Question

I am trying to show some information from a [TestMethod] method.

Usually we use NUnit and a line with Console.WriteLine runs fine and we can see it in ‘output’ window, but on this project we must to use Testing tools embebed with VS2010 and Console.WriteLine doesn’t run because we cannot see anything.

What I want is show trace messages on the ‘Output’ Window in this way more or less:

using System;
using System.Text;
using System.Collections.Generic;
using System.Linq;
using Microsoft.VisualStudio.TestTools.UnitTesting;


namespace Test1
{
    [TestClass]
    public class TestNum1
    {
        [TestMethod]
        public void Constructors()
        {
            for (int b = 1; b < 99; b++) {
                Console.WriteLine(b.ToString());  // <<<<<<< This don't show on Output.
                Assert.AreEqual(b, b);  // This is only a silly sample.
            }
        }
    }
}

Answer 1

you should replace Console.WriteLine with System.Diagnostics.Debug.WriteLine(...)

and you will see the output in the Visual Studio Debug Output Window.

Edit: just found out now this is a duplicated question, look here:

How to write to Console.Out during execution of an MSTest test