I'm a noob with Node.js, mocha,chai, sinon and supertest. This is the function I have and need to test. It is in .js file that has

const request = require（'request'）; at the beginning

and exports

module.exports.getPermalink = getPermalink;

module.exports.request = request;

async function getPermalink(event_object) {
   return new Promise(function (resolve, reject) {
       request.post('https://slack.com/api/chat.getPermalink?token=..............................', function (error, response, body) {
           if (error) {
               reject("Can not get permalik to message.");
           } else {
               var bodyObj = JSON.parse(body);
               if (bodyObj.ok == true) {
                   event_object.message_permalink = bodyObj.permalink;
                   event_object.message_permalink = event_object.message_permalink.replace(/\//gm, "\\/");
                   resolve(event_object);
               } else {
                   reject("Can not get parse message permalink.");
               }
           }
       });
   });
}

Is this the right way to test this function (the part that requests from url) and if not what must I do?

describe('getPermalink', function () {
   it('Should return permalink',function(done){
       msg_functions.request.post('https://slack.com/api/chat.getPermalink?token=.............', function (error, response, body) {
        expect(body,JSON).to.contain("true")
        expect(body,JSON).to.contain("http")
        done()
       })
 })
node.js mocha sinon chai supertest