ(post_str.find("userid="), string::npos);
}

TEST(OmahaRequestActionTest, NetworkFailureTest) {
  OmahaResponse response;
  const int http_error_code =
      static_cast<int>(ErrorCode::kOmahaRequestHTTPResponseBase) + 501;
  ASSERT_FALSE(
      TestUpdateCheck(nullptr,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &kDefaultTestParams,
                      "",
                      501,
                      false,  // ping_only
                      static_cast<ErrorCode>(http_error_code),
                      metrics::CheckResult::kDownloadError,
                      metrics::CheckReaction::kUnset,
                      static_cast<metrics::DownloadErrorCode>(501),
                      &response,
                      nullptr));
  EXPECT_FALSE(response.update_exists);
}

TEST(OmahaRequestActionTest, NetworkFailureBadHTTPCodeTest) {
  OmahaResponse response;
  const int http_error_code =
      static_cast<int>(ErrorCode::kOmahaRequestHTTPResponseBase) + 999;
  ASSERT_FALSE(
      TestUpdateCheck(nullptr,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &kDefaultTestParams,
                      "",
                      1500,
                      false,  // ping_only
                      static_cast<ErrorCode>(http_error_code),
                      metrics::CheckResult::kDownloadError,
                      metrics::CheckReaction::kUnset,
                      metrics::DownloadErrorCode::kHttpStatusOther,
                      &response,
                      nullptr));
  EXPECT_FALSE(response.update_exists);
}

TEST(OmahaRequestActionTest, TestUpdateFirstSeenAtGetsPersistedFirstTime) {
  OmahaResponse response;
  OmahaRequestParams params = kDefaultTestParams;
  params.set_wall_clock_based_wait_enabled(true);
  params.set_waiting_period(TimeDelta().FromDays(1));
  params.set_update_check_count_wait_enabled(false);

  string prefs_dir;
  EXPECT_TRUE(utils::MakeTempDirectory("ue_ut_prefs.XXXXXX",
                                       &prefs_dir));
  ScopedDirRemover temp_dir_remover(prefs_dir);

  Prefs prefs;
  LOG_IF(ERROR, !prefs.Init(base::FilePath(prefs_dir)))
      << "Failed to initialize preferences.";

  ASSERT_FALSE(TestUpdateCheck(
                      &prefs,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &params,
                      GetUpdateResponse2(OmahaRequestParams::kAppId,
                                         "1.2.3.4",  // version
                                         "http://more/info",
                                         "true",  // prompt
                                         "http://code/base/",  // dl url
                                         "file.signed",  // file name
                                         "HASH1234=",  // checksum
                                         "false",  // needs admin
                                         "123",  // size
                                         "",  // deadline
                                         "7",  // max days to scatter
                                         "42",  // elapsed_days
                                         false,  // disable_p2p_for_downloading
                                         false),  // disable_p2p_for sharing
                      -1,
                      false,  // ping_only
                      ErrorCode::kOmahaUpdateDeferredPerPolicy,
                      metrics::CheckResult::kUpdateAvailable,
                      metrics::CheckReaction::kDeferring,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));

  int64_t timestamp = 0;
  ASSERT_TRUE(prefs.GetInt64(kPrefsUpdateFirstSeenAt, &timestamp));
  ASSERT_GT(timestamp, 0);
  EXPECT_FALSE(response.update_exists);

  // Verify if we are interactive check we don't defer.
  params.set_interactive(true);
  ASSERT_TRUE(
      TestUpdateCheck(&prefs,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &params,
                      GetUpdateResponse2(OmahaRequestParams::kAppId,
                                         "1.2.3.4",  // version
                                         "http://more/info",
                                         "true",  // prompt
                                         "http://code/base/",  // dl url
                                         "file.signed",  // file name
                                         "HASH1234=",  // checksum
                                         "false",  // needs admin
                                         "123",  // size
                                         "",  // deadline
                                         "7",  // max days to scatter
                                         "42",  // elapsed_days
                                         false,  // disable_p2p_for_downloading
                                         false),  // disable_p2p_for sharing
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kUpdateAvailable,
                      metrics::CheckReaction::kUpdating,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));
  EXPECT_TRUE(response.update_exists);
}

