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JavaScript JavaScript Unit Testing Behavior Driven Development with Mocha & Chai A Testing Test!

Posted by Nicholas Indri
Nicholas Indri
2,935 Points

Contradictory responses from the Code Challenge

In my code, I wrote two expect statements, one "to.deep.equal" and another "to.not.deep.equal". I commented out one and then the other. Both came back with Bummer. However, I did not change clone.js, so how could both of these Bummer responses be true?

*Bummer: We tried your spec with a version of clone.js that DOESN'T work correctly, expecting the test to fail. But it passed! Better try again!

*Bummer: We tried your spec with a version of clone.js that works correctly, but the specs didn't pass!

clone_spec.js 
var expect = require('chai').expect;

describe('clone', function () {
    var clone = require('./clone.js');
    it('some description string', function () {
        // YOUR CODE HERE
      var objectForCloning = {};
      expect(clone(objectForCloning)).to.deep.equal(objectForCloning);
//      expect(clone(objectForCloning)).to.not.deep.equal(objectForCloning);        
});
clone.js 
function clone (objectForCloning) {
    return Object.assign({}, objectForCloning);
}

module.exports = clone;

1 Answer

Harald N
Harald N
15,843 Points
Harald N
Harald N
15,843 Points

Hi Nicholas.

Try filling the objectForCloning with some key and values. e.g {a:false, b:true}.

Empty object returns false in their internal test even though everything else is working correctly.

Mark your question as answered if this fixed your problem :)