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LibWeb/CSS: Reject radial-gradient functions with negative size

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Tim Ledbetter 2025-03-11 15:25:00 +00:00 • committed by Sam Atkins
commit 764b80a1cc
Notes: github-actions[bot] 2025-03-14 15:09:31 +00:00
3 changed files with 64 additions and 2 deletions
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34
Tests/LibWeb/Text/input/wpt-import/css/css-backgrounds/parsing/background-image-invalid.html Normal file
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Backgrounds and Borders Module Level 3: parsing background-image with invalid values</title>
<link rel="author" title="Eric Willigers" href="mailto:ericwilligers@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-backgrounds/#background-image">
<link rel="help" href="https://drafts.csswg.org/css-images/#radial-gradients">
<meta name="assert" content="background-image supports only the grammar '<bg-image>#'.">
<meta name="assert" content="Negative radial-gradient radii 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("background-image", "none, auto");
// Negative radii are invalid.
test_invalid_value("background-image", "radial-gradient(circle -10px at center, red, blue)");
test_invalid_value("background-image", "repeating-radial-gradient(-10px at center, red, blue)");
test_invalid_value("background-image", "radial-gradient(ellipse -20px 30px at center, red, blue)");
test_invalid_value("background-image", "repeating-radial-gradient(-20% 30% at center, red, blue)");
test_invalid_value("background-image", "radial-gradient(20px -30px at center, red, blue)");
test_invalid_value("background-image", "repeating-radial-gradient(20px -30px ellipse at center, red, blue)");
test_invalid_value("background-image", "cross-fade(auto blue, 50% red)");
test_invalid_value("background-image", "cross-fade(1px red, green)");
test_invalid_value("background-image", "cross-fade(calc(1% + 1px) red, green)");
test_invalid_value("background-image", "cross-fade(-1% red, green)");
test_invalid_value("background-image", "cross-fade(101% red, green)");
</script>
</body>
</html>