public void FindFirstMostExpensiveProducts_Should_Return_CorrectEnumeration()
{
//Arrange
IProductStock stock = new Instock();
Product product2 = new Product("BekonNov", 2.65, 43);
Product product3 = new Product("MayonezaNiskomaslena", 1.30, 13);
Product product1 = new Product("SalamShpekov", 3.50, 50);
//Act
stock.Add(product1);
stock.Add(product2);
stock.Add(product3);
//Assert
List <Product> expected = new List <Product>()
{
product1, product2
};
CollectionAssert.AreEqual(expected, stock.FindFirstMostExpensiveProducts(2));
expected = new List <Product>()
{
product1
};
CollectionAssert.AreEqual(expected, stock.FindFirstMostExpensiveProducts(1));
}
static void Main(string[] args)
{
var instock = new Instock();
instock.Add(new Product("bob1", 23.1, 2));
instock.Add(new Product("bob2", 23.5, 2));
instock.Add(new Product("bob3", 21.2, 2));
System.Console.WriteLine(string.Join(" - ", instock.FindAllInRange(21.3, 24).Select(a => a.Label)));
}
public void FindByLabel_NoExistingProduct_ShouldThrow()
{
//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
Assert.Throws <ArgumentException>(() => stock.FindByLabel("BoroTreti"));
}
public void Add_MultipleElements_Should_Increase_Count()
{
//Arrange
IProductStock stock = new Instock();
Product product1 = new Product("Getter", 20.5, 15);
Product product2 = new Product("OtherPRoduct", 206.1, 67);
Product product3 = new Product("50CentPoster", 50, 50);
//Act
stock.Add(product1);
stock.Add(product2);
stock.Add(product3);
//Assert
Assert.AreEqual(3, stock.Count, "Count should increase with every item.");
}
public void FindAllByQuantity_On_100000_Elements_ShouldWorkFast()
{
// Arrange
IProductStock stock = new Instock();
const int count = 100000;
Dictionary <int, List <Product> > products
= new Dictionary <int, List <Product> >();
for (int i = 0; i < count; i += 400)
{
for (int j = 0; j < 400; j++)
{
Product p = new Product((i + j).ToString(), j, j);
if (!products.ContainsKey(j))
{
products[j] = new List <Product>();
}
stock.Add(p);
products[j].Add(p);
}
}
Stopwatch sw = Stopwatch.StartNew();
// Act
// Assert
for (int i = 0; i < 100; i++)
{
CollectionAssert.AreEqual(products[i], stock.FindAllByQuantity(i));
}
sw.Stop();
Assert.Less(sw.ElapsedMilliseconds, 100);
}
public void ChangeQuantity_100000_OnSameProduct_ShouldWorkFast()
{
// Arrange
IProductStock stock = new Instock();
const int count = 100000;
List <Product> products = new List <Product>(100000);
for (int i = 0; i < count; i++)
{
Product p = new Product(i.ToString(), i, i);
stock.Add(p);
products.Add(p);
}
// Act & Assert
Stopwatch sw = Stopwatch.StartNew();
Random rand = new Random();
for (int i = 0; i < 50000; i++)
{
int qty = rand.Next(50, 10000);
stock.ChangeQuantity(products[576].Label, qty);
Assert.AreEqual(products[576].Quantity, qty);
}
sw.Stop();
Assert.Less(sw.ElapsedMilliseconds, 200);
}
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);
}
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 Contains_100000_Elements_ShouldExecuteFast()
{
// Arrange
IProductStock stock = new Instock();
const int count = 100000;
LinkedList <Product> products = new LinkedList <Product>();
for (int i = 0; i < count; i++)
{
products.AddLast(new Product(i.ToString(), i, i));
stock.Add(products.Last.Value);
}
// Act
Stopwatch sw = Stopwatch.StartNew();
LinkedListNode <Product> node = products.First;
while (node != null)
{
Assert.True(stock.Contains(node.Value));
node = node.Next;
}
sw.Stop();
Assert.Less(sw.ElapsedMilliseconds, 250);
}
public void FindAllInPriceRange_OnLargeRange_ShouldWorkFast()
{
// Arrange
IProductStock org = new Instock();
const int count = 100_000;
int expected = 0;
Random random = new Random();
for (int i = 0; i < count; i++)
{
int price = random.Next(10, 50000);
if (price > 105 && price <= 10000)
{
expected++;
}
org.Add(new Product(i.ToString(), price, i));
}
Stopwatch sw = Stopwatch.StartNew();
// Act
IEnumerable <Product> FindInPriceRange() => org.FindAllInRange(105, 10000);
// Assert
Assert.AreEqual(expected, FindInPriceRange().Count());
sw.Stop();
