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// Copyright 2015 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.
#ifndef COMPONENTS_MEMORY_PRESSURE_TEST_MEMORY_PRESSURE_CALCULATOR_H_
#define COMPONENTS_MEMORY_PRESSURE_TEST_MEMORY_PRESSURE_CALCULATOR_H_
#include "base/macros.h"
#include "components/memory_pressure/memory_pressure_calculator.h"
namespace memory_pressure {
#if defined(MEMORY_PRESSURE_IS_POLLING)
// A mock memory pressure calculator for unittesting.
class TestMemoryPressureCalculator : public MemoryPressureCalculator {
public:
// Defaults to no pressure.
TestMemoryPressureCalculator();
explicit TestMemoryPressureCalculator(MemoryPressureLevel level);
~TestMemoryPressureCalculator() override {}
// MemoryPressureCalculator implementation.
MemoryPressureLevel CalculateCurrentPressureLevel() override;
// Sets the mock calculator to return the given pressure level.
void SetLevel(MemoryPressureLevel level);
// Sets the mock calculator to return no pressure.
void SetNone();
// Sets the mock calculator to return moderate pressure.
void SetModerate();
// Sets the mock calculator to return critical pressure.
void SetCritical();
// Resets the call counter to 'CalculateCurrentPressureLevel'.
void ResetCalls();
// Returns the number of calls to 'CalculateCurrentPressureLevel'.
int calls() const { return calls_; }
private:
MemoryPressureLevel level_;
int calls_;
DISALLOW_COPY_AND_ASSIGN(TestMemoryPressureCalculator);
};
#endif // defined(MEMORY_PRESSURE_IS_POLLING)
} // namespace memory_pressure
#endif // COMPONENTS_MEMORY_PRESSURE_TEST_MEMORY_PRESSURE_CALCULATOR_H_
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