using Xunit;
using System;
using System.IO;

namespace ConsoleApp
{
    public class ProgramTests
    {
        [Fact(DisplayName = "Main prints Eligible for discount for default example")] 
        public void Main_PrintsEligibleForDiscount() 
        {
            var sw = new StringWriter();
            Console.SetOut(sw);

            Program.TestMain(new string[0]);

            string output = sw.ToString();
            Assert.Contains("Eligible for discount", output);

            Console.SetOut(new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = true });
        }
    }
}

ProgramTests.cs

Get ready to embark on a thrilling coding journey with C# - the language that powers Windows applications, games, and more. Unlock the potential to build everything from dynamic web apps to powerful desktop software. With its elegance, performance, and versatility, C# is your gateway to the future of programming. Let's dive in and bring your coding dreams to life!

Challenge: Operators

解答