How to install NUnit for C# with NuGet Package Manager on Visual Studio 2015

Question

I have Visual Studio 2015. I want to add NUnit's tests for C# project with NuGet Package Manager, and I want to have possibility of running tests with Visual Studio and in Visual Studio.

First I create new C# project: menu File → New → Project → Installed → Templates → Visual C# → Console Application → OK.
Then I install NUnit: menu Tools → NuGet Package Manager → Manage NuGet Packages for Solution... Then I install packages:
- NUnit
- NUnit.Runner
- NUnitTestAdapter
In the output I see:
```
Successfully installed 'NUnit 3.0.0-beta-4' to Tmp.
Successfully installed 'NUnit.Runners 2.6.4' to Tmp.
Successfully installed 'NUnitTestAdapter 2.0.0' to Tmp.
```

The next step I do is adding new class with code: Right click on project → Add → Class → Visual C# Items → Class name Tests.cs → Add

Then I use below code:

namespace NUnit.Tests
{
    using System;
    using NUnit.Framework;

    [TestFixture]
    public class Tests
    {
        [Test]
        public void t1()
        {
        }
        [Test]
        public void t2()
        {
        }
    }
}

And finally when I press RunAll on Test Explorer I see:

------ Discover test started ------
NUnit VS Adapter 2.0.0.0 discovering tests is started
Attempt to load assembly with unsupported test framework in  C:\Users\Grzegorz\Desktop\Tmp\Tmp\bin\Debug\Tmp.exe
NUnit VS Adapter 2.0.0.0 discovering test is finished
========== Discover test finished: 0 found (0:00:00,0720041) ==========

No tests are being discovered.

The strange thing is that I found no tutorial when anybody uses NuGet to install NUnit in Visual Studio 2015 and run tests in Visual Studio.

I have installed NUnit and NUnitTestAdapter successfully. How to install NUnit.Runner? — Ripon Al Wasim
You can visit the link: stackoverflow.com/questions/35056195/… — Ripon Al Wasim

Richard Matheson Richard Matheson · Accepted Answer · 2015-10-12T13:06:08

It looks like you are using NUnit 3 beta. From the error message I'd guess the test runner doesn't support it. Try changing the NUnit package to a 2.x version and see if that makes a difference.

How to install NUnit for C# with NuGet Package Manager on Visual Studio 2015

2 Answers