chai-pretty-expect

Will JSON.stringify and pretty-print objects passed as 2nd, 3rd, ... parameter to expect, for nice test output.npm install --save-dev chai-pretty-expect

var chai = require('chai');
chai.use(require('chai-pretty-expect'));

//we are inside describe
var response;

before(function(done){
   return request.post(url, { json:true, body: myObject }, handleResponse); //post invalid json

   function handleResponse(err, res){
       if(err){
           return done(err);
       }
       response = res;
   }
});

it("returns correct statusCode", function() {
   expect(response, response.body).to.have.property("statusCode", 200);
};

This expect will prettyPrint the response.body if statusCode is not 200. This is gives very nice error messages and makes sure that you can debug more easily when tests fail.
So instead of [Object object] you will get nice output of body