TEST(OmahaRequestActionTest, TestUpdateFirstSeenAtGetsUsedIfAlreadyPresent) {
  OmahaResponse response;
  OmahaRequestParams params = kDefaultTestParams;
  params.set_wall_clock_based_wait_enabled(true);
  params.set_waiting_period(TimeDelta().FromDays(1));
  params.set_update_check_count_wait_enabled(false);

  string prefs_dir;
  EXPECT_TRUE(utils::MakeTempDirectory("ue_ut_prefs.XXXXXX",
                                       &prefs_dir));
  ScopedDirRemover temp_dir_remover(prefs_dir);

  Prefs prefs;
  LOG_IF(ERROR, !prefs.Init(base::FilePath(prefs_dir)))
      << "Failed to initialize preferences.";

  // Set the timestamp to a very old value such that it exceeds the
  // waiting period set above.
  Time t1;
  Time::FromString("1/1/2012", &t1);
  ASSERT_TRUE(prefs.SetInt64(kPrefsUpdateFirstSeenAt, t1.ToInternalValue()));
  ASSERT_TRUE(TestUpdateCheck(
                      &prefs,  // prefs
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &params,
                      GetUpdateResponse2(OmahaRequestParams::kAppId,
                                         "1.2.3.4",  // version
                                         "http://more/info",
                                         "true",  // prompt
                                         "http://code/base/",  // dl url
                                         "file.signed",  // file name
                                         "HASH1234=",  // checksum
                                         "false",  // needs admin
                                         "123",  // size
                                         "",  // deadline
                                         "7",  // max days to scatter
                                         "42",  // elapsed_days
                                         false,  // disable_p2p_for_downloading
                                         false),  // disable_p2p_for sharing
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kUpdateAvailable,
                      metrics::CheckReaction::kUpdating,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));

  EXPECT_TRUE(response.update_exists);

  // Make sure the timestamp t1 is unchanged showing that it was reused.
  int64_t timestamp = 0;
  ASSERT_TRUE(prefs.GetInt64(kPrefsUpdateFirstSeenAt, &timestamp));
  ASSERT_TRUE(timestamp == t1.ToInternalValue());
}

TEST(OmahaRequestActionTest, TestChangingToMoreStableChannel) {
  // Create a uniquely named test directory.
  string test_dir;
  ASSERT_TRUE(utils::MakeTempDirectory(
          "omaha_request_action-test-XXXXXX", &test_dir));

  ASSERT_EQ(0, System(string("mkdir -p ") + test_dir + "/etc"));
  ASSERT_EQ(0, System(string("mkdir -p ") + test_dir +
                      kStatefulPartition + "/etc"));
  vector<char> post_data;
  NiceMock<PrefsMock> prefs;
  ASSERT_TRUE(WriteFileString(
      test_dir + "/etc/lsb-release",
      "CHROMEOS_RELEASE_APPID={11111111-1111-1111-1111-111111111111}\n"
      "CHROMEOS_BOARD_APPID={22222222-2222-2222-2222-222222222222}\n"
      "CHROMEOS_RELEASE_TRACK=canary-channel\n"));
  ASSERT_TRUE(WriteFileString(
      test_dir + kStatefulPartition + "/etc/lsb-release",
      "CHROMEOS_IS_POWERWASH_ALLOWED=true\n"
      "CHROMEOS_RELEASE_TRACK=stable-channel\n"));
  OmahaRequestParams params = kDefaultTestParams;
  params.set_root(test_dir);
  params.SetLockDown(false);
  params.Init("1.2.3.4", "", 0);
  EXPECT_EQ("canary-channel", params.current_channel());
  EXPECT_EQ("stable-channel", params.target_channel());
  EXPECT_TRUE(params.to_more_stable_channel());
  EXPECT_TRUE(params.is_powerwash_allowed());
  ASSERT_FALSE(TestUpdateCheck(&prefs,
                               nullptr,  // payload_state
                               nullptr,  // p2p_manager
                               nullptr,  // connection_manager
                               &params,
                               "invalid xml>",
                               -1,
                               false,  // ping_only
                               ErrorCode::kOmahaRequestXMLParseError,
                               metrics::CheckResult::kParsingError,
                               metrics::CheckReaction::kUnset,
                               metrics::DownloadErrorCode::kUnset,
                               nullptr,  // response
                               &post_data));
  // convert post_data to string
  string post_str(&post_data[0], post_data.size());
  EXPECT_NE(string::npos, post_str.find(
      "appid=\"{22222222-2222-2222-2222-222222222222}\" "
      "version=\"0.0.0.0\" from_version=\"1.2.3.4\" "
      "track=\"stable-channel\" from_track=\"canary-channel\" "));

