public void Pass_Through_Variable_Discounts()
{
//准备
Mock <IDiscountHelper> mock = new Mock <IDiscountHelper>();
mock.Setup(t => t.ApplyDiscount(It.IsAny <decimal>()))
.Returns <decimal>(total => total);
mock.Setup(t => t.ApplyDiscount(It.Is <decimal>(v => v == 0)))
.Throws <ArgumentOutOfRangeException>();
mock.Setup(t => t.ApplyDiscount(It.Is <decimal>(v => v > 100)))
.Returns <decimal>(total => total * 0.9m);
mock.Setup(t => t.ApplyDiscount(It.IsInRange <decimal>(10, 100, Range.Inclusive)))
.Returns <decimal>(total => total - 5);
var target = new LinqValueCaculator(mock.Object);
//动作
decimal fiveDollarDiscount = target.ValueProducts(CreateProduct(5));
decimal tenDollarDiscount = target.ValueProducts(CreateProduct(10));
decimal fiftyDollarDiscount = target.ValueProducts(CreateProduct(50));
decimal hundredDollarDiscount = target.ValueProducts(CreateProduct(100));
decimal fiveHundredDollarDiscount = target.ValueProducts(CreateProduct(500));
//断言
Assert.AreEqual(5, fiveDollarDiscount, "5 fail");
Assert.AreEqual(5, tenDollarDiscount, "10 fail");
Assert.AreEqual(45, fiftyDollarDiscount, "50 fail");
Assert.AreEqual(95, hundredDollarDiscount, "100 fail");
Assert.AreEqual(450, fiveHundredDollarDiscount, "500 fail");
target.ValueProducts(CreateProduct(0));
}
public void Sun_Products_Correctly()
{
//准备
Mock <IDiscountHelper> mock = new Mock <IDiscountHelper>();
mock.Setup(t => t.ApplyDiscount(It.IsAny <decimal>())).Returns <decimal>(total => total);
//var discounter = new MinmumDiscountHelper();
var target = new LinqValueCaculator(mock.Object);
var goalTotal = products.Sum(t => t.Price);
//动作
var result = target.ValueProducts(products);
Assert.AreEqual(goalTotal, result);
}