using System;

using NUnit.Framework;

​

public class Star

{

​

    //your code

    private double ShineFactor;

    private bool IsFaded;

    public string Name { get; set; }

    public Star(double shineFactor)

    {

    ShineFactor = shineFactor;

        IsFaded = false;

    }

    public void FadeOut()

    {

    IsFaded = true;

    }

    public double Shine()

    {

        if (IsFaded)

        {

            throw new InvalidOperationException("Star cannot shine when faded");

        }

        return ShineFactor;

    }

​

    public static void Main(string[] args)

    {

        // Code for debugging the test case NewStarsCanShine

        //double shineFactor = 1d;

        //Star star = new Star(shineFactor);

        //Console.WriteLine($"Are equal: {object.Equals(shineFactor, star.Shine())}, expected: {shineFactor}, actual: {star.Shine()}");

    }

​

​

[TestFixture]

public class Test

{

    [Test]

    public void NewStarsCanShine()

    {

        double shineFactor = 1d;

        Star star = new Star(shineFactor);

        Assert.AreEqual(shineFactor, star.Shine());

    }

    [Test]

    public void FadedOutStarsCannotShine()

    {

        double shineFactor = 1.5d;

        Star star = new Star(shineFactor);

        star.FadeOut();

        Assert.Throws(typeof(InvalidOperationException), () => star.Shine());

    }

    [Test]

    public void StarsCanBeNamed()

    {

        double shineFactor = 0.8d;

        Star star = new Star(shineFactor);

        star.Name = "Sun";

        Assert.AreEqual("Sun", star.Name);

    }

}}