marko/packages/runtime-class/test/components-browser/fixtures/component-extends-EventEmitter/test.js

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

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

  function fooListener() {
    fooEvent = arguments;
    // eslint-disable-next-line @typescript-eslint/no-this-alias
    fooEventThis = this;
  }

  component.on("foo", fooListener);

  component.emit("foo", "a", "b");

  expect(fooEvent[0]).to.equal("a");

  expect(fooEvent[1]).to.equal("b");
  expect(fooEventThis).to.equal(component);

  fooEvent = null;

  component.removeListener("foo", fooListener);

  component.emit("foo", "a", "b");

  expect(fooEvent).to.equal(null);
};