Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Posted by Blessed Chihota
Blessed Chihota
7,353 Points

Write a test spec that proves the clone function in clone.js returns an object where all properties match.

.

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

describe('clone', function () {
    var clone = require('./clone.js')
    it('some description string', function () {

        // YOUR CODE HERE
      expect(clone(objectForCloning).to.match


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

module.exports = clone

1 Answer

Steven Parker
Steven Parker
231,248 Points
Steven Parker
Steven Parker
231,248 Points

You've got the basic idea, but there's a few implementation issues:

  • the parentheses are unbalanced (two opens but only one close)
  • "objectForCloning" is undefined in clone_spec.js (it's a parameter in clone.js)
  • you'll need to create an appropriate object to test the clone method with
  • the argument to "match" is missing
  • "match" is for testing strings using regular expressions, not for testing objects
  • check the documentation for the proper method, remember you want to confirm all properties