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- // Copyright 2021 The Chromium 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 "components/variations/variations_crash_keys_chromeos.h"
- #include "base/base_paths.h"
- #include "base/files/file_util.h"
- #include "base/files/scoped_temp_dir.h"
- #include "base/metrics/field_trial.h"
- #include "base/run_loop.h"
- #include "base/test/scoped_path_override.h"
- #include "base/test/task_environment.h"
- #include "components/crash/core/common/crash_key.h"
- #include "components/variations/synthetic_trials_active_group_id_provider.h"
- #include "components/variations/variations_crash_keys.h"
- #include "testing/gtest/include/gtest/gtest.h"
- namespace variations {
- namespace {
- class VariationsCrashKeysChromeOsTest : public ::testing::Test {
- public:
- VariationsCrashKeysChromeOsTest() {
- crash_reporter::ResetCrashKeysForTesting();
- crash_reporter::InitializeCrashKeysForTesting();
- }
- VariationsCrashKeysChromeOsTest(const VariationsCrashKeysChromeOsTest&) =
- delete;
- VariationsCrashKeysChromeOsTest& operator=(
- const VariationsCrashKeysChromeOsTest&) = delete;
- ~VariationsCrashKeysChromeOsTest() override {
- SyntheticTrialsActiveGroupIdProvider::GetInstance()->ResetForTesting();
- ClearCrashKeysInstanceForTesting();
- crash_reporter::ResetCrashKeysForTesting();
- }
- protected:
- base::test::TaskEnvironment task_environment_;
- };
- TEST_F(VariationsCrashKeysChromeOsTest, WritesVariationsList) {
- // Override the homedir so that the class writes to a known location we can
- // check.
- base::ScopedTempDir dir;
- ASSERT_TRUE(dir.CreateUniqueTempDir());
- const base::FilePath& home_path = dir.GetPath();
- base::ScopedPathOverride home_override(base::DIR_HOME, home_path);
- base::FilePath variations_list_path =
- home_path.Append(".variations-list.txt");
- // Start with 2 trials, one active and one not
- base::FieldTrialList::CreateFieldTrial("Trial1", "Group1")->group();
- base::FieldTrialList::CreateFieldTrial("Trial2", "Group2");
- InitCrashKeys();
- base::RunLoop().RunUntilIdle();
- task_environment_.RunUntilIdle();
- ExperimentListInfo info = GetExperimentListInfo();
- EXPECT_EQ(1, info.num_experiments);
- EXPECT_EQ("8e7abfb0-c16397b7,", info.experiment_list);
- std::string contents;
- ASSERT_TRUE(base::ReadFileToString(variations_list_path, &contents));
- EXPECT_EQ(contents,
- "num-experiments=1\n"
- "variations=8e7abfb0-c16397b7,\n");
- // Now, activate Trial2.
- EXPECT_EQ("Group2", base::FieldTrialList::FindFullName("Trial2"));
- base::RunLoop().RunUntilIdle();
- task_environment_.RunUntilIdle();
- info = GetExperimentListInfo();
- EXPECT_EQ(2, info.num_experiments);
- EXPECT_EQ("8e7abfb0-c16397b7,277f2a3d-d77354d0,", info.experiment_list);
- ASSERT_TRUE(base::ReadFileToString(variations_list_path, &contents));
- EXPECT_EQ(contents,
- "num-experiments=2\n"
- "variations=8e7abfb0-c16397b7,277f2a3d-d77354d0,\n");
- }
- } // namespace
- } // namespace variations
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