Pomodoro Clock failing Timer tests 1, and 9-15

JavaScript
1

Tell us what’s happening:

Hey everyone, so I’m having a hard time passing the Timer tests for the Pomodoro Clock. From manual testing it seems to work just fine, but it is failing Timer tests 1, and 9-15. I think the error might be residing in this function which controls the timer counting down and switching sessions.

Your code so far

      countDown(){
if(this.state.paused === false){
  clearInterval(this.cycle);
  this.setState({
    paused: true
  })
}
else{
  this.setState({
    paused: false
  });
  
  this.cycle = setInterval(() =>{
    if(this.state.timer === 0){
      this.setState({
        session: (this.state.session === 'Session') ? 'Break' : 'Session',
        timer: (this.state.session === 'Session') ? (this.state.breakLength * 60) : (this.state.sessionLength * 60)
      });
      //this.switchSession();
      this.beep();
    }
    else{
      this.setState({
        timer: this.state.timer - 1
      })
    }
    
  }, 1000)
}

}

Here is a link to my CodePen for the project: https://codepen.io/CyVy/pen/qBbzqqW?editors=0010

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.105 Safari/537.36.

Challenge: Build a Pomodoro Clock

Link to the challenge:
https://www.freecodecamp.org/learn/front-end-libraries/front-end-libraries-projects/build-a-pomodoro-clock