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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.
#ifndef CHROME_TEST_BASE_SCOPED_METRICS_SERVICE_FOR_SYNTHETIC_TRIALS_H_
#define CHROME_TEST_BASE_SCOPED_METRICS_SERVICE_FOR_SYNTHETIC_TRIALS_H_
#include <memory>
#include "base/feature_list.h"
#include "base/scoped_observation.h"
#include "chrome/test/base/scoped_testing_local_state.h"
#include "chrome/test/base/testing_browser_process.h"
#include "chrome/test/base/testing_profile_manager.h"
#include "components/metrics/metrics_service.h"
#include "components/metrics/metrics_service_client.h"
#include "components/metrics/metrics_state_manager.h"
#include "components/metrics/test/test_enabled_state_provider.h"
#include "components/metrics/test/test_metrics_service_client.h"
#include "components/prefs/pref_service.h"
#include "components/variations/active_field_trials.h"
#include "components/variations/synthetic_trial_registry.h"
#include "components/variations/synthetic_trials.h"
#include "components/variations/synthetic_trials_active_group_id_provider.h"
#include "components/variations/variations_crash_keys.h"
#include "components/variations/variations_test_utils.h"
#include "content/public/test/browser_task_environment.h"
class ScopedMetricsServiceForSyntheticTrials {
public:
// Sets up a `metrics::MetricsService` instance and makes it available in its
// scope via `testing_browser_process->metrics_service()`.
//
// This service only supports feature related to the usage of synthetic field
// trials.
//
// Requires:
// - the local state prefs to be usable from `testing_browser_process`
// - a task runner to be available (see //docs/threading_and_tasks_testing.md)
explicit ScopedMetricsServiceForSyntheticTrials(
TestingBrowserProcess* testing_browser_process);
~ScopedMetricsServiceForSyntheticTrials();
metrics::MetricsService* Get() { return metrics_service_.get(); }
private:
raw_ptr<TestingBrowserProcess> browser_process_ = nullptr;
metrics::TestEnabledStateProvider enabled_state_provider_{/*consent=*/true,
/*enabled=*/true};
variations::SyntheticTrialRegistry synthetic_trial_registry_;
base::ScopedObservation<variations::SyntheticTrialRegistry,
variations::SyntheticTrialObserver>
synthetic_trial_registry_observation_{
variations::SyntheticTrialsActiveGroupIdProvider::GetInstance()};
metrics::TestMetricsServiceClient metrics_service_client_;
std::unique_ptr<metrics::MetricsStateManager> metrics_state_manager_;
std::unique_ptr<metrics::MetricsService> metrics_service_;
};
#endif // CHROME_TEST_BASE_SCOPED_METRICS_SERVICE_FOR_SYNTHETIC_TRIALS_H_
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