'then' function is not never getting called by Mocha for assertion checking

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I have written the following test case in Mocha, where the my code uses Q module.

var expect = require("chai").expect;
var utils = require("../Utils.js");
var utils1 = require("../a.js");
var sinon = require('sinon');
var request = require('requestretry');
var querySys = require('../b.js');
var Q = require("q");

describe("Sample", function () {
    var results;
    describe("#get()", function () {
        before(function (done) {
            done();
        });
        it("equal", function () {
            var deferred = Q.defer();
            var responseData = {};
            responseData.code = 200;
            responseData.data = [{a:1,b:2}];
            deferred.resolve(responseData);
            //querySys1 method uses Q promises. That is how I stubbed the response.
            sinon.stub(querySys, 'querySys1').returns(deferred.promise);

            //get function internally calls querySys1. Hence I have stubbed that.
            results = utils1.get(specification);
            results.then(function (data) {
                //Here I do see data coming as {in:1, out:1}. But still the test case is passing when compare it with {}.
                console.log(data);
                //Ideally, it should have failed. But it is passing.
                expect(data).to.be.equal({});
            });
        });
        after(function (done) {
            done();
        })
    });
});

So, if you see, I am trying to do assertion check in results.then part. I have printed the response, which I am receiving. That is coming as expected. But I am intentionally trying to match with wrong value, but test case is still passing.

asked 21 secs ago

Prachi g

62

'then' function is not never getting called by Mocha for assertion checking