Assert.Less(sw.ElapsedMilliseconds, 300);
}
public void FindByLabel_Shoul_WorkFast_On_100000_Products()
{
// Arrange
IProductStock stock = new Instock();
const int count = 100000;
List <KeyValuePair <string, Product> > names = new List <KeyValuePair <string, Product> >(100000);
for (int i = 0; i < count; i++)
{
Product p = new Product(i.ToString(), i, i);
stock.Add(p);
names.Add(new KeyValuePair <string, Product>(p.Label, p));
}
// Act
Stopwatch sw = Stopwatch.StartNew();
// Assert
for (int i = 0; i < count; i++)
{
Assert.True(stock.FindByLabel(names[i].Key) == names[i].Value);
}
sw.Stop();
Assert.Less(sw.ElapsedMilliseconds, 230);
}
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 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 FindFirstMostExpensiveProducts_ShouldReturn_OrderedEnumeration()
{
//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);
Product product4 = new Product("Ketchup", 1.80, 73);
Product product5 = new Product("Jelqzo", 0.70, 20);
Product product6 = new Product("Belina", .75, 50);
Product product7 = new Product("Sirene", .77, 50);
//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> expected = new List <Product>()
{
product1, product2, product4, product3, product7, product6, product5
};
List <Product> actual = stock.FindFirstMostExpensiveProducts(stock.Count).ToList();
CollectionAssert.AreEqual(expected, actual);
}
public void Enumerator_ShouldReturn_ProductsInInsertionOrder_After_Adding_Multiple()
{
//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);
Product product4 = new Product("Ketchup", 1.80, 73);
Product product5 = new Product("Jelqzo", 0.70, 20);
Product product6 = new Product("Belina", .75, 50);
Product product7 = new Product("Sirene", .77, 50);
//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> expected = new List <Product>()
{
product1, product2,
product3, product4,
product5, product6,
product7,
};
List <Product> actual = stock.Take(stock.Count).ToList();
CollectionAssert.AreEqual(expected, actual);
}
public void FindAllByQuantity_On_WrongArgument_ShouldReturnEmpty_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);
Product product4 = new Product("Ketchup", 1.80, 73);
Product product5 = new Product("Jelqzo", 0.70, 20);
Product product6 = new Product("Belina", .75, 50);
Product product7 = new Product("Sirene", .77, 50);
//Act
stock.Add(product1);
stock.Add(product2);
stock.Add(product3);
stock.Add(product4);
stock.Add(product5);
stock.Add(product6);
stock.Add(product7);
stock.ChangeQuantity("Sirene", 5);
stock.ChangeQuantity("SalamShpekov", 5);
stock.ChangeQuantity("Belina", 5);
//Assert
List <Product> expected = new List <Product>();
List <Product> actual = stock.FindAllByQuantity(500).ToList();
CollectionAssert.AreEqual(expected, actual);
}
public void ChangeQuantity_On_Multiple_Elements_ShouldWorkCorrectly()
{
//Arrange
IProductStock stock = new Instock();
Product product1 = new Product("SalamShpekov", 3.50, 560);
Product product2 = new Product("BekonNov", 2.65, 43);
Product product3 = new Product("MayonezaNiskomaslena", 1.30, 13);
Product product4 = new Product("Ketchup", 1.80, 73);
Product product5 = new Product("Jelqzo", 0.70, 130);
Product product6 = new Product("Belina", .75, 240);
Product product7 = new Product("Sirene", .77, 30);
//Act
stock.Add(product1);
stock.Add(product2);
stock.Add(product3);
stock.Add(product4);
stock.Add(product5);
stock.Add(product6);
stock.Add(product7);
stock.ChangeQuantity(product4.Label, 50);
stock.ChangeQuantity(product7.Label, 50);
stock.ChangeQuantity(product3.Label, 50);
//Assert
List <Product> expected = new List <Product>()
{
product4, product7, product3
};
List <Product> actual = stock.FindAllByQuantity(50).ToList();
CollectionAssert.AreEqual(expected, actual);
}
static void Main(string[] args)
{
IProductStock stock = new Instock();
Product product1 = new Product("SalamShpekov", 3.50, 560);
Product product2 = new Product("BekonNov", 2.65, 43);
Product product3 = new Product("MayonezaNiskomaslena", 1.30, 13);
Product product4 = new Product("Ketchup", 1.80, 73);
