diff options
Diffstat (limited to 'testing/web-platform/tests/encrypted-media/util/utils.js')
| -rw-r--r-- | testing/web-platform/tests/encrypted-media/util/utils.js | 293 |
1 files changed, 293 insertions, 0 deletions
diff --git a/testing/web-platform/tests/encrypted-media/util/utils.js b/testing/web-platform/tests/encrypted-media/util/utils.js new file mode 100644 index 0000000000..79f8c7ea6d --- /dev/null +++ b/testing/web-platform/tests/encrypted-media/util/utils.js @@ -0,0 +1,293 @@ +function testnamePrefix( qualifier, keysystem ) { + return ( qualifier || '' ) + ( keysystem === 'org.w3.clearkey' ? keysystem : 'drm' ); +} + +function getInitData(initDataType) { + + // FIXME: This is messed up, because here we are hard coding the key ids for the different content + // that we use for clearkey testing: webm and mp4. For keyids we return the mp4 one + // + // The content used with the DRM today servers has a different key id altogether + + if (initDataType == 'webm') { + return new Uint8Array([ + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F + ]); + } + + if (initDataType == 'cenc') { + return new Uint8Array([ + 0x00, 0x00, 0x00, 0x34, // size + 0x70, 0x73, 0x73, 0x68, // 'pssh' + 0x01, // version = 1 + 0x00, 0x00, 0x00, // flags + 0x10, 0x77, 0xEF, 0xEC, 0xC0, 0xB2, 0x4D, 0x02, // Common SystemID + 0xAC, 0xE3, 0x3C, 0x1E, 0x52, 0xE2, 0xFB, 0x4B, + 0x00, 0x00, 0x00, 0x01, // key count + 0x00, 0x00, 0x00, 0x00, 0x03, 0xd2, 0xfc, 0x41, // key id + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00 // datasize + ]); + } + if (initDataType == 'keyids') { + var keyId = new Uint8Array([ + 0x00, 0x00, 0x00, 0x00, 0x03, 0xd2, 0xfc, 0x41, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 + ]); + return stringToUint8Array(createKeyIDs(keyId)); + } + throw 'initDataType ' + initDataType + ' not supported.'; +} + +function stringToUint8Array(str) +{ + var result = new Uint8Array(str.length); + for(var i = 0; i < str.length; i++) { + result[i] = str.charCodeAt(i); + } + return result; +} +// Encodes |data| into base64url string. There is no '=' padding, and the +// characters '-' and '_' must be used instead of '+' and '/', respectively. +function base64urlEncode(data) { + var result = btoa(String.fromCharCode.apply(null, data)); + return result.replace(/=+$/g, '').replace(/\+/g, "-").replace(/\//g, "_"); +} +// Decode |encoded| using base64url decoding. +function base64urlDecode(encoded) { + return atob(encoded.replace(/\-/g, "+").replace(/\_/g, "/")); +} +// Decode |encoded| using base64 to a Uint8Array +function base64DecodeToUnit8Array(encoded) { + return new Uint8Array( atob( encoded ).split('').map( function(c){return c.charCodeAt(0);} ) ); +} +// Clear Key can also support Key IDs Initialization Data. +// ref: http://w3c.github.io/encrypted-media/keyids-format.html +// Each parameter is expected to be a key id in an Uint8Array. +function createKeyIDs() { + var keyIds = '{"kids":["'; + for (var i = 0; i < arguments.length; i++) { + if (i != 0) keyIds += '","'; + keyIds += base64urlEncode(arguments[i]); + } + keyIds += '"]}'; + return keyIds; +} + +function getSupportedKeySystem() { + var userAgent = navigator.userAgent.toLowerCase(); + var keysystem = undefined; + if (userAgent.indexOf('edge') > -1 ) { + keysystem = 'com.microsoft.playready'; + } else if ( userAgent.indexOf('chrome') > -1 || userAgent.indexOf('firefox') > -1 ) { + keysystem = 'com.widevine.alpha'; + } + return keysystem; +} + +function waitForEventAndRunStep(eventName, element, func, stepTest) +{ + var eventCallback = function(event) { + if (func) + func(event); + } + + element.addEventListener(eventName, stepTest.step_func(eventCallback), true); +} + +function waitForEvent(eventName, element) { + return new Promise(function(resolve) { + element.addEventListener(eventName, resolve, true); + }) +} + +var consoleDiv = null; + +function consoleWrite(text) +{ + if (!consoleDiv && document.body) { + consoleDiv = document.createElement('div'); + document.body.appendChild(consoleDiv); + } + var span = document.createElement('span'); + span.appendChild(document.createTextNode(text)); + span.appendChild(document.createElement('br')); + consoleDiv.appendChild(span); +} + +function forceTestFailureFromPromise(test, error, message) +{ + test.step_func(assert_unreached)(message ? message + ': ' + error.message : error); +} + +// Returns an array of audioCapabilities that includes entries for a set of +// codecs that should cover all user agents. +function getPossibleAudioCapabilities() +{ + return [ + { contentType: 'audio/mp4; codecs="mp4a.40.2"' }, + { contentType: 'audio/webm; codecs="opus"' }, + ]; +} + +// Returns a trivial MediaKeySystemConfiguration that should be accepted, +// possibly as a subset of the specified capabilities, by all user agents. +function getSimpleConfiguration() +{ + return [ { + initDataTypes : [ 'webm', 'cenc', 'keyids' ], + audioCapabilities: getPossibleAudioCapabilities() + } ]; +} + +// Returns a MediaKeySystemConfiguration for |initDataType| that should be +// accepted, possibly as a subset of the specified capabilities, by all +// user agents. +function getSimpleConfigurationForInitDataType(initDataType) +{ + return [ { + initDataTypes: [ initDataType ], + audioCapabilities: getPossibleAudioCapabilities() + } ]; +} + +// Returns a promise that is fulfilled with true if |initDataType| is supported, +// by keysystem or false if not. +function isInitDataTypeSupported(keysystem,initDataType) +{ + return navigator.requestMediaKeySystemAccess( + keysystem, getSimpleConfigurationForInitDataType(initDataType)) + .then(function() { return true; }, function() { return false; }); +} + +function getSupportedInitDataTypes( keysystem ) +{ + return [ 'cenc', 'keyids', 'webm' ].filter( isInitDataTypeSupported.bind( null, keysystem ) ); +} + +function arrayBufferAsString(buffer) +{ + var array = []; + Array.prototype.push.apply( array, new Uint8Array( buffer ) ); + return '0x' + array.map( function( x ) { return x < 16 ? '0'+x.toString(16) : x.toString(16); } ).join(''); +} + +function dumpKeyStatuses(keyStatuses,short) +{ + var userAgent = navigator.userAgent.toLowerCase(); + if (userAgent.indexOf('edge') === -1) { + if (!short) { consoleWrite("for (var entry of keyStatuses)"); } + for (var entry of keyStatuses) { + consoleWrite(arrayBufferAsString(entry[0]) + ": " + entry[1]); + } + if (!short) { + consoleWrite("for (var keyId of keyStatuses.keys())"); + for (var keyId of keyStatuses.keys()) { + consoleWrite(arrayBufferAsString(keyId)); + } + consoleWrite("for (var status of keyStatuses.values())"); + for (var status of keyStatuses.values()) { + consoleWrite(status); + } + consoleWrite("for (var entry of keyStatuses.entries())"); + for (var entry of keyStatuses.entries()) { + consoleWrite(arrayBufferAsString(entry[0]) + ": " + entry[1]); + } + consoleWrite("keyStatuses.forEach()"); + keyStatuses.forEach(function(status, keyId) { + consoleWrite(arrayBufferAsString(keyId) + ": " + status); + }); + } + } else { + if (!short) { consoleWrite("keyStatuses.forEach()"); } + keyStatuses.forEach(function(keyId, status) { + consoleWrite(arrayBufferAsString(keyId) + ": " + status); + }); + } +} + +// Verify that |keyStatuses| contains just the keys in |keys.expected| +// and none of the keys in |keys.unexpected|. All keys should have status +// 'usable'. Example call: verifyKeyStatuses(mediaKeySession.keyStatuses, +// { expected: [key1], unexpected: [key2] }); +function verifyKeyStatuses(keyStatuses, keys) +{ + var expected = keys.expected || []; + var unexpected = keys.unexpected || []; + + // |keyStatuses| should have same size as number of |keys.expected|. + assert_equals(keyStatuses.size, expected.length, "keystatuses should have expected size"); + + // All |keys.expected| should be found. + expected.map(function(key) { + assert_true(keyStatuses.has(key), "keystatuses should have the expected keys"); + assert_equals(keyStatuses.get(key), 'usable', "keystatus value should be 'usable'"); + }); + + // All |keys.unexpected| should not be found. + unexpected.map(function(key) { + assert_false(keyStatuses.has(key), "keystatuses should not have unexpected keys"); + assert_equals(keyStatuses.get(key), undefined, "keystatus for unexpected key should be undefined"); + }); +} + +// This function checks that calling |testCase.func| returns a +// rejected Promise with the error.name equal to +// |testCase.exception|. +function test_exception(testCase /*...*/) { + var func = testCase.func; + var exception = testCase.exception; + var args = Array.prototype.slice.call(arguments, 1); + + // This should really be rewritten in terms of the promise_rejects_* + // testharness utility functions, but that needs the async test involved + // passed in, and we don't have that here. + return func.apply(null, args).then( + function (result) { + assert_unreached(format_value(func)); + }, + function (error) { + assert_not_equals(error.message, "", format_value(func)); + // `exception` is a string name for the error. We can differentiate + // JS Errors from DOMExceptions by checking whether + // window[exception] exists. If it does, expectedError is the name + // of a JS Error subclass and window[exception] is the constructor + // for that subclass. Otherwise it's a name for a DOMException. + if (window[exception]) { + assert_throws_js(window[exception], + () => { throw error; }, + format_value(func)); + } else { + assert_throws_dom(exception, + () => { throw error; }, + format_value(func)); + } + } + ); +} + +// Check that the events sequence (array of strings) matches the pattern (array of either strings, or +// arrays of strings, with the latter representing a possibly repeating sub-sequence) +function checkEventSequence(events,pattern) { + function th(i) { return i + (i < 4 ? ["th", "st", "nd", "rd"][i] : "th"); } + var i = 0, j=0, k=0; + while(i < events.length && j < pattern.length) { + if (!Array.isArray(pattern[j])) { + assert_equals(events[i], pattern[j], "Expected " + th(i+1) + " event to be '" + pattern[j] + "'"); + ++i; + ++j; + } else { + assert_equals(events[i], pattern[j][k], "Expected " + th(i+1) + " event to be '" + pattern[j][k] + "'"); + ++i; + k = (k+1)%pattern[j].length; + if (k === 0 && events[i] !== pattern[j][0]) { + ++j; + } + } + } + assert_equals(i,events.length,"Received more events than expected"); + assert_equals(j,pattern.length,"Expected more events than received"); +} + + |