public void Filter_GetLargeBlackProducts_ReturnListWithSingleElement()
{
IEnumerable <Product> products = new List <Product>()
{
new Product("Polo Shirt", ProductColor.Black, ProductSize.L),
new Product("T-Shirt", ProductColor.Blue, ProductSize.XS),
new Product("T-Shirt", ProductColor.Red, ProductSize.S),
new Product("Jeans", ProductColor.Blue, ProductSize.XL),
new Product("Jeans", ProductColor.Black, ProductSize.XL),
};
var betterFilter = new BetterFilter();
var andSpecification = new AndSpecification <Product>(
new ColorSpecification(ProductColor.Black),
new SizeSpecification(ProductSize.L));
var filteredProducts = betterFilter.Filter(products, andSpecification).ToList();
Assert.That(filteredProducts.Count, Is.EqualTo(1));
return;
}
static void Main(string[] args)
{
#region OCP
var apple = new Product("Jabłko", Color.Green, Size.Small);
var tree = new Product("Drzewo", Color.Green, Size.Large);
var house = new Product("Dom", Color.Blue, Size.Large);
Product[] products = { apple, tree, house };
var bf = new BetterFilter();
var largeGreenSpec = new ColorSpecification(Color.Green)
& new SizeSpecification(Size.Large);
foreach (var p in bf.Filter(products, largeGreenSpec))
{
Console.WriteLine($" - {p.Name} jest zielony");
}
#endregion
}
// OCP = open for extension but closed for modification
public void MainCall()
{
var apple = new Product("Apple", Color.Green, Size.Small);
var tree = new Product("Tree", Color.Green, Size.Large);
var house = new Product("House", Color.Blue, Size.Large);
Product[] products = { apple, tree, house };
var pf = new ProductFilter();
Console.WriteLine("Green products (old):");
foreach (var p in pf.FilterByColor(products, Color.Green))
{
Console.WriteLine($" - {p.Name} is green");
}
// ^^ BEFORE
// vv AFTER
var bf = new BetterFilter();
Console.WriteLine("Green products (new):");
foreach (var p in bf.Filter(products, new ColorSpecification(Color.Green)))
{
Console.WriteLine($" - {p.Name} is green");
}
Console.WriteLine("Large products");
foreach (var p in bf.Filter(products, new SizeSpecification(Size.Large)))
{
Console.WriteLine($" - {p.Name} is large");
}
Console.WriteLine("Large blue items");
foreach (var p in bf.Filter(products,
new AndSpecification <Product>(new ColorSpecification(Color.Blue), new SizeSpecification(Size.Large)))
)
{
Console.WriteLine($" - {p.Name} is big and blue");
}
}
private static void SolidPrinciples()
{
var journal = new Journal();
journal.AddEntry("I Started today Udemy.");
journal.AddEntry("I started with Solid.");
Console.WriteLine(journal);
var persistence = new Persistence();
var fileName = @"C:\dev\designPatterns\journal.txt";
persistence.SaveToFile(journal, fileName, true);
var apple = new Product("apple", Enums.Color.Green, Enums.Size.Small);
var orange = new Product("orange", Enums.Color.Red, Enums.Size.Small);
var tree = new Product("tree", Enums.Color.Blue, Enums.Size.Large);
var house = new Product("house", Enums.Color.Blue, Enums.Size.Large);
Product[] products = { apple, tree, house, orange };
var productFilter = new ProductFilter();
Console.WriteLine("Blue products (old): ");
foreach (var p in productFilter.FilterByColor(products, Enums.Color.Blue))
{
Console.WriteLine($" - {p.Name} is Blue");
}
var betterFilter = new BetterFilter();
var colorSpec = new ColorSpecification(Enums.Color.Blue);
Console.WriteLine("Blue products (new): ");
foreach (var p in betterFilter.Filter(products, colorSpec))
{
Console.WriteLine($" - {p.Name} is Blue");
}
var sizeSpec = new SizeSpecification(Enums.Size.Large);
var doubleSpec = new AndSpecification <Product>(colorSpec, sizeSpec);
Console.WriteLine("Blue and Large products (new): ");
foreach (var p in betterFilter.Filter(products, doubleSpec))
{
Console.WriteLine($" - {p.Name} is Blue and large");
}
var rectangle = new Rectangle(2, 3);
Console.WriteLine($"{rectangle} has area {Area(rectangle)}");
Rectangle square = new Square();
square.Width = 3;
Console.WriteLine($"{square} has area {Area(square)}");
var parent = new PersonDependencyInversion {
Name = "Otman"
};
var child1 = new PersonDependencyInversion {
Name = "Loreto"
};
var child2 = new PersonDependencyInversion {
Name = "Emilio"
};
rS.AddParentChild(parent, child1);
}
static void Main(string[] args)
{
//demo1
var devCalculations = new List <BaseSalaryCalculator>
{
new SeniorDevSalaryCalculator(new DeveloperReport {
Id = 1, Name = "Dev1", Level = "Senior developer", HourlyRate = 30.5, WorkingHours = 160
}),
new JuniorDevSalaryCalculator(new DeveloperReport {
Id = 2, Name = "Dev2", Level = "Junior developer", HourlyRate = 20, WorkingHours = 150
}),
new SeniorDevSalaryCalculator(new DeveloperReport {
Id = 3, Name = "Dev3", Level = "Senior developer", HourlyRate = 30.5, WorkingHours = 180
})
};
//SalaryCalculator class is now closed for modification and opened for an extension, which is exactly what OCP states.
