Partial implementation of a mock peripheral for SJSU. This was used in test to verify if using a hand written mock was faster than FakeIt (24 seconds for small test). It was, but only by 1s.

MockGpio.hpp

namespace sjsu 
{
/// Mock Gpio for usage in testing
class MockGpio : public sjsu::Gpio
{
 public:
  // Return values
  std::deque<bool> read_;
  std::deque<std::variant<Direction, State, std::pair<InterruptCallback, Edge>>>
      captures_;

  void Reset()
  {
    read_.clear();
    captures_.clear();
  }

  void ModuleInitialize() override {}
  void ModuleEnable(bool = true) override {}

  void SetDirection(Direction dir) override
  {
    captures_.push_back(dir);
  }

  void Set(State state) override
  {
    captures_.push_back(state);
  }

  void Toggle() override {}

  bool Read() override
  {
    return PopAndReturn(read_);
  }

  sjsu::Pin & GetPin() override
  {
    return GetInactive<sjsu::Pin>();
  }

  void AttachInterrupt(InterruptCallback callback, Edge edge) override
  {
    captures_.push_back(std::make_pair(callback, edge));
  }

  void DetachInterrupt() override {}
};
}  // namespace sjsu