BuilderImmutableObject

Facilitates work with immutable objects, allows changing storage restrictions and prevents importing source objects

How to install with Nuget ?

Install-Package BuilderImmutableObject

What is this repository for?

Library to work with C# immutable objects.

How do I use it?

public class Car
    {
        [Obsolete]
        public Car()
        {

        }

        public Car(string color, int size)
        {
            Color = color;
            Size = size;
        }

        public string Color { get; private set; }
        public int Size { get; private set; }
    }

public class BuilderTest
   {
       private Car _car;

       [SetUp]
       public void SetUp()
       {
           _car = new Car(color: "red", size: 78);
       }

       [Test]
       public void Must_Change_Color_Property()
       {
           var newCar = _car.Set(x => x.Color, "black").Build();

           Assert.AreNotSame(_car, newCar);

           Assert.AreEqual(78, _car.Size);
           Assert.AreEqual("red", _car.Color);

           Assert.AreEqual(78, newCar.Size);
           Assert.AreEqual("black", newCar.Color);
       }

       [Test]
       public void Must_Change_All_Properties()
       {
           var newCar = _car
               .Set(x => x.Color, "black")
               .Set(x => x.Size, 678)
               .Build();

           Assert.AreNotSame(_car, newCar);

           Assert.AreEqual(78, _car.Size);
           Assert.AreEqual("red", _car.Color);

           Assert.AreEqual(678, newCar.Size);
           Assert.AreEqual("black", newCar.Color);
       }
   }