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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
| commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
| tree | f435a8308119effd964b339f76abb83a57c29483 /js/xpconnect/tests/mochitest/test_finalizationRegistry.html | |
| parent | Initial commit. (diff) | |
| download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip | |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/xpconnect/tests/mochitest/test_finalizationRegistry.html')
| -rw-r--r-- | js/xpconnect/tests/mochitest/test_finalizationRegistry.html | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/js/xpconnect/tests/mochitest/test_finalizationRegistry.html b/js/xpconnect/tests/mochitest/test_finalizationRegistry.html new file mode 100644 index 0000000000..9d9a798cdf --- /dev/null +++ b/js/xpconnect/tests/mochitest/test_finalizationRegistry.html @@ -0,0 +1,168 @@ +<!DOCTYPE HTML> +<html> + <head> + <meta charset="utf-8"> + <title>Test FinalizationRegistry works in the browser</title> + <script src="/tests/SimpleTest/SimpleTest.js"></script> + <script type="application/javascript"> + let registry1, holdings1; + let registry2, holdings2; + let registry3, holdings3; + let registry4, holdings4; + let registry5, holdings5; + let registry6, holdings6; + let registry7, holdings7; + let registry8, holdings8; + let registry9, holdings9; + + let object4 = {}; + + function go() { + SimpleTest.waitForExplicitFinish(); + + // Registry with no registered objects. + holdings1 = []; + registry1 = new FinalizationRegistry(v => { holdings1.push(v); }); + + // Registry with three registered objects. + holdings2 = []; + registry2 = new FinalizationRegistry(v => { holdings2.push(v); }); + registry2.register({}, 1); + registry2.register({}, 2); + registry2.register({}, 3); + + // Registry with registered object that is then unregistered. + holdings3 = []; + registry3 = new FinalizationRegistry(v => { holdings3.push(v); }); + let token3 = {} + registry3.register({}, 1, token3); + registry3.unregister(token3); + + // Registry with registered object that doesn't die. + holdings4 = []; + registry4 = new FinalizationRegistry(v => { holdings4.push(v); }); + registry4.register(object4, 1); + + // Registry observing cyclic JS data structure. + holdings5 = []; + registry5 = new FinalizationRegistry(v => { holdings5.push(v); }); + registry5.register(makeJSCycle(4), 5); + + // Registry observing DOM object without preserved wrappers. + holdings6 = []; + registry6 = new FinalizationRegistry(v => { holdings6.push(v); }); + registry6.register(document.createElement("div"), 6); + + // Registry observing DOM object with preserved wrappers. + holdings7 = []; + registry7 = new FinalizationRegistry(v => { holdings7.push(v); }); + let object = document.createElement("div"); + object.someProperty = true; + registry7.register(object, 7); + object = null; + + // Registry observing reachable DOM object without preserved wrappers. + holdings8 = []; + registry8 = new FinalizationRegistry(v => { holdings8.push(v); }); + document.body.appendChild(document.createElement("div")); + registry8.register(document.body.lastChild, 8); + + // Registry observing cyclic DOM/JS data structure. + holdings9 = []; + registry9 = new FinalizationRegistry(v => { holdings9.push(v); }); + registry9.register(makeDOMCycle(4), 9); + + // Need to run full GC/CC/GC cycle to collect cyclic garbage through DOM + // and JS heaps. + SpecialPowers.DOMWindowUtils.garbageCollect(); + SpecialPowers.DOMWindowUtils.cycleCollect(); + SpecialPowers.DOMWindowUtils.garbageCollect(); + + // Microtasks are run before cleanup callbacks. + Promise.resolve().then(() => { + is(holdings1.length, 0); + is(holdings2.length, 0); + is(holdings3.length, 0); + is(holdings4.length, 0); + is(holdings5.length, 0); + is(holdings6.length, 0); + is(holdings7.length, 0); + is(holdings8.length, 0); + is(holdings9.length, 0); + }); + + // setTimeout queues a task which will run after cleanup callbacks. + setTimeout(task2, 0); + } + + function task2() { + is(holdings1.length, 0); + + let result = holdings2.sort((a, b) => a - b); + is(result.length, 3); + is(result[0], 1); + is(result[1], 2); + is(result[2], 3); + + is(holdings3.length, 0); + is(holdings4.length, 0); + + is(holdings5.length, 1); + is(holdings5[0], 5); + + is(holdings6.length, 1); + is(holdings6[0], 6); + + is(holdings7.length, 1); + is(holdings7[0], 7); + + is(holdings8.length, 0); + + is(holdings9.length, 1); + is(holdings9[0], 9); + + document.body.removeChild(document.body.lastChild); + + SpecialPowers.DOMWindowUtils.garbageCollect(); + SpecialPowers.DOMWindowUtils.cycleCollect(); + SpecialPowers.DOMWindowUtils.garbageCollect(); + + setTimeout(task3, 0); + } + + function task3() { + is(holdings8.length, 1); + is(holdings8[0], 8); + + SimpleTest.finish(); + } + + function makeJSCycle(size) { + let first = {}; + let current = first; + for (let i = 0; i < size; i++) { + current.next = {}; + current = current.next; + } + current.next = first; + return first; + } + + function makeDOMCycle(size) { + let first = {}; + let current = first; + for (let i = 0; i < size; i++) { + if (i % 2 === 0) { + current.next = document.createElement("div"); + } else { + current.next = {}; + } + current = current.next; + } + current.next = first; + return first; + } + </script> + </head> + <body onload="go()"></body> +</html> |