public void CheckSumTest()
{
model.RegistMenu("サラダ", 1);
model.RegistMenu("ハンバーグ", 10);
model.RegistMenu("ポテト", 100);
model.RegistMenu("スープ", 1000);
model.AddFood("サラダ");
Assert.True(model.GetTotalPrice() == 1);
model.AddFood("ハンバーグ");
Assert.True(model.GetTotalPrice() == 11);
model.AddFood("ポテト");
Assert.True(model.GetTotalPrice() == 111);
model.AddFood("スープ");
Assert.True(model.GetTotalPrice() == 1111);
model.Clear();
}
