title: Is there test explorer in intellij idea? (to observe all the tests without execution)? I use TestNG
body: <p>In VS and Resharper I could see all test in my solution before any execution, see <a href="https://www.jetbrains.com/help/resharper/Reference__Windows__Unit_Test_Explorer.html" rel="noreferrer">https://www.jetbrains.com/help/resharper/Reference__Windows__Unit_Test_Explorer.html</a> </p>
  
  <p>In Idea I can't find any test explorer, only test runner but it slightly different. Maybe I need to install some dedicated plugins? I use maven and TestNG.</p>