| // Copyright 2024 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "components/variations/seed_reader_writer.h" |
| |
| #include "base/base64.h" |
| #include "base/files/file_util.h" |
| #include "base/files/scoped_temp_dir.h" |
| #include "base/test/metrics/histogram_tester.h" |
| #include "base/test/mock_entropy_provider.h" |
| #include "base/test/scoped_feature_list.h" |
| #include "base/test/task_environment.h" |
| #include "base/threading/thread.h" |
| #include "base/timer/mock_timer.h" |
| #include "base/version_info/channel.h" |
| #include "components/prefs/testing_pref_service.h" |
| #include "components/variations/pref_names.h" |
| #include "components/variations/variations_seed_store.h" |
| #include "components/variations/variations_test_utils.h" |
| #include "testing/gmock/include/gmock/gmock.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "third_party/zlib/google/compression_utils.h" |
| |
| namespace variations { |
| namespace { |
| |
| using ::testing::IsEmpty; |
| using ::testing::TestWithParam; |
| using ::testing::Values; |
| |
| const base::FilePath::CharType kSeedFilename[] = FILE_PATH_LITERAL("TestSeed"); |
| |
| // Used for clients that do not participate in SeedFiles experiment. |
| constexpr char kNoGroup[] = ""; |
| |
| // Compresses `data` using Gzip compression. |
| std::string Gzip(const std::string& data) { |
| std::string compressed; |
| CHECK(compression::GzipCompress(data, &compressed)); |
| return compressed; |
| } |
| |
| // Creates and serializes a test VariationsSeed. |
| std::string CreateVariationsSeed() { |
| VariationsSeed seed; |
| seed.add_study()->set_name("TestStudy"); |
| std::string serialized_seed; |
| seed.SerializeToString(&serialized_seed); |
| return serialized_seed; |
| } |
| |
| // Creates, serializes, and then Gzip compresses a test seed. |
| std::string CreateCompressedVariationsSeed() { |
| return Gzip(CreateVariationsSeed()); |
| } |
| |
| struct SeedReaderWriterTestParams { |
| using TupleT = |
| std::tuple<SeedFieldsPrefs, std::string_view, version_info::Channel>; |
| |
| SeedReaderWriterTestParams(SeedFieldsPrefs seed_fields_prefs, |
| std::string_view field_trial_group, |
| version_info::Channel channel) |
| : seed_fields_prefs(seed_fields_prefs), |
| field_trial_group(field_trial_group), |
| channel(channel) {} |
| |
| explicit SeedReaderWriterTestParams(const TupleT& t) |
| : SeedReaderWriterTestParams(std::get<0>(t), |
| std::get<1>(t), |
| std::get<2>(t)) {} |
| |
| SeedFieldsPrefs seed_fields_prefs; |
| std::string_view field_trial_group; |
| version_info::Channel channel; |
| }; |
| |
| struct ExpectedFieldTrialGroupTestParams { |
| using TupleT = std::tuple<SeedFieldsPrefs, version_info::Channel>; |
| |
| ExpectedFieldTrialGroupTestParams( |
| variations::SeedFieldsPrefs seed_fields_prefs, |
| version_info::Channel channel) |
| : seed_fields_prefs(seed_fields_prefs), channel(channel) {} |
| |
| explicit ExpectedFieldTrialGroupTestParams(const TupleT& t) |
| : ExpectedFieldTrialGroupTestParams(std::get<0>(t), std::get<1>(t)) {} |
| |
| variations::SeedFieldsPrefs seed_fields_prefs; |
| version_info::Channel channel; |
| }; |
| |
| class SeedReaderWriterTestBase { |
| public: |
| SeedReaderWriterTestBase() |
| : file_writer_thread_("SeedReaderWriter Test thread"), |
| entropy_providers_(std::make_unique<const MockEntropyProviders>( |
| MockEntropyProviders::Results{.low_entropy = |
| kAlwaysUseLastGroup})) { |
| VariationsSeedStore::RegisterPrefs(local_state_.registry()); |
| scoped_feature_list_.InitWithEmptyFeatureAndFieldTrialLists(); |
| file_writer_thread_.Start(); |
| CHECK(temp_dir_.CreateUniqueTempDir()); |
| temp_seed_file_path_ = temp_dir_.GetPath().Append(kSeedFilename); |
| } |
| ~SeedReaderWriterTestBase() = default; |
| |
| protected: |
| base::test::ScopedFeatureList scoped_feature_list_; |
| base::test::TaskEnvironment task_environment_; |
| base::FilePath temp_seed_file_path_; |
| base::Thread file_writer_thread_; |
| base::ScopedTempDir temp_dir_; |
| TestingPrefServiceSimple local_state_; |
| base::MockOneShotTimer timer_; |
| std::unique_ptr<const MockEntropyProviders> entropy_providers_; |
| }; |
| |
| class ExpectedFieldTrialGroupChannelsTest |
| : public SeedReaderWriterTestBase, |
| public TestWithParam<ExpectedFieldTrialGroupTestParams> {}; |
| |
| class ExpectedFieldTrialGroupAllChannelsTest |
| : public ExpectedFieldTrialGroupChannelsTest {}; |
| class ExpectedFieldTrialGroupPreStableTest |
| : public ExpectedFieldTrialGroupChannelsTest {}; |
| class ExpectedFieldTrialGroupStableTest |
| : public SeedReaderWriterTestBase, |
