Definitelytyped: Mocha retries compiles but considered not a function at runtime

[WillLuce]

• [X] I tried using the latest mocha/index.d.ts file in this repo and had problems.
• [X] I tried using the latest stable version of tsc. https://www.npmjs.com/package/typescript
• [X] I have a question that is inappropriate for StackOverflow. (Please ask any appropriate questions there).
• [X] I want to talk about mocha/index.d.ts.
  
  
  
  • The authors of that type definition are cc/ @kazimanzurrashid @otiai10 @jt000 @enlight
  
  

I'm attempting to use the retries callback for a test. The file compiles with no problem, but on runtime, the test fails and gives the error this.retries is not a function

Here's an example of my implementation

describe('suite name'), () => {

   it('test declaration', () => {
      this.retries(3)
   }

}

Another note is that when I use this, I get no intellisense for that object. This is true for tests and suites.

Thanks and let me know if I can do anything else.

[enlight]

If you want to use Mocha features via this you need to use unbound functions not arrow functions, as documented: https://mochajs.org/#arrow-functions