Debug Mocha tests with Webstorm: mocha test timeouts are not respected

Please can you provide a sample project I can use to recreate the issue?

Here's an example to reproduce:

var waitForSomething = function () {
  return function (done) {
    this.timeout(5000);
    var interval = setInterval(function () {
      if (2 > 3) {
        clearInterval(interval);
        done();
      }
    }, 500);
  };
};

describe('Test timeout', function (){
  
  it('With timeout', waitForSomething());
  
  it('Without timeout', function (){
    console.log('blah-blah');
  });
  
});

My Run/Debug config looks like this:

Looks as if something has changed in the way mocha handles async tests without done() call when timeout is disabled... When debugging, Webstorm disables timeouts by passing --timeout 0 to mocha (see https://youtrack.jetbrains.com/issue/WEB-9860#comment=27-628129). With Mocha 1.21.4, mocha --timeout 0 --ui bdd yourtest.js fails with Error: timeout of 5000ms exceeded. With Mocha 4, the same command hangs infinitely...

Hm... rechecked with mocha 2.3 and it's the same - no timeout. But it was working on my previous Webstorm installation (2017 something most probably). And I never had mocha older than 2.3.

tried it in 2017.2 - same result... Don't have mocha > 2 < 4 for testing

2017.1 - same shit... see also the discussion in https://github.com/mochajs/mocha/issues/2537

Sadly the "Extra Mocha options" from the "Run/Debug Configuration" get prepended to the --timeout 0 option. Which then overrides it. So no luck there :-(

try to add "-- --timeout=2000" it works here.