QUnit.test( 'basics', function( assert ) { 'use strict'; var elem = document.querySelector('#basics'); var images = elem.querySelectorAll('img'); var done = assert.async( 3 + images.length ); var imgLoader = new imagesLoaded( elem, function( obj ) { assert.ok( true, 'callback function triggered' ); assert.equal( imgLoader, obj, 'callback argument and instance match' ); done(); }); imgLoader.on( 'done', function() { assert.ok( true, 'done event triggered' ); done(); }); imgLoader.on( 'always', function() { assert.ok( true, 'always event triggered' ); done(); }); imgLoader.on( 'progress', function( loader, image ) { assert.ok( image.isLoaded, 'image is loaded'); done(); }); });