
using Xunit;
using System;
using System.IO;

namespace ConsoleApp {
    public class ProgramTests {
        [Fact(DisplayName = "Main prints the correctly formatted name and age sentence")]
        public void Main_PrintsFormattedSentence()
        {
            var sw = new StringWriter();
            Console.SetOut(sw);

            Program.TestMain(new string[0]);

            string output = sw.ToString().Trim();
            Assert.Contains("Hello, my name is Alice and I am 20 years old", output);
            Console.SetOut(new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = true });
        }
    }
}

ProgramTests.cs

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Challenge: String Formatting

解答