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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
| commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
| tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /testing/web-platform/tests/preload/preload-connect-to-doc.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip | |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/preload/preload-connect-to-doc.html')
| -rw-r--r-- | testing/web-platform/tests/preload/preload-connect-to-doc.html | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/testing/web-platform/tests/preload/preload-connect-to-doc.html b/testing/web-platform/tests/preload/preload-connect-to-doc.html new file mode 100644 index 0000000000..ba45f6f3f8 --- /dev/null +++ b/testing/web-platform/tests/preload/preload-connect-to-doc.html @@ -0,0 +1,102 @@ +<!doctype html> +<meta name="timeout" content="long"> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="/common/utils.js"></script> +<script src="/preload/resources/preload_helper.js"></script> +<body> +<script> + +['attached', 'detacted'].forEach(state => + promise_test(async t => { + const href = '/common/square.png'; + const sequence = []; + const name = `with-preload-${state}`; + const loaded = new Promise(resolveLoad => { + customElements.define(name, class extends HTMLElement { + constructor() { + super(); + const shadow = this.attachShadow({ mode: "closed" }); + const link = document.createElement('link'); + link.rel = 'preload'; + link.as = 'image'; + link.href = href; + if (state === 'attached') + shadow.appendChild(link); + sequence.push('constructed'); + link.addEventListener('load', () => { + sequence.push('loaded'); + resolveLoad(); + }); + } + + connectedCallback() { + sequence.push('connected'); + } + }); + }); + + const wrapper = document.createElement(name); + const timeout = 500; + await new Promise(resolve => t.step_timeout(resolve, timeout)); + document.body.appendChild(wrapper); + await Promise.any([loaded, new Promise(resolve => t.step_timeout(() => { + sequence.push('timeout'); + resolve(); + }, timeout))]); + assert_array_equals(sequence, ['constructed', 'connected', state === 'attached' ? 'loaded' : 'timeout']); + }, `preload link should ${state === 'attached' ? 'be fetched when attached' : 'note fetched when detached from'} a shadow DOM`)); + +promise_test(async t => { + const href = '/common/square.png'; + const doc = document.implementation.createHTMLDocument(); + const link = doc.createElement('link'); + link.rel = 'preload'; + link.as = 'image'; + link.href = href; + const loaded = new Promise(resolve => link.addEventListener('load', () => resolve('loaded'))); + const timeoutMillis = 1000; + const timeout = new Promise(resolve => t.step_timeout(() => resolve('timeout'), timeoutMillis)); + doc.head.appendChild(link); + const result = await Promise.any([loaded, timeout]); + assert_equals(result, 'timeout'); +}, 'preload links only work for documents within browsing contexts'); + +promise_test(async t => { + const href = '/common/square.png'; + const fragment = document.createDocumentFragment(); + const link = document.createElement('link'); + link.rel = 'preload'; + link.as = 'image'; + link.href = href; + fragment.appendChild(link); + const timeoutMillis = 1000; + let didLoad = false; + const loaded = new Promise(resolve => link.addEventListener('load', () => { + resolve('loaded'); + didLoad = true; + })); + + const timeout = () => new Promise(resolve => t.step_timeout(() => resolve('timeout'), timeoutMillis)); + await timeout(); + assert_false(didLoad, 'Loaded prematurely, fragment not connected to document yet'); + document.head.appendChild(link); + await Promise.any([loaded, timeout()]); + assert_true(didLoad); +}, 'preload links from DocumentFragment only work when attached'); + +promise_test(async t => { + const href = '/common/square.png'; + const link = document.createElement('link'); + link.rel = 'preload'; + link.as = 'image'; + link.href = href; + const loaded = new Promise(resolve => link.addEventListener('load', () => resolve('loaded'))); + const timeoutMillis = 1000; + const timeout = new Promise(resolve => t.step_timeout(() => resolve('timeout'), timeoutMillis)); + const result = await Promise.any([loaded, timeout]); + assert_equals(result, 'timeout'); +}, 'preload links only work when attached to the document'); + +</script> +</body> |