I can get the entire response log using console.log(res) but can't retrieve access_token from it. The response containing access_token looks like this:

    accept: [Array],
      'content-length': [Array]
    }
  },
  text: '{"access_token":"eyJhbGciOiJS....

I've tried the following:

 .end(  function (res, err, access_token, refresh_token) {
      
       if (err) console.error(err);
       else {
      
      console.log(res)
      expect(res).to.have.status(200);
       
       //console.log(res.body)
       const token = JSON.stringify.access_token;
      // token = res.access_token;
       console.log(token)

      //  let accessToken = await auth.getAccessToken();
      //  console.log(accessToken);
      //  assert(accessToken != null, 'token is null');
       

       //var token = body.access_token
       //console.log(token + "see on token");
      // console.log(`options.access_token: ${options.access_token}`);

This is what I'm getting

UPDATE: By using the below code, parsing and using stringify I'm able to log out the token, but I'm still not able to use the parsed in the next request as header, getting undefined

chai.request(uaaUrl)
.post('/oauth/token')
.set('Content-Type', 'application/x-www-form-urlencoded')
.set('Accept', '*/*',)
   .send(Authuser)   
   .end(function(err, res, body) {      
       const eurotoken = JSON.parse(JSON.stringify(res.body.access_token));
       console.log('parsedd token', eurotoken);
       expect(res).to.have.status(200)
       done();
})




it('./health', (done) => {
    let eurotoken;
      chai.request(euro_url)
          .get('/request-statuses')
          .set('Content-Type', 'application/x-www-form-urlencoded')
          .set('Accept', '*/*',)
          .set('Authorization', `Bearer ${eurotoken}` )
          .end(  function (res, err, body) {  
          if (err) console.error(err);
          else {
            expect(res).to.have.status(200)           
            done();
               }
            done();
        })
        });