video.js/test/unit/plugins.js

module("Plugins");

test('Plugin should get initialized and receive options', function(){
  expect(2);

  vjs.plugin('myPlugin1', function(options){
    ok(true, 'Plugin initialized');
    ok(options['test'], 'Option passed through');
  });

  vjs.plugin('myPlugin2', function(options){
    ok(false, 'Plugin initialized and should not have been')
  });

  var player = PlayerTest.makePlayer({
    'plugins': {
      'myPlugin1': {
        'test': true
      }
    }
  });

  player.dispose();
});

test('Plugin should have the option of being initilized outside of player init', function(){
  expect(3)

  vjs.plugin('myPlugin3', function(options){
    ok(true, 'Plugin initialized after player init');
    ok(options['test'], 'Option passed through');
  });

  var player = PlayerTest.makePlayer({});

  ok(player.myPlugin3, 'Plugin has direct access on player instance');

  player.myPlugin3({
    'test': true
  });

  player.dispose();
});

test('Plugin should be able to add a UI component', function(){
  expect(2)

  vjs.plugin('myPlugin4', function(options){
    ok(instanceof this === 'vjs.Player', 'Plugin executed in player scope by default');
    this.addChild('component');
  });

  var player = PlayerTest.makePlayer({});
  player.myPlugin4({
    'test': true
  });

  var comp = player.getChild('component');
  ok(comp, 'Plugin added a component to the player'

  player.dispose();
});