cpp-shared-random-generator/include/random/mock/mock_device.h

//
//  mock_device.h
//  shared_random_generator
//
//  Created by Sam Jaffe on 3/25/23.
//  Copyright © 2023 Sam Jaffe. All rights reserved.
//

#pragma once

#include <sstream>

#include <gmock/gmock.h>
#include <random/device.h>
#include <random/distribution.h>

#ifndef CONCAT
#define CONCAT2(A, B) A##B
#define CONCAT(A, B) CONCAT2(A, B)
#endif

#define MOCK_APPLY_DEVICE(T)                                                   \
  T apply(Distribution<T> const & dist) final {                                \
    std::stringstream ss;                                                      \
    ss << dist;                                                                \
    return CONCAT(apply_, T)(ss.str());                                        \
  }                                                                            \
  MOCK_METHOD1(CONCAT(apply_, T), T(std::string const &))

namespace engine::random {
class MockDevice : public Device {
public:
  result_type operator()() final { return apply_uint32_t("?"); }
  MOCK_APPLY_DEVICE(size_t);
  MOCK_APPLY_DEVICE(double);
  MOCK_APPLY_DEVICE(int32_t);
  MOCK_APPLY_DEVICE(uint32_t);
};
}