public void FindAllByPrice_On100000ElementsWithRandomPrice_ShouldWorkFast()
{
// Arrange
IProductStock stock = new Instock();
const int count = 100_000;
List <Product> expected = new List <Product>();
Random random = new Random();
for (int i = 0; i < count; i++)
{
int price = random.Next(5, 30);
Product p = new Product(i.ToString(), price, 25);
if (price == 21)
{
expected.Add(p);
}
stock.Add(p);
}
Stopwatch sw = Stopwatch.StartNew();
// Act
IEnumerable <Product> FindAllByPrice() => stock.FindAllByPrice(21);
// Assert
CollectionAssert.AreEqual(expected, FindAllByPrice());
sw.Stop();
Assert.Less(sw.ElapsedMilliseconds, 25);
}
public void FindByPrice_On_ExistingItems_ShouldReturn_Correct_Enumeration()
{
//Arrange
IProductStock stock = new Instock();
Product product1 = new Product("SalamShpekov", 2.65, 50);
Product product2 = new Product("BekonNov", 2.65, 43);
Product product3 = new Product("MayonezaNiskomaslena", 1.30, 13);
Product product4 = new Product("Ketchup", 2.65, 73);
Product product5 = new Product("Jelqzo", 0.70, 20);
Product product6 = new Product("Belina", .75, 50);
Product product7 = new Product("Sirene", .77, 50);
List <Product> expected = new List <Product>()
{
product1, product2, product4
};
//Act
stock.Add(product1);
stock.Add(product2);
stock.Add(product3);
stock.Add(product4);
stock.Add(product5);
stock.Add(product6);
stock.Add(product7);
//Assert
List <Product> actual = stock.FindAllByPrice(2.65).ToList();
CollectionAssert.AreEqual(expected, actual);
}
static void Main(string[] args)
{
Instock products = new Instock();
var pr1 = new Product("salam", 10, 2);
var pr2 = new Product("masla", 10, 1);
var pr3 = new Product("bob", 10, 3);
products.Add(pr1);
products.Add(pr2);
products.Add(pr3);
var res = products.FindAllByPrice(10);
System.Console.WriteLine( );
}
public void FindByPrice_UnderFloatingPoint_PrecisionSurcumstances_ShouldNotFail()
{
//Arrange
IProductStock stock = new Instock();
Product product1 = new Product("SalamShpekov", 3.50, 50);
Product product2 = new Product("BekonNov", 2.65, 43);
Product product3 = new Product("MayonezaNiskomaslena", 1.30, 13);
//Act
stock.Add(product1);
stock.Add(product2);
stock.Add(product3);
//Assert
List <Product> actual = stock.FindAllByPrice(1.2999999).ToList();
CollectionAssert.AreEqual(new List <Product>(), actual);
}
public void FindByPrice_On_Non_ExistantPrice_ShouldReturn_Empty_Enumeration()
{
//Arrange
IProductStock stock = new Instock();
Product product1 = new Product("SalamShpekov", 3.50, 50);
Product product2 = new Product("BekonNov", 2.65, 43);
Product product3 = new Product("MayonezaNiskomaslena", 1.30, 13);
//Act
stock.Add(product1);
stock.Add(product2);
stock.Add(product3);
//Assert
List <Product> actual = stock.FindAllByPrice(0.70).ToList();
CollectionAssert.AreEqual(new List <Product>(), actual);
}
public static void Main()
{
var stock = new Instock();
var productA = new Product("A", 50, 100);
var productC = new Product("C", 100, 10);
var productB = new Product("B", 50, 3);
stock.Add(productA);
stock.Add(productC);
stock.Add(productB);
var contains = stock.Contains(productC);
var find = stock.Find(0);
stock.ChangeQuantity("C", -10);
var byLabel = stock.FindByLabel("C");
var firstCountByAscLabel = stock.FindFirstByAlphabeticalOrder(2);
var byPriceRange = stock.FindAllInRange(30, 500);
var byPrice = stock.FindAllByPrice(50);
var firstMostExpensive = stock.FindFirstMostExpensiveProducts(2);
}