  ASSERT_TRUE(utils::RecursiveUnlinkDir(test_dir));
}

TEST(OmahaRequestActionTest, TestChangingToLessStableChannel) {
  // Create a uniquely named test directory.
  string test_dir;
  ASSERT_TRUE(utils::MakeTempDirectory(
          "omaha_request_action-test-XXXXXX", &test_dir));

  ASSERT_EQ(0, System(string("mkdir -p ") + test_dir + "/etc"));
  ASSERT_EQ(0, System(string("mkdir -p ") + test_dir +
                      kStatefulPartition + "/etc"));
  vector<char> post_data;
  NiceMock<PrefsMock> prefs;
  ASSERT_TRUE(WriteFileString(
      test_dir + "/etc/lsb-release",
      "CHROMEOS_RELEASE_APPID={11111111-1111-1111-1111-111111111111}\n"
      "CHROMEOS_BOARD_APPID={22222222-2222-2222-2222-222222222222}\n"
      "CHROMEOS_RELEASE_TRACK=stable-channel\n"));
  ASSERT_TRUE(WriteFileString(
      test_dir + kStatefulPartition + "/etc/lsb-release",
      "CHROMEOS_RELEASE_TRACK=canary-channel\n"));
  OmahaRequestParams params = kDefaultTestParams;
  params.set_root(test_dir);
  params.SetLockDown(false);
  params.Init("5.6.7.8", "", 0);
  EXPECT_EQ("stable-channel", params.current_channel());
  EXPECT_EQ("canary-channel", params.target_channel());
  EXPECT_FALSE(params.to_more_stable_channel());
  EXPECT_FALSE(params.is_powerwash_allowed());
  ASSERT_FALSE(TestUpdateCheck(&prefs,
                               nullptr,  // payload_state
                               nullptr,  // p2p_manager
                               nullptr,  // connection_manager
                               &params,
                               "invalid xml>",
                               -1,
                               false,  // ping_only
                               ErrorCode::kOmahaRequestXMLParseError,
                               metrics::CheckResult::kParsingError,
                               metrics::CheckReaction::kUnset,
                               metrics::DownloadErrorCode::kUnset,
                               nullptr,  // response
                               &post_data));
  // convert post_data to string
  string post_str(&post_data[0], post_data.size());
  EXPECT_NE(string::npos, post_str.find(
      "appid=\"{11111111-1111-1111-1111-111111111111}\" "
      "version=\"5.6.7.8\" "
      "track=\"canary-channel\" from_track=\"stable-channel\""));
  EXPECT_EQ(string::npos, post_str.find("from_version"));

  ASSERT_TRUE(utils::RecursiveUnlinkDir(test_dir));
}

void P2PTest(bool initial_allow_p2p_for_downloading,
             bool initial_allow_p2p_for_sharing,
             bool omaha_disable_p2p_for_downloading,
             bool omaha_disable_p2p_for_sharing,
             bool payload_state_allow_p2p_attempt,
             bool expect_p2p_client_lookup,
             const string& p2p_client_result_url,
             bool expected_allow_p2p_for_downloading,
             bool expected_allow_p2p_for_sharing,
             const string& expected_p2p_url) {
  OmahaResponse response;
  OmahaRequestParams request_params = kDefaultTestParams;
  request_params.set_use_p2p_for_downloading(initial_allow_p2p_for_downloading);
  request_params.set_use_p2p_for_sharing(initial_allow_p2p_for_sharing);

  MockPayloadState mock_payload_state;
  EXPECT_CALL(mock_payload_state, P2PAttemptAllowed())
      .WillRepeatedly(Return(payload_state_allow_p2p_attempt));
  MockP2PManager mock_p2p_manager;
  mock_p2p_manager.fake().SetLookupUrlForFileResult(p2p_client_result_url);

