marko/packages/runtime-class/test/components-browser/fixtures/component-subscribeTo-destroy-subscriber/test.js

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

module.exports = function (helpers) {
  var component1 = helpers.mount(require.resolve("./index"), {});
  var component2 = helpers.mount(require.resolve("./index"), {});

  var fooEvent = null;
  var fooEventThis = null;

  component1.subscribeTo(component2).on("foo", function fooListener() {
    fooEvent = arguments;
    // eslint-disable-next-line @typescript-eslint/no-this-alias
    fooEventThis = this;
  });

  component2.emit("foo", "a", "b");

  expect(fooEvent[0]).to.equal("a");
  expect(fooEvent[1]).to.equal("b");
  expect(fooEventThis).to.equal(component2);

  fooEvent = null;

  component1.destroy();

  component2.emit("foo", "a", "b");

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