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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMEOS_ASH_COMPONENTS_SYSTEM_FAKE_STATISTICS_PROVIDER_H_
#define CHROMEOS_ASH_COMPONENTS_SYSTEM_FAKE_STATISTICS_PROVIDER_H_
#include <string>
#include <string_view>
#include "base/component_export.h"
#include "base/containers/flat_map.h"
#include "base/functional/callback.h"
#include "chromeos/ash/components/system/statistics_provider.h"
namespace ash::system {
// A fake StatisticsProvider implementation that is useful in tests.
class COMPONENT_EXPORT(CHROMEOS_ASH_COMPONENTS_SYSTEM) FakeStatisticsProvider
: public StatisticsProvider {
public:
FakeStatisticsProvider();
FakeStatisticsProvider(const FakeStatisticsProvider&) = delete;
FakeStatisticsProvider& operator=(const FakeStatisticsProvider&) = delete;
~FakeStatisticsProvider() override;
// StatisticsProvider implementation:
void ScheduleOnMachineStatisticsLoaded(base::OnceClosure callback) override;
void StartLoadingMachineStatistics(bool load_oem_manifest) override;
std::optional<std::string_view> GetMachineStatistic(
std::string_view name) override;
FlagValue GetMachineFlag(std::string_view name) override;
void Shutdown() override;
bool IsRunningOnVm() override;
bool IsCrosDebugMode() override;
VpdStatus GetVpdStatus() const override;
LoadingState GetLoadingState() const override;
void SetMachineStatistic(const std::string& key, const std::string& value);
void ClearMachineStatistic(std::string_view key);
void ClearAllMachineStatistics();
void SetMachineFlag(const std::string& key, bool value);
void ClearMachineFlag(std::string_view key);
void SetVpdStatus(VpdStatus new_status);
void SetLoadingState(LoadingState new_state);
private:
base::flat_map<std::string, std::string> machine_statistics_;
base::flat_map<std::string, bool> machine_flags_;
VpdStatus vpd_status_{VpdStatus::kUnknown};
LoadingState loading_state_{LoadingState::kNotStarted};
};
// A convenience subclass that automatically registers itself as the test
// StatisticsProvider during construction and cleans up at destruction.
class COMPONENT_EXPORT(CHROMEOS_ASH_COMPONENTS_SYSTEM)
ScopedFakeStatisticsProvider : public FakeStatisticsProvider {
public:
ScopedFakeStatisticsProvider();
ScopedFakeStatisticsProvider(const ScopedFakeStatisticsProvider&) = delete;
ScopedFakeStatisticsProvider& operator=(const ScopedFakeStatisticsProvider&) =
delete;
~ScopedFakeStatisticsProvider() override;
};
} // namespace ash::system
#endif // CHROMEOS_ASH_COMPONENTS_SYSTEM_FAKE_STATISTICS_PROVIDER_H_
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