https://github.com/WWBN/AVideo/issues/8137

node_modules/videojs-contrib-quality-levels/test/plugin.test.js

@@ -0,0 +1,44 @@
+import document from 'global/document';
+import QUnit from 'qunit';
+import sinon from 'sinon';
+import videojs from 'video.js';
+import plugin from '../src/plugin';
+
+const Player = videojs.getComponent('Player');
+
+QUnit.test('the environment is sane', function(assert) {
+  assert.strictEqual(typeof Array.isArray, 'function', 'es5 exists');
+  assert.strictEqual(typeof sinon, 'object', 'sinon exists');
+  assert.strictEqual(typeof videojs, 'function', 'videojs exists');
+  assert.strictEqual(typeof plugin, 'function', 'plugin is a function');
+});
+
+QUnit.module('videojs-contrib-quality-levels', {
+
+  beforeEach() {
+
+    // Mock the environment's timers because certain things - particularly
+    // player readiness - are asynchronous in video.js 5. This MUST come
+    // before any player is created; otherwise, timers could get created
+    // with the actual timer methods!
+    this.clock = sinon.useFakeTimers();
+
+    this.fixture = document.getElementById('qunit-fixture');
+    this.video = document.createElement('video');
+    this.fixture.appendChild(this.video);
+    this.player = videojs(this.video);
+  },
+
+  afterEach() {
+    this.player.dispose();
+    this.clock.restore();
+  }
+});
+
+QUnit.test('registers itself with video.js', function(assert) {
+  assert.strictEqual(
+    typeof Player.prototype.qualityLevels,
+    'function',
+    'videojs-contrib-quality-levels plugin was registered'
+  );
+});