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

William Blair
PLUS
William Blair
Courses Plus Student 3,542 Points
Posted by William Blair
William Blair
Courses Plus Student 3,542 Points

What assertion do I use to check all the keys against all the properties?

How do I check all the keys against the properties?

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.clone().keys, clone.clone().properties).to.deep.equal;
    })
})
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 have the right idea, but the syntax needs some adjustment.

The "deep" equals will check the entire object, so you won't need to be concerned about keys and values separately.

But check the docs again for the proper syntax.

William Blair
William Blair
Courses Plus Student 3,542 Points
William Blair
William Blair
Courses Plus Student 3,542 Points

I also tried 'expect(clone.clone().keys).to.deep.equal(clone.clone().properties);' and 'expect(clone.clone().keys).to.eql(clone.clone().properties);' but no joy.