I am really frustrated with this issue. I have already tried changing the version numbers but no tests are showing in the test explorer.
In the test output window I can see this output
Starting Microsoft.Framework.TestHost [C:\Users\sul\.dnx\runtimes\dnx-clr-win-x86.1.0.0-beta4\bin\dnx.exe --appbase "path to test project" Microsoft.Framework.ApplicationHost --port 63938 Microsoft.Framework.TestHost --port 63954 list ]
Unable to start Microsoft.Framework.TestHost
========== Discover test finished: 0 found (0:00:36.5471185) ==========
This is so fragile, sometimes tests are shown then they disappear for good. Restarting VS didn't help, reinstalling the xunit/xunit runner didn't help either.
In another test project I got a different output but still not tests are showing
Starting Microsoft.Framework.TestHost [C:\Users\sul\.dnx\runtimes\dnx-clr-win-x86.1.0.0-beta4\bin\dnx.exe --appbase "path to project" Microsoft.Framework.ApplicationHost --port 63938 Microsoft.Framework.TestHost --port 64421 list ]
Connected to Microsoft.Framework.TestHost
Discovering tests in 'path to project\project.json'
========== Discover test finished: 0 found (0:00:35.9341416) ==========
This is part of my project.json
"commands": {
"test": "xunit.runner.dnx"
},
"dependencies": {
"Microsoft.AspNet.Http": "1.0.0-*",
"Microsoft.AspNet.Http.Core": "1.0.0-*",
"Microsoft.AspNet.TestHost": "1.0.0-*",
"Moq": "4.2.1502.911",
"xunit": "2.0.0",
"xunit.runners": "2.0.0"
I manage to get this to work by making sure that all the packages in all the solution projects reference the same version.
This happened to me because I was referencing the latest versions as you can see from project.json.
One other thing I did is never reference individual packages which fits the purpose only. For example in my business project I am creating a middleware and I was referencing Microsoft.AspNet.Http because I don't need the full MVC package. This caused issues in the test project so I added Microsoft.AspNet.MVC to any project that needs any sort of Http interaction i.e. httpcontext.
This may not be the ideal fix but it did work for me. I hope this helps someone else experiencing the same issue.