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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
| commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
| tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/custom-elements/CustomElementRegistry-constructor-and-callbacks-are-held-strongly.html | |
| parent | Initial commit. (diff) | |
| download | firefox-upstream.tar.xz firefox-upstream.zip | |
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/custom-elements/CustomElementRegistry-constructor-and-callbacks-are-held-strongly.html')
| -rw-r--r-- | testing/web-platform/tests/custom-elements/CustomElementRegistry-constructor-and-callbacks-are-held-strongly.html | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/testing/web-platform/tests/custom-elements/CustomElementRegistry-constructor-and-callbacks-are-held-strongly.html b/testing/web-platform/tests/custom-elements/CustomElementRegistry-constructor-and-callbacks-are-held-strongly.html new file mode 100644 index 0000000000..fb6af32fe1 --- /dev/null +++ b/testing/web-platform/tests/custom-elements/CustomElementRegistry-constructor-and-callbacks-are-held-strongly.html @@ -0,0 +1,84 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>CustomElementInterface holds constructors and callbacks strongly, preventing them from being GCed if there are no other references</title> +<link rel="help" href="https://html.spec.whatwg.org/multipage/custom-elements.html#concept-custom-element-definition-lifecycle-callbacks"> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="/common/gc.js"></script> + +<body> +<div id="customElementsRoot"></div> +<iframe id="emptyIframe" srcdoc></iframe> +<script> +"use strict"; + +const tagNames = [...new Array(100)].map((_, i) => `x-foo${i}`); +const delay = (t, ms) => new Promise(resolve => { t.step_timeout(resolve, ms); }); + +const connectedCallbackCalls = new Set; +const disconnectedCallbackCalls = new Set; +const attributeChangedCallbackCalls = new Set; +const adoptedCallbackCalls = new Set; + +for (const tagName of tagNames) { + const constructor = class extends HTMLElement { + connectedCallback() { connectedCallbackCalls.add(tagName); } + disconnectedCallback() { disconnectedCallbackCalls.add(tagName); } + attributeChangedCallback() { attributeChangedCallbackCalls.add(tagName); } + adoptedCallback() { adoptedCallbackCalls.add(tagName); } + }; + + constructor.observedAttributes = ["foo"]; + + customElements.define(tagName, constructor); + + delete constructor.prototype.connectedCallback; + delete constructor.prototype.disconnectedCallback; + delete constructor.prototype.attributeChangedCallback; + delete constructor.prototype.adoptedCallback; +} + +promise_test(async t => { + await garbageCollect(); + + assert_true(tagNames.every(tagName => typeof customElements.get(tagName) === "function")); +}, "constructor"); + +promise_test(async t => { + await garbageCollect(); + for (const tagName of tagNames) { + customElementsRoot.append(document.createElement(tagName)); + } + + await delay(t, 10); + assert_equals(connectedCallbackCalls.size, tagNames.length); +}, "connectedCallback"); + +promise_test(async t => { + await garbageCollect(); + for (const xFoo of customElementsRoot.children) { + xFoo.setAttribute("foo", "bar"); + } + + await delay(t, 10); + assert_equals(attributeChangedCallbackCalls.size, tagNames.length); +}, "attributeChangedCallback"); + +promise_test(async t => { + await garbageCollect(); + customElementsRoot.innerHTML = ""; + + await delay(t, 10); + assert_equals(disconnectedCallbackCalls.size, tagNames.length); +}, "disconnectedCallback"); + +promise_test(async t => { + await garbageCollect(); + for (const tagName of tagNames) { + emptyIframe.contentDocument.adoptNode(document.createElement(tagName)); + } + + await delay(t, 10); + assert_equals(adoptedCallbackCalls.size, tagNames.length); +}, "adoptedCallback"); +</script> |