mirror of
https://github.com/servo/servo
synced 2026-05-12 09:56:50 +02:00
38 lines
1.7 KiB
HTML
38 lines
1.7 KiB
HTML
<!doctype html>
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<link rel='help' href='https://drafts.csswg.org/selectors-4/#the-scope-pseudo'>
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<meta name='description' content=':scope should match when context object is a ShadowRoot or a DocumentFragment'>
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<script src='/resources/testharness.js'></script>
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<script src='/resources/testharnessreport.js'></script>
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<div id='shadowHost'></div>
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<script>
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'use strict'
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const shadowHost = document.getElementById("shadowHost");
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const shadowRoot = shadowHost.attachShadow({mode:'open'})
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shadowRoot.appendChild(document.createElement("div"));
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test (() => {
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assert_equals(shadowRoot.querySelectorAll(':scope > div').length, 0, 'should not match in shadow root');
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});
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const documentFragment = document.createDocumentFragment();
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documentFragment.appendChild(document.createElement("div"));
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test(() => {
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assert_equals(documentFragment.querySelectorAll(':scope > div').length, 0, 'should not match in document fragment');
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});
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test(() => {
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assert_equals(shadowRoot.firstChild.querySelector(':scope'), null, 'should return null');
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assert_equals(shadowRoot.firstChild.querySelectorAll(':scope').length, 0, 'should return 0');
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assert_equals(shadowRoot.querySelector(':scope'), null, 'should return null');
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assert_equals(shadowRoot.querySelectorAll(':scope').length, 0, 'should return 0');
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assert_equals(documentFragment.querySelector(':scope'), null, 'should return null');
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assert_equals(documentFragment.querySelectorAll(':scope').length, 0, 'should return 0');
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assert_equals(document.querySelector(':scope'), document.documentElement, 'should return the document element');
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assert_equals(document.querySelectorAll(':scope').length, 1, 'should return 1');
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}, 'querySelector() with ":scope" should return the document element, if present in the subtree');
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</script>
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