template test gen

template <class T, class M> M GetFieldType(M T::*);

template <typename T>
void GenerateTest(DataType::Processed container,
                  const std::string &container_name, T field,
                  const std::string &field_name) {
  std::set<decltype(GetFieldType(field))> values;
  for (const auto &data_type : container) {
    values.emplace(data_type.second.*field);
  }

  for (const auto &value : values) {
    std::cout << "EXPECT_EQ(Count(" << container_name
              << ", &DataType::" << field_name << ", " << value << "), "
              << Count(container, field, value) << ");" << std::endl;
  }
  std::cout << std::endl;
}

template <typename T>
void PrintValues(DataType::Processed container, const std::string &name,
                 T field) {
  std::set<decltype(GetFieldType(field))> values;
  for (const auto &data_type : container) {
    values.emplace(data_type.second.*field);
  }

  for (const auto &value : values) {
    std::cout << "\"" << name << "\"=\"" << value
              << "\" : " << Count(container, field, value) << std::endl;
  }
  std::cout << std::endl;
}