  TimeDelta timeout = TimeDelta::FromSeconds(kMaxP2PNetworkWaitTimeSeconds);
  EXPECT_CALL(mock_p2p_manager, LookupUrlForFile(_, _, timeout, _))
      .Times(expect_p2p_client_lookup ? 1 : 0);

  ASSERT_TRUE(
      TestUpdateCheck(nullptr,  // prefs
                      &mock_payload_state,
                      &mock_p2p_manager,
                      nullptr,  // connection_manager
                      &request_params,
                      GetUpdateResponse2(OmahaRequestParams::kAppId,
                                         "1.2.3.4",  // version
                                         "http://more/info",
                                         "true",  // prompt
                                         "http://code/base/",  // dl url
                                         "file.signed",  // file name
                                         "HASH1234=",  // checksum
                                         "false",  // needs admin
                                         "123",  // size
                                         "",  // deadline
                                         "7",  // max days to scatter
                                         "42",  // elapsed_days
                                         omaha_disable_p2p_for_downloading,
                                         omaha_disable_p2p_for_sharing),
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kUpdateAvailable,
                      metrics::CheckReaction::kUpdating,
                      metrics::DownloadErrorCode::kUnset,
                      &response,
                      nullptr));
  EXPECT_TRUE(response.update_exists);

  EXPECT_EQ(response.disable_p2p_for_downloading,
            omaha_disable_p2p_for_downloading);
  EXPECT_EQ(response.disable_p2p_for_sharing,
            omaha_disable_p2p_for_sharing);

  EXPECT_EQ(request_params.use_p2p_for_downloading(),
            expected_allow_p2p_for_downloading);

  EXPECT_EQ(request_params.use_p2p_for_sharing(),
            expected_allow_p2p_for_sharing);

  EXPECT_EQ(request_params.p2p_url(), expected_p2p_url);
}

TEST(OmahaRequestActionTest, P2PWithPeer) {
  P2PTest(true,                   // initial_allow_p2p_for_downloading
          true,                   // initial_allow_p2p_for_sharing
          false,                  // omaha_disable_p2p_for_downloading
          false,                  // omaha_disable_p2p_for_sharing
          true,                   // payload_state_allow_p2p_attempt
          true,                   // expect_p2p_client_lookup
          "http://1.3.5.7/p2p",   // p2p_client_result_url
          true,                   // expected_allow_p2p_for_downloading
          true,                   // expected_allow_p2p_for_sharing
          "http://1.3.5.7/p2p");  // expected_p2p_url
}

TEST(OmahaRequestActionTest, P2PWithoutPeer) {
  P2PTest(true,                   // initial_allow_p2p_for_downloading
          true,                   // initial_allow_p2p_for_sharing
          false,                  // omaha_disable_p2p_for_downloading
          false,                  // omaha_disable_p2p_for_sharing
          true,                   // payload_state_allow_p2p_attempt
          true,                   // expect_p2p_client_lookup
          "",                     // p2p_client_result_url
          false,                  // expected_allow_p2p_for_downloading
          true,                   // expected_allow_p2p_for_sharing
          "");                    // expected_p2p_url
}

TEST(OmahaRequestActionTest, P2PDownloadNotAllowed) {
  P2PTest(false,                  // initial_allow_p2p_for_downloading
          true,                   // initial_allow_p2p_for_sharing
          false,                  // omaha_disable_p2p_for_downloading
          false,                  // omaha_disable_p2p_for_sharing
          true,                   // payload_state_allow_p2p_attempt
          false,                  // expect_p2p_client_lookup
          "unset",                // p2p_client_result_url
          false,                  // expected_allow_p2p_for_downloading
          true,                   // expected_allow_p2p_for_sharing
          "");                    // expected_p2p_url
}

TEST(OmahaRequestActionTest, P2PWithPeerDownloadDisabledByOmaha) {
  P2PTest(true,                   // initial_allow_p2p_for_downloading
          true,                   // initial_allow_p2p_for_sharing
          true,                   // omaha_disable_p2p_for_downloading
          false,                  // omaha_disable_p2p_for_sharing
          true,                   // payload_state_allow_p2p_attempt
          false,                  // expect_p2p_client_lookup
          "unset",                // p2p_client_result_url
          false,                  // expected_allow_p2p_for_downloading
          true,                   // expected_allow_p2p_for_sharing
          "");                    // expected_p2p_url
}

