marko/packages/runtime-class/test/components-browser/fixtures/component-stateful-copy-state-on-write/test.js

var expect = require("chai").expect;

module.exports = function (helpers) {
  var component = helpers.mount(require.resolve("./"), {});

  var oldState = component.state.toJSON();
  component.setState("foo", "bar");

  expect(component.state.toJSON()).to.not.equal(oldState);

  oldState = component.state.toJSON();
  component.setState("hello", "world");
  expect(component.state.toJSON()).to.equal(oldState);
};