| public TestWithParam<SeedFieldsPrefs> {}; |
| class ExpectedFieldTrialGroupUnknownTest |
| : public SeedReaderWriterTestBase, |
| public TestWithParam<SeedFieldsPrefs> {}; |
| |
| INSTANTIATE_TEST_SUITE_P( |
| All, |
| ExpectedFieldTrialGroupAllChannelsTest, |
| ::testing::ConvertGenerator<ExpectedFieldTrialGroupTestParams::TupleT>( |
| ::testing::Combine(::testing::Values(kRegularSeedFieldsPrefs, |
| kSafeSeedFieldsPrefs), |
| ::testing::Values(version_info::Channel::UNKNOWN, |
| version_info::Channel::CANARY, |
| version_info::Channel::DEV, |
| version_info::Channel::BETA, |
| version_info::Channel::STABLE)))); |
| |
| // If empty seed file dir given, client is not assigned a group. |
| TEST_P(ExpectedFieldTrialGroupAllChannelsTest, NoSeedFileDir) { |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/base::FilePath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| EXPECT_THAT(base::FieldTrialList::FindFullName(kSeedFileTrial), IsEmpty()); |
| } |
| |
| // If no entropy provider given, client is not assigned a group. |
| TEST_P(ExpectedFieldTrialGroupAllChannelsTest, NoEntropyProvider) { |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| /*entropy_providers=*/nullptr, file_writer_thread_.task_runner()); |
| EXPECT_THAT(base::FieldTrialList::FindFullName(kSeedFileTrial), IsEmpty()); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P( |
| All, |
| ExpectedFieldTrialGroupPreStableTest, |
| ::testing::ConvertGenerator<ExpectedFieldTrialGroupTestParams::TupleT>( |
| ::testing::Combine(::testing::Values(kRegularSeedFieldsPrefs, |
| kSafeSeedFieldsPrefs), |
| ::testing::Values(version_info::Channel::CANARY, |
| version_info::Channel::DEV, |
| version_info::Channel::BETA)))); |
| |
| // If channel is pre-stable, client is assigned a group. |
| TEST_P(ExpectedFieldTrialGroupPreStableTest, PreStable) { |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| EXPECT_THAT(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| ::testing::AnyOf(kControlGroup, kSeedFilesGroup)); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P(All, |
| ExpectedFieldTrialGroupStableTest, |
| ::testing::Values(kRegularSeedFieldsPrefs, |
| kSafeSeedFieldsPrefs)); |
| |
| // If channel is stable, trial has been registered. |
| TEST_P(ExpectedFieldTrialGroupStableTest, Stable) { |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam(), version_info::Channel::STABLE, entropy_providers_.get(), |
| file_writer_thread_.task_runner()); |
| EXPECT_TRUE(base::FieldTrialList::TrialExists(kSeedFileTrial)); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P(All, |
| ExpectedFieldTrialGroupUnknownTest, |
| ::testing::Values(kRegularSeedFieldsPrefs, |
| kSafeSeedFieldsPrefs)); |
| |
| // If channel is unknown, client is not assigned a group. |
| TEST_P(ExpectedFieldTrialGroupUnknownTest, Unknown) { |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam(), version_info::Channel::UNKNOWN, entropy_providers_.get(), |
| file_writer_thread_.task_runner()); |
| EXPECT_THAT(base::FieldTrialList::FindFullName(kSeedFileTrial), IsEmpty()); |
| } |
| |
| class SeedReaderWriterGroupTest |
| : public SeedReaderWriterTestBase, |
| public TestWithParam<SeedReaderWriterTestParams> { |
| public: |
| SeedReaderWriterGroupTest() { |
| SetUpSeedFileTrial(std::string(GetParam().field_trial_group)); |
| } |
| }; |
| class SeedReaderWriterSeedFilesGroupTest : public SeedReaderWriterGroupTest {}; |
| class SeedReaderWriterLocalStateGroupsTest : public SeedReaderWriterGroupTest { |
| }; |
| |
| // Verifies clients in SeedFiles group write seeds to a seed file. |
| TEST_P(SeedReaderWriterSeedFilesGroupTest, WriteSeed) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| // Initialize seed_reader_writer with test thread and timer. |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| seed_reader_writer.SetTimerForTesting(&timer_); |
| |
| // Create and store seed. |
| const std::string seed_data = CreateVariationsSeed(); |
| const base::Time seed_date = base::Time::Now(); |
| const base::Time fetch_time = base::Time::Now(); |
| seed_reader_writer.StoreValidatedSeedInfo(ValidatedSeedInfo{ |
| .seed_data = seed_data, |
| .signature = "signature", |
| .milestone = 2, |
| .seed_date = seed_date, |
| .client_fetch_time = fetch_time, |
| .session_country_code = "us", |
| }); |
| |
| // Force write. |
| timer_.Fire(); |
| file_writer_thread_.FlushForTesting(); |
| |
| // Verify that a seed was written to a seed file. |
| const std::string compressed_seed = Gzip(seed_data); |
| const std::string base64_compressed_seed = |
| base::Base64Encode(compressed_seed); |
| std::string seed_file_data; |
