NUnit Test Adaptor 3.16.0 never displays results of test under Visual Studio 2015

Scene:

1. Window 10
2. Microsoft Visual Studio Professional 2015 (v14,.0.25431.01 Update 3)
3. NUnit 3.12.0
4. NUnit Test Adaptor 3.16.0
5. .NET Framework 4.5.2, x86

Repro:

• New class library project with one test fixture and test

using System;
using NUnit.Framework;

namespace UnitTests
{
    [TestFixture]
    public class UnitTest1
    {
        [Test]
        public void TestMethod1()
        {
            Assert.AreEqual("hi", "bye");
        }
    }
}

Problem:

The results of the test are never fed back into the adapter. I always receive an error in the output window such as

------ Run test started ------ NUnit Adapter 3.16.0.0: Test execution started Running selected tests in C:\Dev\temp\TestNUnit\UnitTests\bin\x86\Debug\UnitTests.dll NUnit3TestExecutor converted 1 of 1 NUnit test cases NUnit Adapter 3.16.0.0: Test execution complete Test adapter sent back a result for an unknown test case. Ignoring result for ‘TestMethod1’. ========== Run test finished: 0 run (0:00:05.0390741) ==========

The test adapter can discover tests. I can also debug tests.

Temporary Solution:

Revert back to NUnit Test Adaptor 3.15.1.0 which does not seem to exhibit this issue.

[OsirisTerje]

This issue is resolved by Version 3.16.1 which is released now on nuget.org and VSIX on Visual Studio marketplace. See all issues resolved and Release notes for details.

[ryanewtaylor]

@sanhin This worked for me, YMMV.

I uninstalled the NUnit Test Adaptor and restarted Visual Studio to ensure it was removed. Soemtimes, it remained installed 🤷‍♂. I repeated the uninstall and restart a couple times until it no longer showed in Extensions and Updates.

Then, with Visual Studio closed I installed the 3.15.1.0 version through the releases. Finally, I unchecked the “Automatically update this extension” and I have remained at v3.15.1.0 for a few days.