public ProductRepository()
{
this._products = new Dictionary <string, Product>();
var product = Product.CreateANewProduct("テスト", SalesPeriod.SellYearRound(), null, 3.5);
this._products.Add(product.Describe().Id, product);
product = Product.CreateANewProduct("テスト２", SalesPeriod.SellInLimitedTime(6, RoughDay.middle, 10, RoughDay.beginning), null, 2.8);
this._products.Add(product.Describe().Id, product);
}