| ASSERT_TRUE(base::ReadFileToString(temp_seed_file_path_, &seed_file_data)); |
| EXPECT_EQ(seed_file_data, compressed_seed); |
| |
| // Verify that the seed data is loaded correctly. |
| EXPECT_EQ(seed_reader_writer.GetSeedData().storage_format, |
| StoredSeed::StorageFormat::kCompressed); |
| EXPECT_EQ(seed_reader_writer.GetSeedData().data, compressed_seed); |
| EXPECT_EQ(seed_reader_writer.GetSeedData().signature, "signature"); |
| EXPECT_EQ(seed_reader_writer.GetSeedData().milestone, 2); |
| EXPECT_EQ(seed_reader_writer.GetSeedData().seed_date, seed_date); |
| EXPECT_EQ(seed_reader_writer.GetSeedData().client_fetch_time, fetch_time); |
| } |
| |
| // Verifies that a seed is cleared from a seed file for clients in the SeedFiles |
| // group. |
| TEST_P(SeedReaderWriterSeedFilesGroupTest, ClearSeed) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| // Create and store seed in a seed file. |
| const std::string compressed_seed = CreateCompressedVariationsSeed(); |
| ASSERT_TRUE(base::WriteFile(temp_seed_file_path_, compressed_seed)); |
| // Store other fields in local state prefs. |
| local_state_.SetString(GetParam().seed_fields_prefs.signature, "signature"); |
| local_state_.SetInteger(GetParam().seed_fields_prefs.milestone, 92); |
| local_state_.SetTime(GetParam().seed_fields_prefs.seed_date, |
| base::Time::Now()); |
| local_state_.SetString(GetParam().seed_fields_prefs.session_country_code, |
| "us"); |
| |
| // Initialize seed_reader_writer with test thread and timer. |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| seed_reader_writer.SetTimerForTesting(&timer_); |
| |
| // Verify seed was loaded correctly. |
| ASSERT_THAT(seed_reader_writer.GetSeedData().data, Not(IsEmpty())); |
| ASSERT_THAT(seed_reader_writer.GetSeedData().signature, Not(IsEmpty())); |
| ASSERT_NE(seed_reader_writer.GetSeedData().milestone, 0); |
| ASSERT_FALSE(seed_reader_writer.GetSeedData().seed_date.is_null()); |
| ASSERT_THAT(seed_reader_writer.GetSeedData().session_country_code, |
| Not(IsEmpty())); |
| |
| // Clear seed and force write. |
| seed_reader_writer.ClearSeedInfo(); |
| timer_.Fire(); |
| file_writer_thread_.FlushForTesting(); |
| |
| // Verify seed cleared correctly in a seed file. |
| // File should be empty. |
| std::string seed_file_data; |
| ASSERT_TRUE(base::ReadFileToString(temp_seed_file_path_, &seed_file_data)); |
| EXPECT_THAT(seed_file_data, IsEmpty()); |
| // Returned seed data should be empty. |
| EXPECT_THAT(seed_reader_writer.GetSeedData().data, IsEmpty()); |
| EXPECT_THAT(seed_reader_writer.GetSeedData().signature, IsEmpty()); |
| EXPECT_EQ(seed_reader_writer.GetSeedData().milestone, 0); |
| EXPECT_TRUE(seed_reader_writer.GetSeedData().seed_date.is_null()); |
| // Session country code is not cleared. |
| EXPECT_THAT(seed_reader_writer.GetSeedData().session_country_code, |
| Not(IsEmpty())); |
| // Local state prefs should be cleared. |
| EXPECT_THAT(local_state_.GetString(GetParam().seed_fields_prefs.seed), |
| IsEmpty()); |
| EXPECT_THAT(local_state_.GetString(GetParam().seed_fields_prefs.signature), |
| IsEmpty()); |
| EXPECT_EQ(local_state_.GetInteger(GetParam().seed_fields_prefs.milestone), 0); |
| EXPECT_EQ(local_state_.GetTime(GetParam().seed_fields_prefs.seed_date), |
| base::Time()); |
| // Session country code is not cleared. |
| EXPECT_THAT( |
| local_state_.GetString(GetParam().seed_fields_prefs.session_country_code), |
| Not(IsEmpty())); |
| } |
| |
| // Verifies that session country code is cleared from a seed file for clients in |
| // the SeedFiles group. |
| TEST_P(SeedReaderWriterSeedFilesGroupTest, ClearSessionCountryCode) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| local_state_.SetString(GetParam().seed_fields_prefs.session_country_code, |
| "us"); |
| // Initialize seed_reader_writer with test thread and timer. |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| |
| ASSERT_THAT(seed_reader_writer.GetSeedData().session_country_code, |
| Not(IsEmpty())); |
| |
| seed_reader_writer.ClearSessionCountry(); |
| |
| // Session country code is cleared. |
| EXPECT_THAT(seed_reader_writer.GetSeedData().session_country_code, IsEmpty()); |
| // Local state pref should be cleared. |
| EXPECT_THAT( |
| local_state_.GetString(GetParam().seed_fields_prefs.session_country_code), |
| IsEmpty()); |
| } |
| |
| |
| // Verifies clients in SeedFiles group read seeds from the seed file. |
| TEST_P(SeedReaderWriterSeedFilesGroupTest, ReadSeedFileBasedSeed) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| // Create and store seed. |
| const std::string compressed_seed = CreateCompressedVariationsSeed(); |
