gistfile1.txt

using Xunit;
using Xunit.Abstractions;

namespace KenBonny.TestProject.Tests
{
    public class CtorTests
    {
        private readonly ITestOutputHelper _console;

        public CtorTests(ITestOutputHelper console)
        {
            _console = console;
        }
        
        [Fact]
        public void Test()
        {
            var intTest = new Response<int>(1); 
            WriteToConsole(intTest); 
            var intErrorTest = new Response<int>("error"); 
            WriteToConsole(intErrorTest); 
            var strShouldBeValueTest = new Response<string>("good"); 
            WriteToConsole(strShouldBeValueTest); 
            var strIsValueTest = new Response<string>(value: "good"); 
            WriteToConsole(strIsValueTest); 
            var strErrorTest = new Response<string>("error"); 
            WriteToConsole(strErrorTest);
        }
    
        private void WriteToConsole<T>(Response<T> response)
        {
            if (response.IsError) 
                _console.WriteLine($"Error: {response.Error}");
            else 
                _console.WriteLine($"Value: {response.Value}");
        }
    }
    
    class Response<T> 
    {
        public Response(T value)
        {
            Value = value;
            IsError = false;
        }

        public Response(string error)
        {
            Error = error; 
            IsError = true;
        }
        
        public T Value { get; }
        public string Error { get; }
        public bool IsError { get; }
        
    }
}