public async Task Run_ShouldNot_ApplyDiscount_When_OtherRuleAppliedAHigherDiscount()
{
// Arrange
var mockRule = new Mock <IRule <ApplyDiscountContext> >();
mockRule.Setup(_ => _.ShouldRun(It.IsAny <ApplyDiscountContext>())).Returns(false);
var rule = new BirthdayDiscountRule(mockRule.Object.Invoke);
var context = new ApplyDiscountContext
{
ClientBirthday = DateTime.Now,
DiscountApplied = 0.7m,
DiscountTypeApplied = "Other Rule",
Context = new ShoppingCart
{
CouponCode = "coupon-001",
StartDate = DateTime.Now,
Items = new List <ShoppingCartItem>
{
new ShoppingCartItem {
Id = 1, Name = "Product 1", Price = 1.00m, Quantity = 2
},
new ShoppingCartItem {
Id = 2, Name = "Product 2", Price = 2.00m, Quantity = 1
},
new ShoppingCartItem {
Id = 3, Name = "Product 3", Price = 3.50m, Quantity = 1
},
}
}
};
// Act
await rule.Run(context);
// Assert
context.DiscountApplied.Should().Be(0.70m);
context.DiscountTypeApplied.Should().Be("Other Rule");
}
[InlineData(0, true)] // The month of client birthday
public void ShouldRun(int daysFromUtcNow, bool expectedResult)
{
// Arrange
var mockRule = new Mock <IRule <ApplyDiscountContext> >();
mockRule.Setup(_ => _.ShouldRun(It.IsAny <ApplyDiscountContext>())).Returns(false);
var rule = new BirthdayDiscountRule(mockRule.Object.Invoke);
var context = new ApplyDiscountContext
{
ClientBirthday = DateTime.Now.AddDays(daysFromUtcNow),
Context = new ShoppingCart
{
CouponCode = "coupon-001",
StartDate = DateTime.Now,
Items = new List <ShoppingCartItem>
{
new ShoppingCartItem {
Id = 1, Name = "Product 1", Price = 1.00m, Quantity = 2
},
new ShoppingCartItem {
Id = 2, Name = "Product 2", Price = 2.00m, Quantity = 1
},
new ShoppingCartItem {
Id = 3, Name = "Product 3", Price = 3.50m, Quantity = 1
},
}
}
};
// Act
var shouldRun = rule.ShouldRun(context);
// Assert
shouldRun.Should().Be(expectedResult);
}
