text: const CustomError = require("../extensions/custom-error");
  
  module.exports = function getSeason(date) {
    if(!date){
      return 'Unable to determine the time of year!';
  }
    if (Object.keys(date).length > 0) throw "Error";
    let month = date.getMonth();
    if (month == 0 || month == 1 || month == 11){
      return 'winter';
    } else if (month == 2 || month == 3 || month == 4){
      return 'spring';
    } else if (month == 5 || month == 6 || month == 7){
      return 'summer';
    } else if (month == 8 || month == 9 || month == 10){
      return 'autumn';
    } else {
      return Error;
    }
  };
  