Product product5 = new Product("Jelqzo", 0.70, 130);
Product product6 = new Product("Belina", .75, 240);
Product product7 = new Product("Sirene", .77, 30);
//Act
stock.Add(product1);
stock.Add(product2);
stock.Add(product3);
stock.Add(product4);
stock.Add(product5);
stock.Add(product6);
stock.Add(product7);
stock.ChangeQuantity(product4.Label, 50);
stock.ChangeQuantity(product7.Label, 50);
stock.ChangeQuantity(product3.Label, 50);
//Assert
List <Product> expected = new List <Product>()
{
product4, product7, product3
};
List <Product> actual = stock.FindAllByQuantity(50).ToList();
;
}
public void FindAllByPriceRange_On_ExistingRange_ShouldReturn_Correct_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);
Product product4 = new Product("Ketchup", 1.80, 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>()
{
product7, product6
};
//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.FindAllInRange(0.70, 0.77).ToList();
CollectionAssert.AreEqual(expected, actual);
}
public void FindFirstByAlphabeticalOrder_Should_ReturnCorrectEnumeration()
{
//Arrange
IProductStock stock = new Instock();
Product product1 = new Product("Abra", 3.50, 50);
Product product2 = new Product("Bobar", 2.65, 43);
Product product3 = new Product("Caza", 1.30, 13);
Product product4 = new Product("Darfield", 1.80, 73);
Product product5 = new Product("Eil*", 0.70, 20);
Product product6 = new Product("Flen", .75, 50);
Product product7 = new Product("Giilqzo", .77, 50);
//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> expected = new List <Product>()
{
product1, product2, product3, product4, product5, product6, product7
};
List <Product> actual = stock.FindFirstByAlphabeticalOrder(stock.Count).ToList();
CollectionAssert.AreEqual(expected, actual);
}
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 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 void FindFirstMostExpensiveProducts_On_WrongArgumentPassed_ShouldThrow()
{
//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
Assert.AreEqual(3, stock.Count);
Assert.Throws <ArgumentException>(() => {
stock.FindFirstMostExpensiveProducts(5).First();
});
}
public void FindFirstByAlphabetical_On_WrongArgumentShouldThrow()
{
//Arrange
IProductStock stock = new Instock();
Product product5 = new Product("Jelqzo", 0.70, 20);
Product product6 = new Product("Belina", .75, 50);
Product product7 = new Product("Sirene", .77, 50);
//Act
stock.Add(product5);
stock.Add(product6);
stock.Add(product7);
//Assert
Assert.Throws <ArgumentException>(() =>
{
stock.FindFirstByAlphabeticalOrder(5).FirstOrDefault();
});
}
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 FindAllByPriceRange_LowerEndExclusive_HigherEndInclusive_ShouldWorkCorrectly()
{
//Arrange
IProductStock stock = new Instock();
Product product1 = new Product("SalamShpekov", 3.50, 50);
Product product2 = new Product("Kurban", 2.0, 2);
//Act
stock.Add(product1);
stock.Add(product2);
//Assert
List <Product> expected = new List <Product>()
{
product1
};
List <Product> actual = stock.FindAllInRange(2.0, 3.50).ToList();
CollectionAssert.AreEqual(expected, actual);
}
public void FindByLabel_Should_Work_Correctly()
{
//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);
stock.ChangeQuantity("SalamShpekov", 3);
//Assert
Assert.IsTrue(stock.Contains(product1));
Assert.AreSame(product2, stock.FindByLabel("BekonNov")
, "FindByLabel on existing element should return the element itself");
}
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 void ChangeQuantity_On_ExistingProduct_ShouldWorkCorrectly()
{
//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);
stock.ChangeQuantity("SalamShpekov", 3);
int expected = 3;
int actual = stock.FindByLabel("SalamShpekov").Quantity;
//Assert
Assert.AreEqual(3, stock.Count);
Assert.AreEqual(expected, actual);
}
public void Add_Many_Count_ShouldWork()
{
// Arrange
IProductStock stock = new Instock();
const int count = 100_000;
// Act & Assert
for (int i = 0; i < count; i++)
{
Assert.AreEqual(i, stock.Count);
stock.Add(new Product(i.ToString(), i, i));
}
}