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// Copyright 2018 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.h"
#include <string>
#include "base/metrics/field_trial.h"
#include "base/run_loop.h"
#include "base/test/scoped_task_environment.h"
#include "build/build_config.h"
#include "components/crash/core/common/crash_key.h"
#include "components/variations/hashing.h"
#include "components/variations/synthetic_trial_registry.h"
#include "components/variations/synthetic_trials_active_group_id_provider.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace variations {
namespace {
std::string GetVariationsCrashKey() {
return crash_reporter::GetCrashKeyValue("variations");
}
std::string GetNumExperimentsCrashKey() {
return crash_reporter::GetCrashKeyValue("num-experiments");
}
class VariationsCrashKeysTest : public ::testing::Test {
public:
VariationsCrashKeysTest() : field_trial_list_(nullptr) {
crash_reporter::ResetCrashKeysForTesting();
crash_reporter::InitializeCrashKeys();
}
~VariationsCrashKeysTest() override {
SyntheticTrialsActiveGroupIdProvider::GetInstance()->ResetForTesting();
ClearCrashKeysInstanceForTesting();
crash_reporter::ResetCrashKeysForTesting();
}
private:
base::test::ScopedTaskEnvironment task_environment_;
base::FieldTrialList field_trial_list_;
DISALLOW_COPY_AND_ASSIGN(VariationsCrashKeysTest);
};
} // namespace
// TODO(crbug.com/821162): Test fails on iOS. Re-enable after fixing.
#if defined(OS_IOS)
#define MAYBE_BasicFunctionality DISABLED_BasicFunctionality
#else
#define MAYBE_BasicFunctionality BasicFunctionality
#endif
TEST_F(VariationsCrashKeysTest, MAYBE_BasicFunctionality) {
SyntheticTrialRegistry registry;
registry.AddSyntheticTrialObserver(
SyntheticTrialsActiveGroupIdProvider::GetInstance());
// Start with 2 trials, one active and one not
base::FieldTrialList::CreateFieldTrial("Trial1", "Group1")->group();
base::FieldTrialList::CreateFieldTrial("Trial2", "Group2");
InitCrashKeys();
EXPECT_EQ("1", GetNumExperimentsCrashKey());
EXPECT_EQ("8e7abfb0-c16397b7,", GetVariationsCrashKey());
// Now, active Trial2.
EXPECT_EQ("Group2", base::FieldTrialList::FindFullName("Trial2"));
base::RunLoop().RunUntilIdle();
EXPECT_EQ("2", GetNumExperimentsCrashKey());
EXPECT_EQ("8e7abfb0-c16397b7,277f2a3d-d77354d0,", GetVariationsCrashKey());
// Add two synthetic trials and confirm that they show up in the list.
SyntheticTrialGroup synth_trial(HashName("Trial3"), HashName("Group3"));
registry.RegisterSyntheticFieldTrial(synth_trial);
EXPECT_EQ("3", GetNumExperimentsCrashKey());
EXPECT_EQ("8e7abfb0-c16397b7,277f2a3d-d77354d0,9f339c9d-746c2ad4,",
GetVariationsCrashKey());
// Add another regular trial.
base::FieldTrialList::CreateFieldTrial("Trial4", "Group4")->group();
base::RunLoop().RunUntilIdle();
EXPECT_EQ("4", GetNumExperimentsCrashKey());
EXPECT_EQ(
"8e7abfb0-c16397b7,277f2a3d-d77354d0,21710f4c-99b90b01,"
"9f339c9d-746c2ad4,",
GetVariationsCrashKey());
// Replace synthetic trial group and add one more.
SyntheticTrialGroup synth_trial2(HashName("Trial3"), HashName("Group3_A"));
registry.RegisterSyntheticFieldTrial(synth_trial2);
SyntheticTrialGroup synth_trial3(HashName("Trial4"), HashName("Group4"));
registry.RegisterSyntheticFieldTrial(synth_trial3);
EXPECT_EQ("5", GetNumExperimentsCrashKey());
EXPECT_EQ(
"8e7abfb0-c16397b7,277f2a3d-d77354d0,21710f4c-99b90b01,"
"9f339c9d-3250dddc,21710f4c-99b90b01,",
GetVariationsCrashKey());
}
} // namespace variations
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