function runTest(config) { var expectedInitData = []; expectedInitData.push(stringToUint8Array(atob(config.keys[0].initData))); expectedInitData.push(stringToUint8Array(atob(config.keys[1].initData))); // Will get 2 identical events, one for audio, one for video. var expectedEvents = 2; var currentData; async_test(function (test) { var video = config.video, mediaSource, onEncrypted = function (event) { currentData = new Uint8Array(event.initData); assert_equals(event.target, config.video); assert_true(event instanceof window.MediaEncryptedEvent); assert_equals(event.type, 'encrypted'); assert_equals(event.initDataType, 'cenc'); // At this point we do not know if the event is related to audio or video. So check for both expected init data assert_true(checkInitData(currentData, expectedInitData[0]) || checkInitData(currentData, expectedInitData[1])); if (--expectedEvents === 0) { test.done(); } }; waitForEventAndRunStep('encrypted', video, onEncrypted, test); return testmediasource(config).then(test.step_func(function (source) { mediaSource = source; config.video.src = URL.createObjectURL(mediaSource); video.play(); })); }, 'encrypted fired on encrypted media file.' ); } function checkInitData(data, expectedData) { if (data.length !== expectedData.length) { return false; } for (var i = 0; i < data.length; i++) { if (data[i] !== expectedData[i]) { return false; } } return true; }