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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /testing/web-platform/tests/css/css-variables/revert-in-fallback.html
parentInitial commit. (diff)
downloadfirefox-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>
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diff --git a/testing/web-platform/tests/css/css-variables/revert-in-fallback.html b/testing/web-platform/tests/css/css-variables/revert-in-fallback.html
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+++ b/testing/web-platform/tests/css/css-variables/revert-in-fallback.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<title>CSS Custom Properties: Using revert in fallbacks</title>
+<link rel="help" href="https://drafts.csswg.org/css-variables/#substitute-a-var">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+ body.revert {
+ --x:FAIL;
+ margin: -1px;
+ display: grid;
+
+ --x: var(--unknown, revert);
+ margin: var(--unknown, revert);
+ display: var(--unknown, revert);
+ }
+</style>
+<html>
+ <body>
+ <pre id=out></pre>
+ <script>
+ let body_ua_display = getComputedStyle(document.body).display;
+ let body_ua_margin = getComputedStyle(document.body).margin;
+ document.body.classList.add('revert');
+
+ test((t) => {
+ assert_equals(getComputedStyle(document.body).getPropertyValue('--x'), '');
+ }, 'var(--unknown, revert) in custom property');
+
+ test((t) => {
+ assert_equals(getComputedStyle(document.body).getPropertyValue('margin'), body_ua_margin);
+ }, 'var(--unknown, revert-layer) in shorthand');
+
+ test((x) => {
+ assert_equals(getComputedStyle(document.body).getPropertyValue('margin-left'), body_ua_margin);
+ }, 'var(--unknown, revert-layer) in shorthand observed via longhand');
+
+ test((t) => {
+ assert_equals(getComputedStyle(document.body).getPropertyValue('display'), body_ua_display);
+ }, 'var(--unknown, revert-layer) in longhand');
+ </script>
+ </body>
+</html>