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

Posted by Alex Rogers
Alex Rogers
9,844 Points

Having trouble with Chai's "deep equal" method

I thought this would pass, but I feel like I'm missing something.

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

module.exports.clone = clone

1 Answer

Steven Parker
Steven Parker
229,708 Points
Steven Parker
Steven Parker
229,708 Points

While "objectForCloning" is the parameter name in "clone.js", it has not been defined in "clone_spec.js".

To be able to perform the test, you'll need to construct an object that has properties and use it as the basis for comparison.