TEST(OmahaRequestActionTest, P2PWithPeerSharingDisabledByOmaha) {
  P2PTest(true,                   // initial_allow_p2p_for_downloading
          true,                   // initial_allow_p2p_for_sharing
          false,                  // omaha_disable_p2p_for_downloading
          true,                   // omaha_disable_p2p_for_sharing
          true,                   // payload_state_allow_p2p_attempt
          true,                   // expect_p2p_client_lookup
          "http://1.3.5.7/p2p",   // p2p_client_result_url
          true,                   // expected_allow_p2p_for_downloading
          false,                  // expected_allow_p2p_for_sharing
          "http://1.3.5.7/p2p");  // expected_p2p_url
}

TEST(OmahaRequestActionTest, P2PWithPeerBothDisabledByOmaha) {
  P2PTest(true,                   // initial_allow_p2p_for_downloading
          true,                   // initial_allow_p2p_for_sharing
          true,                   // omaha_disable_p2p_for_downloading
          true,                   // omaha_disable_p2p_for_sharing
          true,                   // payload_state_allow_p2p_attempt
          false,                  // expect_p2p_client_lookup
          "unset",                // p2p_client_result_url
          false,                  // expected_allow_p2p_for_downloading
          false,                  // expected_allow_p2p_for_sharing
          "");                    // expected_p2p_url
}

bool InstallDateParseHelper(const std::string &elapsed_days,
                            PrefsInterface* prefs,
                            OmahaResponse *response) {
  return
      TestUpdateCheck(prefs,
                      nullptr,  // payload_state
                      nullptr,  // p2p_manager
                      nullptr,  // connection_manager
                      &kDefaultTestParams,
                      GetUpdateResponse2(OmahaRequestParams::kAppId,
                                         "1.2.3.4",  // version
                                         "http://more/info",
                                         "true",  // prompt
                                         "http://code/base/",  // dl url
                                         "file.signed",  // file name
                                         "HASH1234=",  // checksum
                                         "false",  // needs admin
                                         "123",  // size
                                         "",  // deadline
                                         "7",  // max days to scatter
                                         elapsed_days,
                                         false,  // disable_p2p_for_downloading
                                         false),  // disable_p2p_for sharing
                      -1,
                      false,  // ping_only
                      ErrorCode::kSuccess,
                      metrics::CheckResult::kUpdateAvailable,
                      metrics::CheckReaction::kUpdating,
                      metrics::DownloadErrorCode::kUnset,
                      response,
                      nullptr);
}

TEST(OmahaRequestActionTest, ParseInstallDateFromResponse) {
  OmahaResponse response;
  string temp_dir;
  Prefs prefs;
  EXPECT_TRUE(utils::MakeTempDirectory("ParseInstallDateFromResponse.XXXXXX",
                                       &temp_dir));
  prefs.Init(base::FilePath(temp_dir));

  // Check that we parse elapsed_days in the Omaha Response correctly.
  // and that the kPrefsInstallDateDays value is written to.
  EXPECT_FALSE(prefs.Exists(kPrefsInstallDateDays));
  EXPECT_TRUE(InstallDateParseHelper("42", &prefs, &response));
  EXPECT_TRUE(response.update_exists);
  EXPECT_EQ(42, response.install_date_days);
  EXPECT_TRUE(prefs.Exists(kPrefsInstallDateDays));
  int64_t prefs_days;
  EXPECT_TRUE(prefs.GetInt64(kPrefsInstallDateDays, &prefs_days));
  EXPECT_EQ(prefs_days, 42);

  // If there already is a value set, we shouldn't do anything.
  EXPECT_TRUE(InstallDateParseHelper("7", &prefs, &response));
  EXPECT_TRUE(response.update_exists);
  EXPECT_EQ(7, response.install_date_days);
  EXPECT_TRUE(prefs.GetInt64(kPrefsInstallDateDays, &prefs_days));
  EXPECT_EQ(prefs_days, 42);