var calculator = new SalaryCalculator(devCalculations);
Console.WriteLine($"Sum of all the developer salaries is {calculator.CalculateTotalSalaries()} dollars");
//demo2
//old
var apple = new Product("Apple", Color.Green, Size.Small);
var tree = new Product("Tree", Color.Green, Size.Large);
var house = new Product("House", Color.Red, Size.Large);
Product[] products = { apple, tree, house };
var productFilter = new ProductFilter();
Console.WriteLine("Green products(Old): ");
foreach (var product in productFilter.FilterByColor(products, Color.Green))
{
Console.WriteLine($" - {product.Name} is green");
}
//new
var betterFilter = new BetterFilter();
Console.WriteLine("Green products (new)");
foreach (var product in betterFilter.Filter(products, new ColorSpecification(Color.Green)))
{
Console.WriteLine($" - {product.Name} is green");
}
//filter with two specification
Console.WriteLine("Large red items");
foreach (var product in betterFilter.Filter(
products,
new AndSpecification <Product>(
new ColorSpecification(Color.Red),
new SizeSpecification(Size.Large))))
{
Console.WriteLine($" - {product.Name} big and red");
}
Console.WriteLine();
Console.WriteLine("DEMO3");
//demo3
new DEMO3.Demo3().Execute();
Console.ReadLine();
}
static void Main(string[] args)
{
// 01 - SRP
var j = new Journal();
j.AddEntry("I cried today");
j.AddEntry("I ate a bug");
Console.WriteLine(j);
var p = new Persistence();
var filename = @"Journal.txt";
p.SaveToFIle(j, filename, true);
Process.Start(filename);
// 02 - OCP
var apple = new Product("Apple", Color.Green, Size.Small);
var tree = new Product("Tree", Color.Green, Size.Large);
var house = new Product("House", Color.Blue, Size.Large);
Product[] products = { apple, tree, house };
var pf = new ProductFilter();
Console.WriteLine("Green Product (Old):");
foreach (var item in pf.FilterByColor(products, Color.Green))
{
Console.WriteLine($" - {item.Name} is green");
}
var bf = new BetterFilter();
Console.WriteLine("Green Product (New):");
foreach (var item in bf.Filter(products, new ColorSpecification(Color.Green)))
{
Console.WriteLine($" - {item.Name} is green");
}
Console.WriteLine("Large Product (New):");
foreach (var item in bf.Filter(products, new SizeSpecification(Size.Large)))
{
Console.WriteLine($" - {item.Name} is large");
}
Console.WriteLine("Large Blue Product (New):");
foreach (var item in bf.Filter(products, new AndSpecification <Product>(new SizeSpecification(Size.Large), new ColorSpecification(Color.Blue))))
{
Console.WriteLine($" - {item.Name} is big and blue");
}
// 03 - LSP
var rc = new Rectangle(2, 3);
Console.WriteLine($"{rc} has area {Area(rc)}");
Rectangle sq = new Square();
sq.Width = 4;
Console.WriteLine($"{sq} has area {Area(sq)}");
// 05 - DIP
var parent = new Person()
{
Name = "John"
};
var child1 = new Person()
{
Name = "Chris"
};
var child2 = new Person()
{
Name = "Mary"
};
var relationships = new DIP.Relationships();
relationships.AddParentAndChild(parent, child1);
relationships.AddParentAndChild(parent, child2);
_ = new DIP.Research(relationships);
}
public static string analyzeData(IEnumerable <Student> students, string subject, string yearGroup, out string message)
{
var spec1 = new ClassSpecification(subject);
if (spec1.subjectName == "Invalid")
{
message = "Invalid Input";
return("Invalid Input");
}
var bf = new BetterFilter();
var SubjectStud = bf.filterItems(students, spec1);
var maleCount = 0;
var femaleCount = 0;
var counter = 0;
var boySpec = new GenderSpecification("Boy");
var swString1 = $"In year {yearGroup}, People who do {subject} are: \n \n ";
StringBuilder stringBuilder = new StringBuilder();
foreach (var student in SubjectStud)
{
string string2 = $"{student.Name}, ";
if (counter == 6)
{
string2 = $"{student.Name} \n ";
counter = -1;
}
stringBuilder.Append(string2);
if (boySpec.IsSatisfied(student))
{
maleCount++;
}
else if (!boySpec.IsSatisfied(student))
{
femaleCount++;
}
counter++;
}
Console.ForegroundColor = ConsoleColor.DarkMagenta;
var swString2 = stringBuilder.ToString();
var swString3 = "\n";
var swString4 = $" {SubjectStud.Count()} people do {subject}\n";
var swString5 = $" {maleCount} boys do {subject}";
var swString6 = $" {femaleCount} girls do {subject} \n";
var swString7 = "========================================================================" +
"================================================ \n";
var semiCompletedString = swString2 + swString3;
var combinedString = swString1 + swString2 + swString3 + swString4 + swString5 + swString6
+ swString7;
Console.ForegroundColor = ConsoleColor.Cyan;
Console.WriteLine(swString1);
System.Threading.Thread.Sleep(1000);
Console.ForegroundColor = ConsoleColor.White;
Console.WriteLine(semiCompletedString);
Console.ForegroundColor = ConsoleColor.Magenta;
Console.WriteLine(swString4 + swString5 + swString6);
message = "Successful";
return(combinedString);
}
