window.requestAnimationFrame = jest.fn().mockImplementationOnce((cb) => cb()) fails the unit test

[WiiTee]

In Game Loop Part 2 of your tutorial neglects to mention the following in the game

        public Awake(): void{
        //Components
        this.AddComponents(new GameInputComponents())

        super.Awake()
        
        //Child entities
        for(const entity of this.Entities){
            entity.Awake()
        }

        window.requestAnimationFrame(() => {
            this._lastTimeStamp = Date.now()
            this.Update()
        })

       // Remove
       this.Update()
      // Remove
    } 

Not removing the this.update() from your Awake() method in game.ts causes the mockImplementation to continuously do a range out of bounds as it is, essentially a forever loop.

Cheers for the guide tho! I've only done Game Dev in Unity and.. This is much more hands on.