| ASSERT_TRUE(base::WriteFile(temp_seed_file_path_, compressed_seed)); |
| const std::string_view seed_data_field = GetParam().seed_fields_prefs.seed; |
| local_state_.SetString(seed_data_field, "unused seed"); |
| |
| // Initialize seed_reader_writer with test thread. |
| base::HistogramTester histogram_tester; |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| |
| // Ensure seed data loaded from seed file. |
| ASSERT_EQ(StoredSeed::StorageFormat::kCompressed, |
| seed_reader_writer.GetSeedData().storage_format); |
| ASSERT_EQ(compressed_seed, seed_reader_writer.GetSeedData().data); |
| histogram_tester.ExpectUniqueSample( |
| base::StrCat( |
| {"Variations.SeedFileRead.", |
| base::Contains(seed_data_field, "Safe") ? "Safe" : "Latest"}), |
| /*sample=*/1, /*expected_bucket_count=*/1); |
| } |
| |
| // Verifies clients in SeedFiles group do not crash if reading empty seed file. |
| TEST_P(SeedReaderWriterSeedFilesGroupTest, ReadEmptySeedFile) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| // Create and store seed. |
| const std::string compressed_seed = CreateCompressedVariationsSeed(); |
| ASSERT_TRUE(base::WriteFile(temp_seed_file_path_, "")); |
| const std::string_view seed_data_field = GetParam().seed_fields_prefs.seed; |
| local_state_.SetString(seed_data_field, "unused seed"); |
| |
| // Initialize seed_reader_writer with test thread. |
| base::HistogramTester histogram_tester; |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| |
| histogram_tester.ExpectUniqueSample( |
| base::StrCat( |
| {"Variations.SeedFileRead.", |
| base::Contains(seed_data_field, "Safe") ? "Safe" : "Latest"}), |
| /*sample=*/1, /*expected_bucket_count=*/1); |
| |
| // Ensure seed data loaded from seed file. |
| ASSERT_EQ(StoredSeed::StorageFormat::kCompressed, |
| seed_reader_writer.GetSeedData().storage_format); |
| ASSERT_EQ("", seed_reader_writer.GetSeedData().data); |
| } |
| |
| // Verifies clients in SeedFiles group read seeds from local state prefs if no |
| // seed file found. |
| TEST_P(SeedReaderWriterSeedFilesGroupTest, ReadMissingSeedFile) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| // Create and store seed. |
| const std::string compressed_seed = CreateCompressedVariationsSeed(); |
| const std::string_view seed_data_field = GetParam().seed_fields_prefs.seed; |
| local_state_.SetString(seed_data_field, base::Base64Encode(compressed_seed)); |
| |
| // Initialize seed_reader_writer with test thread. |
| base::HistogramTester histogram_tester; |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| |
| // Ensure read failed due to seed file not existing. |
| histogram_tester.ExpectUniqueSample( |
| base::StrCat( |
| {"Variations.SeedFileRead.", |
| base::Contains(seed_data_field, "Safe") ? "Safe" : "Latest"}), |
| /*sample=*/0, /*expected_bucket_count=*/1); |
| |
| // Ensure seed data from local state prefs is loaded and decoded. |
| ASSERT_EQ(StoredSeed::StorageFormat::kCompressed, |
| seed_reader_writer.GetSeedData().storage_format); |
| ASSERT_EQ(compressed_seed, seed_reader_writer.GetSeedData().data); |
| } |
| |
| TEST_P(SeedReaderWriterSeedFilesGroupTest, ReadMissingSeedFileEmptyLocalState) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| // Create and store seed. |
| const std::string_view seed_data_field = GetParam().seed_fields_prefs.seed; |
| local_state_.ClearPref(seed_data_field); |
| |
| // Initialize seed_reader_writer with test thread. |
| base::HistogramTester histogram_tester; |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| |
| // Ensure read failed due to seed file not existing. |
| histogram_tester.ExpectUniqueSample( |
| base::StrCat( |
| {"Variations.SeedFileRead.", |
| base::Contains(seed_data_field, "Safe") ? "Safe" : "Latest"}), |
| /*sample=*/0, /*expected_bucket_count=*/1); |
| |
| // Ensure seed data from local state prefs is loaded and decoded. |
| EXPECT_EQ(StoredSeed::StorageFormat::kCompressed, |
| seed_reader_writer.GetSeedData().storage_format); |
| EXPECT_THAT(seed_reader_writer.GetSeedData().data, IsEmpty()); |
| } |
| |
| TEST_P(SeedReaderWriterSeedFilesGroupTest, |
| ReadMissingSeedFileEmptyCorruptGzip) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| // Create and store seed. |
| std::string compressed_seed = CreateCompressedVariationsSeed(); |
| const std::string_view seed_data_field = GetParam().seed_fields_prefs.seed; |
| compressed_seed[5] ^= 0xFF; |
| compressed_seed[10] ^= 0xFF; |
| local_state_.SetString(seed_data_field, base::Base64Encode(compressed_seed)); |
| |
| // Initialize seed_reader_writer with test thread. |
| base::HistogramTester histogram_tester; |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| |
