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

Liborio Tandurella
Liborio Tandurella
35,711 Points

Not sure about: we expected this to fail but it passed. When the test fails it says the function works fine. How?

I understand I don’t fulfil the expectation the same way as it was intended, the hint doesn’t help, by reading the text I cannot get the meaning

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

describe('clone', function () {
    var clone = require('./clone.js')
    it('some description string', function () {
        var oggetto ={a:true,b:false};
       expect(clone(oggetto)).to.deeply.equal({...oggetto});// YOUR CODE HERE

    })
})
clone.js
function clone (objectForCloning) {
    return Object.assign({}, objectForCloning)
}

module.exports = clone

1 Answer

I noticed a few things. The method should be '.deep.equal' not '.deeply.equal'. Also, since the variable oggetto stores the object inside of it the curly braces aren't necessary when passing it into the equal method, the spread parameter syntax isn't necessary either.

This code should help you pass the challenge:

var expect = require('chai').expect

describe('clone', function () {
    var clone = require('./clone.js')
    it('some description string', function () {
     var oggetto ={a:true,b:false};
       expect(clone(oggetto)).to.deep.equal(oggetto);
    })
})