using System;

using System.Linq;

using System.Reflection;

using Xunit;

​

// Requirements 

// https://docs.google.com/document/d/1FLdYrxw4JXBSzm4T0HGoyUY2YtLrUmBeI0ZCEvj8DAs/edit?usp=sharing

​

public class RomanNumeralService

{

    public string Convert(int number)

    {

        return "I"; 

    }

}

​

public class RomanNumeralServiceTests

{

    private readonly RomanNumeralService _service = new RomanNumeralService();

​

    public void Convert_ValidNumber_ReturnsCorrectRomanNumeral()

    {

        Assert.Equal("I", _service.Convert(1));

    }

}

​

​

​

​

​

​

// Running tests

public class Program

{

    public static void Main()

    {

        try

        {

            RunAllTests(typeof(RomanNumeralServiceTests));

        }

        catch (Exception ex)

        {

            Console.WriteLine($"Test execution failed: {ex.Message}");

        }

    }

​

    public static void RunAllTests(Type testClassType)

    {

        var testClassInstance = Activator.CreateInstance(testClassType);

        var testMethods = testClassType.GetMethods(BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly)

                                       .Where(m => m.ReturnType == typeof(void) && m.GetParameters().Length == 0);

​

        foreach (var method in testMethods)

        {

            try

            {

                method.Invoke(testClassInstance, null);

                Console.WriteLine($"Test Passed: {method.Name}");

            }

            catch (TargetInvocationException ex) when (ex.InnerException != null)

            {

                Console.WriteLine($"Test Failed: {method.Name} - {ex.InnerException.Message}");

            }

        }

    }

}

​