web-locks-worklet-modifier-method.tentative.https.sub.html (2924B)
1 <!doctype html> 2 <script src="/resources/testharness.js"></script> 3 <script src="/resources/testharnessreport.js"></script> 4 <script src="/common/utils.js"></script> 5 <script src="/shared-storage/resources/util.js"></script> 6 <script src="/fenced-frame/resources/utils.js"></script> 7 8 <body> 9 <script> 10 'use strict'; 11 12 promise_test(async t => { 13 let worklet1 = await sharedStorage.createWorklet('resources/simple-module.js'); 14 let worklet2 = await sharedStorage.createWorklet('resources/simple-module.js'); 15 16 const ancestor_key1 = token(); 17 let url1_0 = generateURL("/shared-storage/resources/frame0.html", 18 [ancestor_key1]); 19 let url1_1 = generateURL("/shared-storage/resources/frame1.html", 20 [ancestor_key1]); 21 22 const ancestor_key2 = token(); 23 let url2_0 = generateURL("/shared-storage/resources/frame0.html", 24 [ancestor_key2]); 25 let url2_1 = generateURL("/shared-storage/resources/frame1.html", 26 [ancestor_key2]); 27 28 // Invoke `selectURL()` to perform the following steps: 29 // 1. Acquires the lock. 30 // 2. Reads the current value at the given key. 31 // 3. Waits for 500ms. 32 // 4. Sets the shared storage value to the read value appended with the given letter. 33 // 5. Releases the lock. 34 // 35 // In parallel, invoke another `selectURL()`, which subsequently invokes 36 // `sharedStorage.append()` with the same lock and the same letter to append. 37 // 38 // Expected behavior: After both of them finish, the value at the given key 39 // should contain the letter repeated twice. 40 // 41 // Note: This test remains valid even if the `append()` call happens outside 42 // the critical section protected by the lock within the worklet. The test 43 // effectively demonstrates mutual exclusion as long as there's a reasonable 44 // chance for `append()` to occur while the worklet is still running. 45 let select_url_result1 = await worklet1.selectURL( 46 "get-wait-set-within-lock", 47 [{url: url1_0}, {url: url1_1}], 48 {data: {'key': 'key', 49 'lock_name': 'lock1', 50 'append_letter': 'a'}, 51 resolveToConfig: true}); 52 53 let select_url_result2 = await worklet2.selectURL( 54 "append-with-lock-option", 55 [{url: url2_0}, {url: url2_1}], 56 {data: {'key': 'key', 57 'lock_name': 'lock1', 58 'append_letter': 'a'}, 59 resolveToConfig: true}); 60 61 attachFencedFrame(select_url_result1, 'opaque-ads'); 62 const result1 = await nextValueFromServer(ancestor_key1); 63 assert_equals(result1, "frame1_loaded"); 64 65 attachFencedFrame(select_url_result2, 'opaque-ads'); 66 const result2 = await nextValueFromServer(ancestor_key2); 67 assert_equals(result2, "frame1_loaded"); 68 69 await verifyKeyValueForOrigin('key', 'aa', location.origin); 70 71 await deleteKeyForOrigin('key', location.origin); 72 }, 'Test for withLock option in a SharedStorageWorklet context'); 73 74 </script> 75 </body>