public void ApplyPromotionToGetTotalSum_OrdersArgumentIsEmpty_ReturnZero()
{
// Arrange
Dictionary <string, double> pinfo1 = new Dictionary <string, double>();
pinfo1.Add("A", 3);
Dictionary <string, double> pinfo2 = new Dictionary <string, double>();
pinfo2.Add("B", 2);
Dictionary <string, double> pinfo3 = new Dictionary <string, double>();
pinfo3.Add("C", 2);
List <Promotion> promotions = new List <Promotion>()
{
new Promotion(1, pinfo1, 130),
new Promotion(2, pinfo2, 45),
new Promotion(3, pinfo3, 30)
};
// Act
decimal result = PromotionEngine.ApplyPromotionToGetTotalSum(new List <Order>(), promotions, _productPricePairs);
// Assert
Assert.That(result, Is.EqualTo(0));
}
public void ApplyPromotionToGetTotalSum_NoPromotionApplied_ReturnExpectedSum_Example1()
{
// Arrange
List <Order> orders = new List <Order>();
orders.AddRange(new Order[] {
new Order()
{
OrderId = 1,
Products = new List <Product>
{
new Product
{
Id = "A"
},
new Product
{
Id = "B"
},
new Product
{
Id = "C"
}
}
}
});
// Act
decimal result = PromotionEngine.ApplyPromotionToGetTotalSum(orders, new List <Promotion>(), _productPricePairs);
// Assert
Assert.That(result, Is.EqualTo(100));
}
public void ApplyPromotionToGetTotalSum_ProductPriceDictionaryIsEmpty_ThrowArgumentNullException()
{
// Arrange
Dictionary <string, double> pinfo1 = new Dictionary <string, double>();
pinfo1.Add("A", 3);
Dictionary <string, double> pinfo2 = new Dictionary <string, double>();
pinfo2.Add("B", 2);
Dictionary <string, double> pinfo3 = new Dictionary <string, double>();
pinfo3.Add("C", 2);
List <Promotion> promotions = new List <Promotion>()
{
new Promotion(1, pinfo1, 130),
new Promotion(2, pinfo2, 45),
new Promotion(3, pinfo3, 30)
};
List <Order> orders = new List <Order>();
orders.AddRange(new Order[] {
new Order()
{
OrderId = 1,
Products = new List <Product>
{
new Product
{
Id = "A"
},
new Product
{
Id = "B"
},
new Product
{
Id = "C"
}
}
}
});
// Assert
Assert.That(() => PromotionEngine.ApplyPromotionToGetTotalSum(orders, promotions, new Dictionary <string, int>()), Throws.ArgumentNullException);
}
public void ApplyPromotionToGetTotalSum_AfterApplyingValidPromotionIncludingPercentageScenario_ReturnExpectedSum()
{
// Arrange
Dictionary <string, double> pinfo1 = new Dictionary <string, double>();
pinfo1.Add("A", 3);
Dictionary <string, double> pinfo2 = new Dictionary <string, double>();
pinfo2.Add("B", 2);
Dictionary <string, double> pinfo3 = new Dictionary <string, double>();
pinfo3.Add("C", 2);
Dictionary <string, double> pinfo4 = new Dictionary <string, double>();
pinfo4.Add("D", 0.5);
List <Promotion> promotions = new List <Promotion>()
{
new Promotion(1, pinfo1, 130),
new Promotion(2, pinfo2, 45),
new Promotion(3, pinfo3, 30),
new Promotion(4, pinfo4, 0m, false) // to include %
};
List <Order> orders = new List <Order>();
orders.AddRange(new Order[] {
new Order()
{
OrderId = 1,
Products = new List <Product>
{
new Product
{
Id = "A"
},
new Product
{
Id = "B"
},
new Product
{
Id = "C"
}
}
},
new Order()
{
OrderId = 2,
Products = new List <Product>
{
new Product
{
Id = "A"
},
new Product
{
Id = "A"
},
new Product
{
Id = "A"
},
new Product
{
Id = "A"
},
new Product
{
Id = "B"
},
new Product
{
Id = "B"
},
new Product
{
Id = "B"
},
new Product
{
Id = "B"
},
new Product
{
Id = "D"
}
}
}
});
// Act
decimal result = PromotionEngine.ApplyPromotionToGetTotalSum(orders, promotions, _productPricePairs);
// Assert
Assert.That(result, Is.EqualTo(377.5m));
}
public void ApplyPromotionToGetTotalSum_AfterApplyingValidPromotion_ReturnExpectedSum_Example3()
{
// Arrange
Dictionary <string, double> pinfo1 = new Dictionary <string, double>();
pinfo1.Add("A", 3);
Dictionary <string, double> pinfo2 = new Dictionary <string, double>();
pinfo2.Add("B", 2);
Dictionary <string, double> pinfo3 = new Dictionary <string, double>();
pinfo3.Add("C", 1);
pinfo3.Add("D", 1);
List <Promotion> promotions = new List <Promotion>()
{
new Promotion(1, pinfo1, 130),
new Promotion(2, pinfo2, 45),
new Promotion(3, pinfo3, 30)
};
List <Order> orders = new List <Order>();
orders.AddRange(new Order[] {
new Order()
{
OrderId = 1,
Products = new List <Product>
{
new Product
{
Id = "A"
},
new Product
{
Id = "B"
},
new Product
{
Id = "C"
}
}
},
new Order()
{
OrderId = 1,
Products = new List <Product>
{
new Product
{
Id = "A"
},
new Product
{
Id = "A"
},
new Product
{
Id = "B"
},
new Product
{
Id = "B"
},
new Product
{
Id = "B"
},
new Product
{
Id = "B"
},
new Product
{
Id = "D"
}
}
}
});
// Act
decimal result = PromotionEngine.ApplyPromotionToGetTotalSum(orders, promotions, _productPricePairs);
// Assert
Assert.That(result, Is.EqualTo(280));
}