| // Ensure read failed due to seed file not existing. |
| histogram_tester.ExpectUniqueSample( |
| base::StrCat( |
| {"Variations.SeedFileRead.", |
| base::Contains(seed_data_field, "Safe") ? "Safe" : "Latest"}), |
| /*sample=*/0, /*expected_bucket_count=*/1); |
| |
| // Ensure seed data from local state prefs is loaded and decoded. |
| EXPECT_EQ(StoredSeed::StorageFormat::kCompressed, |
| seed_reader_writer.GetSeedData().storage_format); |
| EXPECT_THAT(seed_reader_writer.GetSeedData().data, IsEmpty()); |
| } |
| |
| TEST_P(SeedReaderWriterSeedFilesGroupTest, |
| ReadMissingSeedFileEmptyInvalidBase64) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| // Create and store seed. |
| const std::string_view seed_data_field = GetParam().seed_fields_prefs.seed; |
| local_state_.SetString(seed_data_field, "invalid base64"); |
| |
| // Initialize seed_reader_writer with test thread. |
| base::HistogramTester histogram_tester; |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| |
| // Ensure read failed due to seed file not existing. |
| histogram_tester.ExpectUniqueSample( |
| base::StrCat( |
| {"Variations.SeedFileRead.", |
| base::Contains(seed_data_field, "Safe") ? "Safe" : "Latest"}), |
| /*sample=*/0, /*expected_bucket_count=*/1); |
| |
| // Ensure seed data from local state prefs is loaded and decoded. |
| EXPECT_EQ(StoredSeed::StorageFormat::kCompressed, |
| seed_reader_writer.GetSeedData().storage_format); |
| EXPECT_THAT(seed_reader_writer.GetSeedData().data, IsEmpty()); |
| } |
| |
| TEST_P(SeedReaderWriterSeedFilesGroupTest, ReadSeedData) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| seed_reader_writer.SetTimerForTesting(&timer_); |
| |
| // Create and store seed. |
| const std::string seed_data = CreateVariationsSeed(); |
| const std::string signature = "completely valid signature"; |
| seed_reader_writer.StoreValidatedSeedInfo(ValidatedSeedInfo{ |
| .seed_data = seed_data, |
| .signature = signature, |
| }); |
| |
| std::string read_seed_data; |
| std::string base64_seed_signature; |
| LoadSeedResult result = |
| seed_reader_writer.ReadSeedData(&read_seed_data, &base64_seed_signature); |
| EXPECT_EQ(result, LoadSeedResult::kSuccess); |
| EXPECT_EQ(read_seed_data, seed_data); |
| EXPECT_EQ(base64_seed_signature, signature); |
| } |
| |
| TEST_P(SeedReaderWriterSeedFilesGroupTest, ReadSeedDataCorruptGzip) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| seed_reader_writer.SetTimerForTesting(&timer_); |
| |
| // Create and store seed. |
| std::string compressed_seed = CreateCompressedVariationsSeed(); |
| compressed_seed[5] ^= 0xFF; |
| compressed_seed[10] ^= 0xFF; |
| seed_reader_writer.StoreRawSeedForTesting(compressed_seed); |
| |
| std::string seed_data; |
| std::string base64_seed_signature; |
| LoadSeedResult result = |
| seed_reader_writer.ReadSeedData(&seed_data, &base64_seed_signature); |
| EXPECT_EQ(result, LoadSeedResult::kCorruptGzip); |
| } |
| |
| TEST_P(SeedReaderWriterSeedFilesGroupTest, ReadSeedDataExceedsSizeLimit) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| seed_reader_writer.SetTimerForTesting(&timer_); |
| |
| // 51MiB of uncompressed data to exceed 50MiB limit. |
| seed_reader_writer.StoreValidatedSeedInfo(ValidatedSeedInfo{ |
| .seed_data = std::string(51 * 1024 * 1024, 'A'), |
| .signature = "ignored signature", |
| }); |
| |
| std::string seed_data; |
| std::string base64_seed_signature; |
| LoadSeedResult result = |
| seed_reader_writer.ReadSeedData(&seed_data, &base64_seed_signature); |
| EXPECT_EQ(result, LoadSeedResult::kExceedsUncompressedSizeLimit); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P( |
| All, |
| SeedReaderWriterSeedFilesGroupTest, |
| ::testing::ConvertGenerator<SeedReaderWriterTestParams::TupleT>( |
| ::testing::Combine(::testing::Values(kRegularSeedFieldsPrefs, |
| kSafeSeedFieldsPrefs), |
| ::testing::Values(kSeedFilesGroup), |
| ::testing::Values(version_info::Channel::CANARY, |
| version_info::Channel::DEV, |
| version_info::Channel::BETA)))); |
| |
| // Verifies clients using local state to store seeds write seeds to Local State. |
| TEST_P(SeedReaderWriterLocalStateGroupsTest, WriteSeed) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| // Initialize seed_reader_writer with test thread and timer. |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| seed_reader_writer.SetTimerForTesting(&timer_); |
| |
| // Create and store seed. |
| const std::string seed_data = CreateVariationsSeed(); |
| const base::Time seed_date = base::Time::Now(); |
| const base::Time fetch_time = base::Time::Now(); |
