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// Copyright 2023 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/metrics/persistent_synthetic_trial_observer.h"
#include "base/test/task_environment.h"
#include "components/metrics/persistent_system_profile.h"
#include "components/variations/hashing.h"
#include "components/variations/synthetic_trials.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace metrics {
class PersistentSyntheticTrialObserverTest : public testing::Test {
public:
constexpr static int32_t kAllocatorMemorySize = 1 << 20; // 1 MiB
PersistentSyntheticTrialObserverTest() = default;
~PersistentSyntheticTrialObserverTest() override = default;
void SetUp() override {
Test::SetUp();
memory_allocator_ = std::make_unique<base::LocalPersistentMemoryAllocator>(
kAllocatorMemorySize, 0, "");
GlobalPersistentSystemProfile::GetInstance()->RegisterPersistentAllocator(
memory_allocator_.get());
SystemProfileProto profile;
profile.set_client_uuid("id");
GlobalPersistentSystemProfile::GetInstance()->SetSystemProfile(profile,
false);
}
void TearDown() override {
GlobalPersistentSystemProfile::GetInstance()->DeregisterPersistentAllocator(
memory_allocator_.get());
Test::TearDown();
}
SystemProfileProto GetSystemProfile() {
SystemProfileProto profile;
GlobalPersistentSystemProfile::GetInstance()->GetSystemProfile(
*memory_allocator_, &profile);
return profile;
}
protected:
base::test::TaskEnvironment task_env_;
std::unique_ptr<base::PersistentMemoryAllocator> memory_allocator_;
};
TEST_F(PersistentSyntheticTrialObserverTest, AddRemoveTrials) {
PersistentSyntheticTrialObserver observer;
const variations::SyntheticTrialGroup kGroup1(
"Trial1", "Group1",
variations::SyntheticTrialAnnotationMode::kCurrentLog);
const variations::SyntheticTrialGroup kGroup2(
"Trial2", "Group2", variations::SyntheticTrialAnnotationMode::kNextLog);
const variations::SyntheticTrialGroup kGroup3(
"Trial2", "Group3",
variations::SyntheticTrialAnnotationMode::kCurrentLog);
observer.OnSyntheticTrialsChanged({kGroup1, kGroup2}, {}, {kGroup1, kGroup2});
SystemProfileProto profile = GetSystemProfile();
ASSERT_EQ(1, profile.field_trial_size());
EXPECT_EQ(variations::HashName("Trial1"), profile.field_trial(0).name_id());
EXPECT_EQ(variations::HashName("Group1"), profile.field_trial(0).group_id());
observer.OnSyntheticTrialsChanged({kGroup3}, {kGroup1}, {kGroup3});
profile = GetSystemProfile();
ASSERT_EQ(1, profile.field_trial_size());
EXPECT_EQ(variations::HashName("Trial2"), profile.field_trial(0).name_id());
EXPECT_EQ(variations::HashName("Group3"), profile.field_trial(0).group_id());
}
} // namespace metrics
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