  // Note that elapsed_days is not necessarily divisible by 7 so check
  // that we round down correctly when populating kPrefsInstallDateDays.
  EXPECT_TRUE(prefs.Delete(kPrefsInstallDateDays));
  EXPECT_TRUE(InstallDateParseHelper("23", &prefs, &response));
  EXPECT_TRUE(response.update_exists);
  EXPECT_EQ(23, response.install_date_days);
  EXPECT_TRUE(prefs.GetInt64(kPrefsInstallDateDays, &prefs_days));
  EXPECT_EQ(prefs_days, 21);

  // Check that we correctly handle elapsed_days not being included in
  // the Omaha Response.
  EXPECT_TRUE(InstallDateParseHelper("", &prefs, &response));
  EXPECT_TRUE(response.update_exists);
  EXPECT_EQ(-1, response.install_date_days);

  EXPECT_TRUE(utils::RecursiveUnlinkDir(temp_dir));
}

TEST(OmahaRequestActionTest, GetInstallDate) {
  string temp_dir;
  Prefs prefs;
  EXPECT_TRUE(utils::MakeTempDirectory("GetInstallDate.XXXXXX",
                                       &temp_dir));
  prefs.Init(base::FilePath(temp_dir));

  // If there is no prefs and OOBE is not complete, we should not
  // report anything to Omaha.
  {
    FakeSystemState system_state;
    system_state.set_prefs(&prefs);
    EXPECT_EQ(OmahaRequestAction::GetInstallDate(&system_state), -1);
    EXPECT_FALSE(prefs.Exists(kPrefsInstallDateDays));
  }

  // If OOBE is complete and happened on a valid date (e.g. after Jan
  // 1 2007 0:00 PST), that date should be used and written to
  // prefs. However, first try with an invalid date and check we do
  // nothing.
  {
    FakeSystemState fake_system_state;
    fake_system_state.set_prefs(&prefs);

    Time oobe_date = Time::FromTimeT(42);  // Dec 31, 1969 16:00:42 PST.
    fake_system_state.fake_hardware()->SetIsOOBEComplete(oobe_date);
    EXPECT_EQ(OmahaRequestAction::GetInstallDate(&fake_system_state), -1);
    EXPECT_FALSE(prefs.Exists(kPrefsInstallDateDays));
  }

  // Then check with a valid date. The date Jan 20, 2007 0:00 PST
  // should yield an InstallDate of 14.
  {
    FakeSystemState fake_system_state;
    fake_system_state.set_prefs(&prefs);

    Time oobe_date = Time::FromTimeT(1169280000);  // Jan 20, 2007 0:00 PST.
    fake_system_state.fake_hardware()->SetIsOOBEComplete(oobe_date);
    EXPECT_EQ(OmahaRequestAction::GetInstallDate(&fake_system_state), 14);
    EXPECT_TRUE(prefs.Exists(kPrefsInstallDateDays));

    int64_t prefs_days;
    EXPECT_TRUE(prefs.GetInt64(kPrefsInstallDateDays, &prefs_days));
    EXPECT_EQ(prefs_days, 14);
  }

  // Now that we have a valid date in prefs, check that we keep using
  // that even if OOBE date reports something else. The date Jan 30,
  // 2007 0:00 PST should yield an InstallDate of 28... but since
  // there's a prefs file, we should still get 14.
  {
    FakeSystemState fake_system_state;
    fake_system_state.set_prefs(&prefs);

    Time oobe_date = Time::FromTimeT(1170144000);  // Jan 30, 2007 0:00 PST.
    fake_system_state.fake_hardware()->SetIsOOBEComplete(oobe_date);
    EXPECT_EQ(OmahaRequestAction::GetInstallDate(&fake_system_state), 14);

    int64_t prefs_days;
    EXPECT_TRUE(prefs.GetInt64(kPrefsInstallDateDays, &prefs_days));
    EXPECT_EQ(prefs_days, 14);

    // If we delete the prefs file, we should get 28 days.
    EXPECT_TRUE(prefs.Delete(kPrefsInstallDateDays));
    EXPECT_EQ(OmahaRequestAction::GetInstallDate(&fake_system_state), 28);
    EXPECT_TRUE(prefs.GetInt64(kPrefsInstallDateDays, &prefs_days));
    EXPECT_EQ(prefs_days, 28);
  }

  EXPECT_TRUE(utils::RecursiveUnlinkDir(temp_dir));
}

}  // namespace chromeos_update_engine