| seed_reader_writer.StoreValidatedSeedInfo(ValidatedSeedInfo{ |
| .seed_data = seed_data, |
| .signature = "signature", |
| .milestone = 2, |
| .seed_date = seed_date, |
| .client_fetch_time = fetch_time, |
| .session_country_code = "us", |
| }); |
| |
| // Ensure there's no pending write. |
| EXPECT_FALSE(timer_.IsRunning()); |
| |
| // Verify seed stored correctly, should only be found in Local State prefs. |
| EXPECT_FALSE(base::PathExists(temp_seed_file_path_)); |
| const std::string compressed_seed = Gzip(seed_data); |
| const std::string base64_compressed_seed = |
| base::Base64Encode(compressed_seed); |
| EXPECT_EQ(local_state_.GetString(GetParam().seed_fields_prefs.seed), |
| base64_compressed_seed); |
| EXPECT_EQ(local_state_.GetString(GetParam().seed_fields_prefs.signature), |
| "signature"); |
| EXPECT_EQ(local_state_.GetInteger(GetParam().seed_fields_prefs.milestone), 2); |
| EXPECT_EQ(local_state_.GetTime(GetParam().seed_fields_prefs.seed_date), |
| seed_date); |
| EXPECT_EQ(local_state_.GetTime(GetParam().seed_fields_prefs.client_fetch_time), |
| fetch_time); |
| } |
| |
| // Verifies that a seed is cleared from Local State and that seed file is |
| // deleted if present for clients using local state to store seeds. |
| TEST_P(SeedReaderWriterLocalStateGroupsTest, ClearSeed) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| // Initialize seed_reader_writer with test thread and timer. |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| |
| // Create and store seed. |
| const std::string compressed_seed = CreateCompressedVariationsSeed(); |
| ASSERT_TRUE(base::WriteFile(temp_seed_file_path_, compressed_seed)); |
| local_state_.SetString(GetParam().seed_fields_prefs.seed, |
| base::Base64Encode(compressed_seed)); |
| local_state_.SetString(GetParam().seed_fields_prefs.signature, "signature"); |
| local_state_.SetInteger(GetParam().seed_fields_prefs.milestone, 92); |
| local_state_.SetTime(GetParam().seed_fields_prefs.seed_date, |
| base::Time::Now()); |
| local_state_.SetString(GetParam().seed_fields_prefs.session_country_code, |
| "us"); |
| |
| // Clear seed and force file delete. |
| seed_reader_writer.ClearSeedInfo(); |
| file_writer_thread_.FlushForTesting(); |
| |
| // Returned seed data should be empty. |
| EXPECT_THAT(seed_reader_writer.GetSeedData().data, IsEmpty()); |
| EXPECT_THAT(seed_reader_writer.GetSeedData().signature, IsEmpty()); |
| EXPECT_EQ(seed_reader_writer.GetSeedData().milestone, 0); |
| EXPECT_TRUE(seed_reader_writer.GetSeedData().seed_date.is_null()); |
| // Session country code is not cleared. |
| EXPECT_THAT(seed_reader_writer.GetSeedData().session_country_code, |
| Not(IsEmpty())); |
| |
| // Verify seed cleared correctly in Local State prefs and that seed file is |
| // deleted. |
| EXPECT_THAT(local_state_.GetString(GetParam().seed_fields_prefs.seed), |
| IsEmpty()); |
| EXPECT_THAT(local_state_.GetString(GetParam().seed_fields_prefs.signature), |
| IsEmpty()); |
| EXPECT_EQ(local_state_.GetInteger(GetParam().seed_fields_prefs.milestone), 0); |
| EXPECT_EQ(local_state_.GetTime(GetParam().seed_fields_prefs.seed_date), |
| base::Time()); |
| EXPECT_EQ( |
| local_state_.GetTime(GetParam().seed_fields_prefs.client_fetch_time), |
| base::Time()); |
| // Session country code is not cleared. |
| EXPECT_THAT( |
| local_state_.GetString(GetParam().seed_fields_prefs.session_country_code), |
| Not(IsEmpty())); |
| EXPECT_FALSE(base::PathExists(temp_seed_file_path_)); |
| } |
| |
| // Verifies that session country code is cleared from Local State for clients |
| // using local state to store seeds. |
| TEST_P(SeedReaderWriterLocalStateGroupsTest, ClearSessionCountryCode) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| // Initialize seed_reader_writer with test thread and timer. |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| |
| // Create and store seed. |
| local_state_.SetString(GetParam().seed_fields_prefs.session_country_code, |
| "us"); |
| |
| // Clear seed and force file delete. |
| seed_reader_writer.ClearSessionCountry(); |
| file_writer_thread_.FlushForTesting(); |
| |
| EXPECT_THAT(seed_reader_writer.GetSeedData().session_country_code, IsEmpty()); |
| EXPECT_THAT( |
| local_state_.GetString(GetParam().seed_fields_prefs.session_country_code), |
| IsEmpty()); |
| } |
| |
| // Verifies clients using local state to store seeds read seeds from local |
| // state. |
| TEST_P(SeedReaderWriterLocalStateGroupsTest, ReadLocalStateBasedSeed) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| // Create and store seed. |
| ASSERT_TRUE(base::WriteFile(temp_seed_file_path_, "unused seed")); |
