Add W3C encrypted-media tests

third_party/WebKit/LayoutTests/imported/wpt/encrypted-media/scripts/keystatuses.js

+function runTest(config,qualifier)
+{
+    var testname = testnamePrefix(qualifier, config.keysystem) + ', temporary, keystatuses';
+
+    var configuration = getSimpleConfigurationForContent(config.content);
+
+    if (config.initDataType && config.initData) {
+        configuration.initDataTypes = [config.initDataType];
+    }
+
+    async_test(function(test)
+    {
+        var mediaKeySession;
+        var initDataType;
+        var initData;
+        var closed = false;
+
+        // Even though key ids are uint8, using printable values so that
+        // they can be verified easily.
+        var key1 = new Uint8Array(config.content.keys[0].kid),
+            key2 = new Uint8Array(config.content.keys[1].kid),
+            key1String = arrayBufferAsString(key1),
+            key2String = arrayBufferAsString(key2);
+
+        function onFailure(error) {
+            forceTestFailureFromPromise(test, error);
+        }
+
+        function processMessage(event)
+        {
+            // No keys added yet.
+            assert_equals(mediaKeySession.keyStatuses.size, 0);
+
+            waitForEventAndRunStep('keystatuseschange', mediaKeySession, processKeyStatusesChange, test);
+
+            // Add keys to session
+            config.messagehandler(event.messageType, event.message).then(function(response) {
+                return event.target.update(response);
+            }).catch(onFailure);
+        }
+
+        function checkKeyStatusFor2Keys()
+        {
+            // Two keys added, so both should show up in |keyStatuses|.
+            assert_equals(mediaKeySession.keyStatuses.size, 2);
+
+            // Check |keyStatuses| for 2 entries.
+            var result = [];
+            for (let item of mediaKeySession.keyStatuses) {
+                result.push({ key: arrayBufferAsString(item[0]), value: item[1] });
+            }
+            function lexicographical( a, b ) { return a < b ? -1 : a === b ? 0 : +1; }
+            function lexicographicalkey( a, b ) { return lexicographical( a.key, b.key ); }
+            var expected1 = [{ key: key1String, value: 'usable'}, { key: key2String, value: 'usable'}].sort( lexicographicalkey );
+            var expected2 = [{ key: key1String, value: 'status-pending'}, { key: key2String, value: 'status-pending'}].sort( lexicographicalkey );
+            assert_in_array(    JSON.stringify(result),
+                                [ JSON.stringify(expected1),JSON.stringify(expected2) ],
+                                 "keystatuses should have the two expected keys with keystatus 'usable' or 'status-pending'");
+
+            // |keyStatuses| must contain both keys.
+            result = [];
+            for (var key of mediaKeySession.keyStatuses.keys()) {
+                result.push(arrayBufferAsString(key));
+            }
+            assert_array_equals(result,
+                                [key1String, key2String].sort( lexicographical ),
+                                "keyStatuses.keys() should return an iterable over the two expected keys");
+
+            // Both values in |mediaKeySession| should be 'usable' or 'status-pending'.
+            result = [];
+            for (var value of mediaKeySession.keyStatuses.values()) {
+                result.push(value);
+            }
+
+            assert_equals( result.length, 2, "keyStatuses.values() should have two elements" );
+            assert_equals( result[0], result[1], "the values in keyStatuses.values() should be equal" );
+            assert_in_array( result[0], [ 'usable', 'status-pending' ] );
+
+            // Check |keyStatuses.entries()|.
+            result = [];
+            for (var entry of mediaKeySession.keyStatuses.entries()) {
+                result.push({ key: arrayBufferAsString(entry[0]), value: entry[1] });
+            }
+            assert_in_array(JSON.stringify(result),
+                            [ JSON.stringify(expected1), JSON.stringify(expected2) ],
+                                 "keyStatuses.entries() should return an iterable over the two expected keys, with keystatus 'usable' or 'status-pending'");
+
+            // forEach() should return both entries.
