Blitz - WPT: line-clamp-invalid.html

wpt / css / css-overflow / parsing / line-clamp-invalid.html

Data from commit:
a50cb89 wpt: run reference-named files which are themselves tests (#836) (2026-09-03)

Subtest	Status	Message
e.style['line-clamp'] = "0" should not set the property value	PASS
e.style['line-clamp'] = "-5" should not set the property value	PASS
e.style['line-clamp'] = "none 2" should not set the property value	PASS
e.style['line-clamp'] = "none no-ellipsis" should not set the property value	PASS
e.style['line-clamp'] = "3 none" should not set the property value	PASS
e.style['line-clamp'] = "3 ellipsis auto" should not set the property value	PASS
e.style['line-clamp'] = "-webkit-legacy" should not set the property value	PASS
e.style['line-clamp'] = "0 -webkit-legacy" should not set the property value	PASS

Enable JavaScript in test iframe

/css/css-overflow/parsing/line-clamp-invalid.html

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Overflow: parsing line-clamp with invalid values</title>
<link rel="help" href="https://drafts.csswg.org/css-overflow-4/#propdef-line-clamp">
<meta name="assert" content="line-clamp supports only the grammar 'none | [<integer [1,∞]> || <‘block-ellipsis’>] -webkit-legacy?'.">
<meta name="assert" content="Zero or negative max-lines integers are invalid.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/parsing-testcommon.js"></script>
</head>
<body>
<script>
test_invalid_value("line-clamp", '0');
test_invalid_value("line-clamp", '-5');

test_invalid_value("line-clamp", 'none 2');
test_invalid_value("line-clamp", 'none no-ellipsis');
test_invalid_value("line-clamp", '3 none');
test_invalid_value("line-clamp", '3 ellipsis auto');

test_invalid_value("line-clamp", '-webkit-legacy');
test_invalid_value("line-clamp", '0 -webkit-legacy');
</script>
</body>
</html>