| const std::string_view seed_data_field = GetParam().seed_fields_prefs.seed; |
| local_state_.SetString(seed_data_field, |
| base::Base64Encode(CreateCompressedVariationsSeed())); |
| |
| // Initialize seed_reader_writer with test thread. |
| base::HistogramTester histogram_tester; |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| |
| // Ensure seed data loaded from prefs, not seed file. |
| ASSERT_EQ(StoredSeed::StorageFormat::kCompressedAndBase64Encoded, |
| seed_reader_writer.GetSeedData().storage_format); |
| ASSERT_EQ(local_state_.GetString(GetParam().seed_fields_prefs.seed), |
| seed_reader_writer.GetSeedData().data); |
| histogram_tester.ExpectTotalCount( |
| base::StrCat( |
| {"Variations.SeedFileRead.", |
| base::Contains(seed_data_field, "Safe") ? "Safe" : "Latest"}), |
| /*expected_count=*/0); |
| } |
| |
| // Verifies that writing seeds with an empty path for `seed_file_dir` does not |
| // cause a crash. |
| TEST_P(SeedReaderWriterLocalStateGroupsTest, EmptySeedFilePathIsValid) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| // Initialize seed_reader_writer with test thread and timer and an empty file |
| // path. |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, |
| /*seed_file_dir=*/base::FilePath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| seed_reader_writer.SetTimerForTesting(&timer_); |
| |
| // Create and store seed. |
| const std::string seed_data = CreateVariationsSeed(); |
| const base::Time seed_date = base::Time::Now(); |
| const base::Time fetch_time = base::Time::Now(); |
| seed_reader_writer.StoreValidatedSeedInfo(ValidatedSeedInfo{ |
| .seed_data = seed_data, |
| .signature = "signature", |
| .milestone = 2, |
| .seed_date = seed_date, |
| .client_fetch_time = fetch_time, |
| }); |
| |
| // Ensure there's no pending write. |
| EXPECT_FALSE(timer_.IsRunning()); |
| |
| // Verify seed stored correctly, should only be found in Local State prefs. |
| const std::string base64_compressed_seed = |
| base::Base64Encode(Gzip(seed_data)); |
| EXPECT_EQ(local_state_.GetString(GetParam().seed_fields_prefs.seed), |
| base64_compressed_seed); |
| EXPECT_EQ(local_state_.GetString(GetParam().seed_fields_prefs.signature), |
| "signature"); |
| EXPECT_EQ(local_state_.GetInteger(GetParam().seed_fields_prefs.milestone), 2); |
| EXPECT_EQ(local_state_.GetTime(GetParam().seed_fields_prefs.seed_date), |
| seed_date); |
| EXPECT_EQ(local_state_.GetTime(GetParam().seed_fields_prefs.client_fetch_time), |
| fetch_time); |
| } |
| |
| TEST_P(SeedReaderWriterLocalStateGroupsTest, ReadSeedData) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| // Initialize seed_reader_writer with test thread and timer and an empty file |
| // path. |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, |
| /*seed_file_dir=*/base::FilePath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| seed_reader_writer.SetTimerForTesting(&timer_); |
| |
| // Create and store seed. |
| const std::string seed_data = CreateVariationsSeed(); |
| seed_reader_writer.StoreValidatedSeedInfo(ValidatedSeedInfo{ |
| .seed_data = seed_data, |
| .signature = "seed signature", |
| }); |
| |
| std::string read_seed_data; |
| std::string base64_seed_signature; |
| LoadSeedResult result = |
| seed_reader_writer.ReadSeedData(&read_seed_data, &base64_seed_signature); |
| EXPECT_EQ(result, LoadSeedResult::kSuccess); |
| EXPECT_EQ(read_seed_data, seed_data); |
| EXPECT_EQ(base64_seed_signature, "seed signature"); |
| } |
| |
| TEST_P(SeedReaderWriterLocalStateGroupsTest, ReadSeedDataCorruptBase64) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| // Initialize seed_reader_writer with test thread and timer and an empty file |
| // path. |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, |
| /*seed_file_dir=*/base::FilePath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| seed_reader_writer.SetTimerForTesting(&timer_); |
| |
| seed_reader_writer.StoreRawSeedForTesting("invalid base64"); |
| |
| std::string seed_data; |
| std::string base64_seed_signature; |
| LoadSeedResult result = |
| seed_reader_writer.ReadSeedData(&seed_data, &base64_seed_signature); |
| EXPECT_EQ(result, LoadSeedResult::kCorruptBase64); |
| } |
| |
| TEST_P(SeedReaderWriterLocalStateGroupsTest, ReadSeedDataCorruptGzip) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| // Initialize seed_reader_writer with test thread and timer and an empty file |
| // path. |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, |
| /*seed_file_dir=*/base::FilePath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| seed_reader_writer.SetTimerForTesting(&timer_); |
| |
