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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 /testing/web-platform/tests/css/cssom/CSSStyleSheet-constructable-concat.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 'testing/web-platform/tests/css/cssom/CSSStyleSheet-constructable-concat.html')
| -rw-r--r-- | testing/web-platform/tests/css/cssom/CSSStyleSheet-constructable-concat.html | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/cssom/CSSStyleSheet-constructable-concat.html b/testing/web-platform/tests/css/cssom/CSSStyleSheet-constructable-concat.html new file mode 100644 index 0000000000..87ba6bfea5 --- /dev/null +++ b/testing/web-platform/tests/css/cssom/CSSStyleSheet-constructable-concat.html @@ -0,0 +1,34 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<meta charset="utf-8"> +<title>Adoptedstylesheets.concat should work when starting empty</title> +<link rel="author" href="mailto:masonf@chromium.org"> +<link rel="help" href="https://drafts.csswg.org/cssom/#extensions-to-the-document-or-shadow-root-interface"> +<link rel="match" href="CSSStyleSheet-constructable-concat-ref.html"> + +<span>This should be green</span> +<div id=host></div> +<pre id=tests>Tests: +</pre> + +<script> +function assert_equals(val1,val2) { + const t = val1 === val2 ? 'PASS' : `FAIL! ${val1} !== ${val2}`; + tests.appendChild(document.createTextNode(`${t}\n`)); +} +window.onload = () => { + const sheet = new CSSStyleSheet(); + sheet.replaceSync('span {background-color:green;}'); + assert_equals(document.adoptedStyleSheets.length,0); + document.adoptedStyleSheets = document.adoptedStyleSheets.concat([sheet]); + assert_equals(document.adoptedStyleSheets.length,1); + + const host = document.getElementById('host'); + const shadow = host.attachShadow({mode: 'open'}); + shadow.innerHTML = '<span>This should be green</span>'; + assert_equals(shadow.adoptedStyleSheets.length,0); + shadow.adoptedStyleSheets = shadow.adoptedStyleSheets.concat([sheet]); + assert_equals(shadow.adoptedStyleSheets.length,1); + document.documentElement.classList.remove("reftest-wait"); +}; +</script> |