title: How to create a separate test-directory in AndroidStudio?
body: <p>I have the following project structure: </p>
  
  <p><a href="https://i.stack.imgur.com/KaQam.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/KaQam.jpg" alt="enter image description here"></a></p>
  
  <p>I want to create tests in the "tests"-folder in the bottom. When I copy-paste a test class inside, it is obviously not recognized, as seen in the image below. 
  How should I make Android Studio recognize the "tests" directory, or something inside it, as a test folder?</p>
  
  <p><a href="https://i.stack.imgur.com/K7D1p.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/K7D1p.jpg" alt="enter image description here"></a></p>
  
  <p>Thank you!</p>