| std::string compressed_seed = CreateCompressedVariationsSeed(); |
| compressed_seed[5] ^= 0xFF; |
| compressed_seed[10] ^= 0xFF; |
| const std::string base64_compressed_seed = |
| base::Base64Encode(compressed_seed); |
| seed_reader_writer.StoreRawSeedForTesting(base64_compressed_seed); |
| |
| std::string seed_data; |
| std::string base64_seed_signature; |
| LoadSeedResult result = |
| seed_reader_writer.ReadSeedData(&seed_data, &base64_seed_signature); |
| EXPECT_EQ(result, LoadSeedResult::kCorruptGzip); |
| } |
| |
| TEST_P(SeedReaderWriterLocalStateGroupsTest, ReadSeedDataExceedsSizeLimit) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| // Initialize seed_reader_writer with test thread and timer and an empty file |
| // path. |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, |
| /*seed_file_dir=*/base::FilePath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| seed_reader_writer.SetTimerForTesting(&timer_); |
| |
| const std::string base64_compressed_seed = |
| base::Base64Encode(Gzip(std::string(51 * 1024 * 1024, 'A'))); |
| seed_reader_writer.StoreRawSeedForTesting(base64_compressed_seed); |
| |
| std::string seed_data; |
| std::string base64_seed_signature; |
| LoadSeedResult result = |
| seed_reader_writer.ReadSeedData(&seed_data, &base64_seed_signature); |
| EXPECT_EQ(result, LoadSeedResult::kExceedsUncompressedSizeLimit); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P( |
| NoGroup, |
| SeedReaderWriterLocalStateGroupsTest, |
| ::testing::ConvertGenerator<SeedReaderWriterTestParams::TupleT>( |
| ::testing::Combine(::testing::Values(kRegularSeedFieldsPrefs, |
| kSafeSeedFieldsPrefs), |
| ::testing::Values(kNoGroup), |
| ::testing::Values(version_info::Channel::UNKNOWN)))); |
| |
| INSTANTIATE_TEST_SUITE_P( |
| ControlAndDefaultGroup, |
| SeedReaderWriterLocalStateGroupsTest, |
| ::testing::ConvertGenerator<SeedReaderWriterTestParams::TupleT>( |
| ::testing::Combine(::testing::Values(kRegularSeedFieldsPrefs, |
| kSafeSeedFieldsPrefs), |
| ::testing::Values(kControlGroup, kDefaultGroup), |
| ::testing::Values(version_info::Channel::UNKNOWN, |
| version_info::Channel::CANARY, |
| version_info::Channel::DEV, |
| version_info::Channel::BETA, |
| version_info::Channel::STABLE)))); |
| |
| class SeedReaderWriterAllGroupsTest : public SeedReaderWriterGroupTest {}; |
| |
| INSTANTIATE_TEST_SUITE_P( |
| AllGroups, |
| SeedReaderWriterAllGroupsTest, |
| ::testing::ConvertGenerator<SeedReaderWriterTestParams::TupleT>( |
| ::testing::Combine( |
| ::testing::Values(kRegularSeedFieldsPrefs, kSafeSeedFieldsPrefs), |
| ::testing::Values(kControlGroup, kDefaultGroup, kSeedFilesGroup), |
| ::testing::Values(version_info::Channel::UNKNOWN, |
| version_info::Channel::CANARY, |
| version_info::Channel::DEV, |
| version_info::Channel::BETA, |
| version_info::Channel::STABLE)))); |
| |
| TEST_P(SeedReaderWriterAllGroupsTest, ReadSeedDataEmptySeedData) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| // Initialize seed_reader_writer with test thread and timer. |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| seed_reader_writer.SetTimerForTesting(&timer_); |
| |
| // Create and store seed. |
| seed_reader_writer.StoreValidatedSeedInfo(ValidatedSeedInfo{ |
| .seed_data = "", |
| .signature = "ignored signature", |
| }); |
| ASSERT_THAT(seed_reader_writer.GetSeedData().data, IsEmpty()); |
| |
| std::string seed_data; |
| std::string base64_seed_signature; |
| LoadSeedResult result = |
| seed_reader_writer.ReadSeedData(&seed_data, &base64_seed_signature); |
| EXPECT_EQ(result, LoadSeedResult::kEmpty); |
| } |
| |
| TEST_P(SeedReaderWriterAllGroupsTest, ReadSeedDataSentinel) { |
| ASSERT_EQ(base::FieldTrialList::FindFullName(kSeedFileTrial), |
| GetParam().field_trial_group); |
| // Initialize seed_reader_writer with test thread and timer. |
| SeedReaderWriter seed_reader_writer( |
| &local_state_, /*seed_file_dir=*/temp_dir_.GetPath(), kSeedFilename, |
| GetParam().seed_fields_prefs, GetParam().channel, |
| entropy_providers_.get(), file_writer_thread_.task_runner()); |
| seed_reader_writer.SetTimerForTesting(&timer_); |
| |
| // Create and store seed. |
| seed_reader_writer.StoreValidatedSeedInfo(ValidatedSeedInfo{ |
| .seed_data = kIdenticalToSafeSeedSentinel, |
| .signature = "ignored signature", |
| }); |
| |
| std::string seed_data; |
| std::string base64_seed_signature; |
| LoadSeedResult result = |
| seed_reader_writer.ReadSeedData(&seed_data, &base64_seed_signature); |
| EXPECT_EQ(result, LoadSeedResult::kSuccess); |
| EXPECT_EQ(seed_data, kIdenticalToSafeSeedSentinel); |
| } |
| |
| } // namespace |
| } // namespace variations |
