var expect = require('chai').expect; module.exports = function(helpers) { var states = { original: { heading: 'original colors', message: 'These are primary colors!', colors: ['red', 'green', 'blue'] }, new: { heading: 'new colors', colors: ['orange', 'yellow', 'purple'] } }; var widget = helpers.mount(require('./index'), states.original); expect(widget.state.heading).to.equal(states.original.heading); expect(widget.state.message).to.equal(states.original.message); expect(widget.state.colors).to.deep.equal(states.original.colors); widget.replaceState(states.new); widget.update(); expect(widget.state.heading).to.equal(states.new.heading); expect(widget.state.message).to.equal(states.new.message); // undefined expect(widget.state.colors).to.deep.equal(states.new.colors); };