+            result = [];
+            mediaKeySession.keyStatuses.forEach(function(status, keyId) {
+                result.push({ key: arrayBufferAsString(keyId), value: status });
+            });
+            assert_in_array(JSON.stringify(result),
+                            [ JSON.stringify(expected1), JSON.stringify(expected2) ],
+                                 "keyStatuses.forEach() should iterate over the two expected keys, with keystatus 'usable' or 'status-pending'");
+
+            // has() and get() should return the expected values.
+            assert_true(mediaKeySession.keyStatuses.has(key1), "keyStatuses should have key1");
+            assert_true(mediaKeySession.keyStatuses.has(key2), "keyStatuses should have key2");
+            assert_in_array(mediaKeySession.keyStatuses.get(key1), [ 'usable', 'status-pending' ], "key1 should have status 'usable' or 'status-pending'");
+            assert_in_array(mediaKeySession.keyStatuses.get(key2), [ 'usable', 'status-pending' ], "key2 should have status 'usable' or 'status-pending'");
+
+            // Try some invalid keyIds.
+            var invalid1 = key1.subarray(0, key1.length - 1);
+            assert_false(mediaKeySession.keyStatuses.has(invalid1), "keystatuses should not have invalid key (1)");
+            assert_equals(mediaKeySession.keyStatuses.get(invalid1), undefined, "keystatus value for invalid key should be undefined (1)");
+
+            var invalid2 = key1.subarray(1);
+            assert_false(mediaKeySession.keyStatuses.has(invalid2), "keystatuses should not have invalid key (2)");
+            assert_equals(mediaKeySession.keyStatuses.get(invalid2), undefined, "keystatus value for invalid key should be undefined (2)");
+
+            var invalid3 = new Uint8Array(key1);
+            invalid3[0] += 1;
+            assert_false(mediaKeySession.keyStatuses.has(invalid3), "keystatuses should not have invalid key (3)");
+            assert_equals(mediaKeySession.keyStatuses.get(invalid3), undefined, "keystatus value for invalid key should be undefined (3)");
+
+            var invalid4 = new Uint8Array(key1);
+            invalid4[invalid4.length - 1] -= 1;
+            assert_false(mediaKeySession.keyStatuses.has(invalid4), "keystatuses should not have invalid key (4)");
+            assert_equals(mediaKeySession.keyStatuses.get(invalid4), undefined, "keystatus value for invalid key should be undefined (4)");
+
+            var invalid5 = new Uint8Array(key1.length + 1);
+            invalid5.set(key1, 1);  // First element will be 0.
+            assert_false(mediaKeySession.keyStatuses.has(invalid5), "keystatuses should not have invalid key (5)");
+            assert_equals(mediaKeySession.keyStatuses.get(invalid5), undefined, "keystatus value for invalid key should be undefined (5)");
+
+            var invalid6 = new Uint8Array(key1.length + 1);
+            invalid6.set(key1, 0);  // Last element will be 0.
+            assert_false(mediaKeySession.keyStatuses.has(invalid6), "keystatuses should not have invalid key (6)");
+            assert_equals(mediaKeySession.keyStatuses.get(invalid6), undefined, "keystatus value for invalid key should be undefined (6)");
+        }
+
+        function processKeyStatusesChange(event)
+        {
+            if (!closed)
+            {
+                // The first keystatuseschange (caused by update())
+                // should include both keys.
+                checkKeyStatusFor2Keys();
+
+                mediaKeySession.close().catch(onFailure);
+                closed = true;
+            }
+            else
+            {
+                // The second keystatuseschange (caused by close())
+                // should not have any keys.
+                assert_equals(mediaKeySession.keyStatuses.size, 0);
+                test.done();
+            }
+        }
+
+        navigator.requestMediaKeySystemAccess(config.keysystem, [configuration]).then(function(access) {
+            return access.createMediaKeys();
+        }).then(test.step_func(function(mediaKeys) {
+            mediaKeySession = mediaKeys.createSession();
+
+            // There should be no keys defined yet.
+            //verifyKeyStatuses(mediaKeySession.keyStatuses, { expected: [], unexpected: [key1, key2] });
+
+            waitForEventAndRunStep('message', mediaKeySession, processMessage, test);
+            return mediaKeySession.generateRequest(config.initDataType, config.initData);
+        })).catch(onFailure);
+    }, testname );
+}