title: VS Code Python unittest "No tests ran"
body: <p>I'm setting up python unit tests in VS Code using unittest, and running into some issues.  </p>
  
  <p>I am able to run my tests by selecting Run Tests from the status bar, and by right-clicking my test file in Explorer.  When I do either of these, I see unit test output (e.g. "test_name ... ok" and "Ran 1 test in 0.002s") in the Python Test Log window, but I get a VS Code notification saying "No tests ran, please check the configuration settings for the tests."  I am also not seeing the Run Test | Debug Test code lens in the test file.  </p>
  
  <p>I have followed the setup instructions in the VS Code docs here: <a href="https://code.visualstudio.com/docs/python/unit-testing" rel="nofollow noreferrer">https://code.visualstudio.com/docs/python/unit-testing</a>, but I'm wondering if there are other steps I'll need to follow to get proper integration with the IDE?</p>
  
  <p>I am using VS Code version 1.12.1, on Windows.</p>