title: No tests discovered using xUnit on ASP.Net Core 1.0 project with build on Visual Studio Team Services Hosted agent
body: <p>I have a problem where my xUnit tests in my ASP.Net Core 1.0 application are not discovered when building on Visual Studio Team Services.</p>
  
  <p>The test project is being built successfully, but no test results are given. I find the following messages regarding the Visual Studio Test step in the log:</p>
  
  <pre><code>******************************************************************************
  Starting task: Test Assemblies **\*test*.dll;-:**\xunit.runner.visualstudio.testadapter.dll
  ******************************************************************************
  Executing the powershell script: C:\LR\MMS\Services\Mms\TaskAgentProvisioner\Tools\agents\default\tasks\VSTest\1.0.29\VSTest.ps1
  Working folder: C:\a\1
  Executing C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\CommonExtensions\Microsoft\TestWindow\vstest.console.exe "C:\a\1\s\artifacts\bin\project.test\Debug\dnx451\project.test.dll"  /EnableCodeCoverage /InIsolation /logger:trx
  Microsoft (R) Test Execution Command Line Tool Version 14.0.24720.0
  Copyright (c) Microsoft Corporation.  All rights reserved.
  Starting test execution, please wait...
  Warning: No test is available in C:\a\1\s\artifacts\bin\project.test\Debug\dnx451\project.test.dll. Make sure that installed test discoverers &amp; executors, platform &amp; framework version settings are appropriate and try again.
  Attachments:
    C:\a\1\TestResults\0ad44b11-4dd4-41ba-a0bf-66d9cd487a3c\buildguest_TASKAGENT5-0007 2016-03-01 07_33_04.coverage
  Information: Additionally, you can try specifying '/UseVsixExtensions' command if the test discoverer &amp; executor is installed on the machine as vsix extensions and your installation supports vsix extensions. Example: vstest.console.exe myTests.dll /UseVsixExtensions:true
  No results found to publish.
  </code></pre>
  
  <p>The tests are written like this:</p>
  
  <pre><code>using System;
  using System.Collections.Generic;
  using System.Linq;
  using System.Net;
  using Xunit;
  
  namespace project.tests
  {
      public class ProjectTests
      {
          [Fact]
          public void PassingTest()
          {
              Assert.Equal(4, Add(2, 2));
          }
  
          [Fact]
          public void FailingTest()
          {
              Assert.Equal(5, Add(2, 2));
          }
  
          int Add(int x, int y)
          {
              return x + y;
          }
      }
  }
  </code></pre>
  
  <p>The tests run just fine locally, but not on Visual Studio Team Services.</p>
  
  <p>For reference, this is my project.json</p>
  
  <pre><code>{
    "authors": [ "Tom Reiertsen" ],
    "commands": {
      "test": "xunit.runner.dnx"
    },
    "dependencies": {
      "project": "1.0.0-rc1-update1",
      "Microsoft.AspNet.Hosting": "1.0.0-rc1-final",
      "Microsoft.AspNet.TestHost": "1.0.0-rc1-final",
      "Microsoft.AspNet.WebApi.Client": "5.2.3",
      "Microsoft.CSharp": "4.0.1-beta-23516",
      "System.Collections": "4.0.11-beta-23516",
      "System.Linq": "4.0.1-beta-23516",
      "System.Runtime": "4.0.21-beta-23516",
      "System.Threading": "4.0.11-beta-23516",
      "xunit": "2.1.0",
      "xunit.runner.dnx": "2.1.0-rc1-build204",
      "xunit.runner.visualstudio": "2.1.0"
    },
    "description": "project.test Class Library",
    "frameworks": {
      "dnx451": { }
    },
    "licenseUrl": "",
    "projectUrl": "",
    "tags": [ "" ],
    "version": "1.0.0-rc1-update1"
  }
  </code></pre>