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

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
229,921 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