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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-syntax/custom-property-rule-ambiguity.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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+<!DOCTYPE html>
+<title>CSS Syntax: Rules that look like custom properties</title>
+<link rel="help" href="https://drafts.csswg.org/css-syntax/#consume-qualified-rule">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<style id=stylesheet1>
+ .a { }
+ --x:hover { } /* Ambiguous "rule" */
+ .b { }
+</style>
+<script>
+ test(() => {
+ let rules = stylesheet1.sheet.rules;
+ assert_equals(rules.length, 2);
+ assert_equals(rules[0].selectorText, '.a');
+ assert_equals(rules[1].selectorText, '.b');
+ }, 'Rule that looks like a custom property declaration is ignored');
+</script>
+
+<!-- https://github.com/w3c/csswg-drafts/issues/9336 -->
+<style id=stylesheet2>
+ .a { }
+ --x:hover { ] } /* Ambiguous "rule" */
+ .b { }
+</style>
+<script>
+ test(() => {
+ let rules = stylesheet2.sheet.rules;
+ assert_equals(rules.length, 2);
+ assert_equals(rules[0].selectorText, '.a');
+ assert_equals(rules[1].selectorText, '.b');
+ }, 'Rule that looks like an invalid custom property declaration is ignored');
+</script>
+
+<style id=stylesheet3>
+ div {
+ .a { }
+ --x:hover { }
+ .b { }
+ }
+</style>
+<script>
+ test(() => {
+ let rules = stylesheet3.sheet.rules;
+ assert_equals(rules.length, 1);
+ assert_equals(rules[0].selectorText, 'div');
+ let div = rules[0];
+ let x = div.style.getPropertyValue('--x');
+ assert_equals(x, 'hover { }\n .b { }');
+ let childRules = div.cssRules;
+ assert_equals(childRules.length, 1);
+ assert_equals(childRules[0].selectorText, '.a');
+ }, 'Nested rule that looks like a custom property declaration');
+</script>
+
+<!-- https://github.com/w3c/csswg-drafts/issues/9336 -->
+
+<style id=stylesheet4>
+ div {
+ .a { }
+ --x:hover { ] }
+ .b { }
+ }
+</style>
+<script>
+ test(() => {
+ let rules = stylesheet4.sheet.rules;
+ assert_equals(rules.length, 1);
+ assert_equals(rules[0].selectorText, 'div');
+ let div = rules[0];
+ // There is no valid --x declaration, because mismatched ] is not allowed
+ // in custom properties.
+ let x = div.style.getPropertyValue('--x');
+ assert_equals(x, '');
+ // We should also not have restarted parsing as a nested style rule,
+ // and instead we should have "consumed the remnants of a bad declaration",
+ // which skips to the next semicolon (or end-of-block).
+ // So in other words, there should be no nested '.b.' child rule here.
+ let childRules = div.cssRules;
+ assert_equals(childRules.length, 1);
+ assert_equals(childRules[0].selectorText, '.a');
+ }, 'Nested rule that looks like an invalid custom property declaration');
+</script>