var expect = require("chai").expect; module.exports = function (helpers) { var counter = 0; var component = helpers.mount(require.resolve("./index"), { counter: counter, }); expect(component.el.querySelector(".unpreserved-counter").innerHTML).to.equal( "0", ); expect(component.getEl("preserve").getAttribute("data-counter")).to.equal( "0", ); expect(component.el.querySelector(".preserved-counter").innerHTML).to.equal( "0", ); component.input = { counter: ++counter, }; component.update(); expect(component.el.querySelector(".unpreserved-counter").innerHTML).to.equal( "1", ); expect(component.getEl("preserve").getAttribute("data-counter")).to.equal( "0", ); expect(component.el.querySelector(".preserved-counter").innerHTML).to.equal( "0", ); };