@financial-times/o-ads/test/qunit/setup.test.js

This package contains the core functionality used by the FT in providing ads across all of its sites. This includes ft.com, howtospendit.com, ftadviser.com and other specialist titles.

/* globals QUnit: false, sinon: false, $: false, jQuery: false */
'use strict'; //eslint-disable-line

QUnit.module('Test setup');
QUnit.test('Global Dependencies', function (assert) {
  assert.ok(sinon, 'sinon is available');
  assert.ok($ && jQuery, 'jQuery is available');
});
QUnit.test('Local Dependencies', function (assert) {
  this.ads.unique = false; // this isn't part of this test but is used in the next test

  assert.ok(this.ads, 'The ads module is available');
});
QUnit.test('Tests are atomic', function (assert) {
  assert.strictEqual(this.ads.unique, undefined, 'The ads module is a unique instance');
});
QUnit.test('The fixtures container is available and we can append HTML', function (assert) {
  this.fixturesContainer.get().insertAdjacentHTML('beforeend', '<div id="something-something"></div>');
  assert.ok($('#something-something').size(), 'the element was attached to the container');
});
QUnit.test('The fixtures container emptied after each test', function (assert) {
  assert.equal($('#something-something').size(), 0, 'the element is gone');
});
QUnit.test('Basic Sinon methods are available via this', function (assert) {
  assert.ok(this.spy, 'Sinon spy');
  assert.ok(this.stub, 'Sinon stub');
  assert.ok(this.mock, 'Sinon mock');
});
QUnit.test('Sinon fake timers are available', function (assert) {
  const clock = this.date(1);
  assert.equal(new Date().valueOf(), 1, 'the date object is now mocked');
  clock.tick(1);
  assert.equal(new Date().valueOf(), 2, 'a tick of the clock now pushes the date forward');
});
const _XMLHttpRequest = window.XMLHttpRequest;
QUnit.test('Sinon fake server is available', function (assert) {
  this.server();
  assert.notEqual(window.XMLHttpRequest, _XMLHttpRequest, 'XMLHttpRequest is mocked');
});
QUnit.test('Sinon fake server is restored automatically', function (assert) {
  assert.equal(window.XMLHttpRequest, _XMLHttpRequest, 'XMLHttpRequest is not mocked');
});
QUnit.test('Meta data mock adds tags to the page', function (assert) {
  this.meta({
    basic: 'tag',
    complex: {
      content: 'tag',
      with: 'attribute'
    }
  });
  assert.ok($('meta[name="basic"][content="tag"]').size(), 'basic tag');
  assert.ok($('meta[name="complex"][content="tag"][with="attribute"]').size(), 'complex tag');
});
QUnit.test('Meta data mocks are removed after the test', function (assert) {
  assert.equal($('meta[name="basic"][content="tag"').size(), 0, 'basic tag gone');
  assert.equal($('meta[name="complex"][content="tag"][with="attribute"]').size(), 0, 'complex tag gone');
});
const _localStorage = window.localStorage;
QUnit.test('localStorage mocking', function (assert) {
  const localMocked = this.localStorage({
    Brandon: 'Bernier'
  });

  if (localMocked) {
    assert.notEqual(window.localStorage, _localStorage, 'localStorage is mocked');
    assert.equal(localStorage.getItem('Brandon'), 'Bernier', 'Can retieve an item from mock data');
    localStorage.setItem('Papa', 'Bear');
    assert.equal(localStorage.getItem('Papa'), 'Bear', 'Can set and retieve new items');
    localStorage.removeItem('Papa');
    assert.strictEqual(localStorage.getItem('Papa'), null, 'Can delete an item from mock data');
    assert.ok(localStorage.getItem.calledWith('Brandon'), 'getItem Stub can be used');
    assert.ok(localStorage.setItem.calledWith('Papa', 'Bear'), 'setItem stub can be used');
    assert.ok(localStorage.removeItem.calledWith('Papa'), 'removeItem stub can be used');
  } else {
    assert.ok(true, 'localStorage is unavailabe or unmockable in this browser');
    this.warn('local storage cannot be mocked in this browser!');
  }
});
QUnit.test('localStorage is restored after test', function (assert) {
  assert.equal(window.localStorage, _localStorage, 'localStorage is not mocked');
  assert.strictEqual(localStorage.getItem('Brandon'), null, 'Mock data is not in localStorage');
});