public void Find_Product_WrongIndex_ShouldThrow()
{
//Arrange
IProductStock stock = new Instock();
Product product = new Product("Salam", 2.50, 50);
//Act
stock.Add(product);
//Assert
Assert.Throws <IndexOutOfRangeException>(() =>
stock.Find(-5)
, "Accessing index -5 should not be possible");
Assert.Throws <IndexOutOfRangeException>(() =>
stock.Find(1)
, "Accessing index 1 when 1 element present should not be possile");
}
public void FindAtIndex_On_100_000_Elements_ShouldWorkFast()
{
// Arrange
IProductStock stock = new Instock();
const int count = 100000;
List <Product> people = new List <Product>();
for (int i = 0; i < count; i++)
{
people.Add(new Product(i.ToString(), i, i));
stock.Add(people[i]);
}
// Act
Stopwatch sw = Stopwatch.StartNew();
Random rand = new Random();
for (int i = 0; i < 50000; i++)
{
int rnd = rand.Next(0, count - 1);
Assert.AreEqual(people[rnd], stock.Find(rnd));
}
// Assert
sw.Stop();
Assert.Less(sw.ElapsedMilliseconds, 200);
}
public void Find_Product_On_ExistingProduct_ShouldWorkCorrectly()
{
//Arrange
IProductStock stock = new Instock();
Product product1 = new Product("Balsam", 5.3, 12);
Product product2 = new Product("Korab", 12.6, 1255);
Product product3 = new Product("Meduza", 53.1, 55);
//Act
stock.Add(product1);
stock.Add(product2);
stock.Add(product3);
//Assert
Assert.AreSame(product3, stock.Find(2));
Assert.AreNotSame(product1, stock.Find(1));
Assert.AreSame(product1, stock.Find(0));
}
public void Add_MultipleElements_ShouldWorkCorrectly()
{
//Arrange
IProductStock stock = new Instock();
Product product1 = new Product("Salam", 2.50, 50);
Product product2 = new Product("Bekon", 2.65, 43);
Product product3 = new Product("Mayoneza", 1.30, 13);
//Act
stock.Add(product1);
stock.Add(product2);
stock.Add(product3);
//Assert
Assert.AreEqual(product1, stock.Find(0));
Assert.AreEqual(product2, stock.Find(1));
Assert.AreEqual(product3, stock.Find(2));
}
public void Add_Single_Product_ShouldBeAt_0_Index()
{
//Arrange
IProductStock stock = new Instock();
Product product = new Product("Salam", 2.50, 50);
//Act
stock.Add(product);
//Assert
Assert.AreEqual(product, stock.Find(0), "Added item should be on index 0");
}
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);
}