discourse/test/javascripts/acceptance/custom-html-set-test.js.es6

import { acceptance } from "helpers/qunit-helpers";
import { setCustomHTML } from 'discourse/helpers/custom-html';
import PreloadStore from 'preload-store';

acceptance("CustomHTML set");

test("has no custom HTML in the top", assert => {
  visit("/static/faq");
  andThen(() => {
    assert.ok(!exists('span.custom-html-test'), 'it has no markup');
  });
});

test("renders set HTML", assert => {
  setCustomHTML('top', '<span class="custom-html-test">HTML</span>');

  visit("/static/faq");
  andThen(() => {
    assert.equal(find('span.custom-html-test').text(), 'HTML', 'it inserted the markup');
  });
});

test("renders preloaded HTML", assert => {
  PreloadStore.store('customHTML', {top: "<span class='cookie'>monster</span>"});

  visit("/static/faq");
  andThen(() => {
    assert.equal(find('span.cookie').text(), 'monster', 'it inserted the markup');
  });
});