/mnt/nas/libepaper/include/epaper/hal/mock_pin.hpp

Mock digital output pin for testing.

Mock digital output pin for testing.Records all write operations for verification in tests. Satisfies hal::DigitalOutput concept without requiring hardware.

MockOutputPin pin;
pin.write(true);
assert(pin.last_level() == true);
assert(pin.write_count() == 1);

#pragma once
 
#include "epaper/hal/gpio.hpp"
#include <cstddef>
 
namespace epaper::hal {
 
class MockOutputPin {
public:
  auto write(bool level) -> void {
    last_level_ = level;
    write_count_++;
  }
 
  [[nodiscard]] auto last_level() const -> bool { return last_level_; }
 
  [[nodiscard]] auto write_count() const -> std::size_t { return write_count_; }
 
  auto reset() -> void {
    write_count_ = 0;
    last_level_ = false;
  }
 
private:
  bool last_level_ = false;
  std::size_t write_count_ = 0;
};
 
static_assert(DigitalOutput<MockOutputPin>, "MockOutputPin must satisfy DigitalOutput concept");
 
class MockInputPin {
public:
  auto read() -> bool {
    read_count_++;
    return level_;
  }
 
  auto set_level(bool level) -> void { level_ = level; }
 
  [[nodiscard]] auto read_count() const -> std::size_t { return read_count_; }
 
  auto reset() -> void {
    read_count_ = 0;
    level_ = false;
  }
 
private:
  bool level_ = false;
  std::size_t read_count_ = 0;
};
 
static_assert(DigitalInput<MockInputPin>, "MockInputPin must satisfy DigitalInput concept");
 
} // namespace epaper::hal