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LibWeb: Don't crash on non-finite values in CSS clamp() function

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Stops a WPT test from crashing, giving us 29 new subtest passes. :^)
This commit is contained in:
Andreas Kling
2025-04-24 12:08:58 +02:00
committed by Andreas Kling
parent 2f76b24b89
commit 1772adb600
Notes: github-actions[bot] 2025-04-24 16:28:32 +00:00 
Author: https://github.com/awesomekling
Commit: https://github.com/LadybirdBrowser/ladybird/commit/1772adb6002
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/4455
Reviewed-by: https://github.com/AtkinsSJ ✅
4 changed files with 210 additions and 1 deletions
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67
Tests/LibWeb/Text/input/wpt-import/css/css-values/calc-infinity-nan-serialize-length.html Normal file
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<!DOCTYPE HTML>
<title>Infinity and NaN: calc() serialization for length values.</title>
<link rel="author" title="Seokho Song" href="mailto:0xdevssh@gmail.com">
<link rel="help" href="https://drafts.csswg.org/css-values/#calc-type-checking">
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="../support/serialize-testcommon.js"></script>
<div id="target"></div>
<div id="log"></div>
<script>
function test_serialization(t,s, {prop="width"}={}) {
test_specified_serialization(prop, t, s)
}
//TEST CASE | EXPECTED
var test_map = {
"1px * NaN" :"calc(NaN * 1px)",
"1% * NaN" :"calc(NaN * 1%)",
"1in * NaN" :"calc(NaN * 1px)",
"1cm * NaN" :"calc(NaN * 1px)",
"1mm * NaN" :"calc(NaN * 1px)",
"1q * NaN" :"calc(NaN * 1px)",
"1pt * NaN" :"calc(NaN * 1px)",
"1pc * NaN" :"calc(NaN * 1px)",
"1px * nan" :"calc(NaN * 1px)",
"1px * infinity / infinity" :"calc(NaN * 1px)",
"1px * 0 * infinity" :"calc(NaN * 1px)",
"1px * (infinity + -infinity)" :"calc(NaN * 1px)",
"1px * (-infinity + infinity)" :"calc(NaN * 1px)",
"1px * (infinity - infinity)" :"calc(NaN * 1px)",
"1px * infinity" :"calc(infinity * 1px)",
"1px * -infinity" :"calc(-infinity * 1px)",
"1% * infinity" :"calc(infinity * 1%)",
"1% * -infinity" :"calc(-infinity * 1%)",
"1px * iNFinIty" :"calc(infinity * 1px)",
"1px * (infinity + infinity)" :"calc(infinity * 1px)",
"1px * (-infinity + -infinity)" :"calc(-infinity * 1px)",
"1px * 1/infinity" :"calc(0px)",
"1px * infinity * infinity" :"calc(infinity * 1px)",
"1px * -infinity * -infinity" :"calc(infinity * 1px)",
"1 * max(INFinity*3px, 0px)" :"calc(infinity * 1px)",
"1 * min(inFInity*4px, 0px)" :"calc(0px)",
"1 * max(nAn*2px, 0px)" :"calc(NaN * 1px)",
"1 * min(nan*3px, 0px)" :"calc(NaN * 1px)",
"1 * clamp(-INFINITY*20px, 0px, infiniTY*10px)" :"calc(0px)",
"1px * max(NaN, min(0,10))" :"calc(NaN * 1px)",
"1px * clamp(NaN, 0, 10)" :"calc(NaN * 1px)",
"1px * max(0, min(10, NaN))" :"calc(NaN * 1px)",
"1px * clamp(0, 10, NaN)" :"calc(NaN * 1px)",
"1px * max(0, min(NaN, 10))" :"calc(NaN * 1px)",
"1px * clamp(0, NaN, 10)" :"calc(NaN * 1px)",
"1px * clamp(-Infinity, 0, infinity)" :"calc(0px)",
"1px * clamp(-inFinity, infinity, 10)" :"calc(10px)",
"1 * min(NaN * 1pt, NaN * 1cm)" :"calc(NaN * 1px)",
"1 * max(NaN * 1cm, NaN * 2Q)" :"calc(NaN * 1px)",
"1 * min(NaN * 2px, NaN * 4em)" :"calc(NaN * 1px)",
"1 * clamp(NaN * 2em, NaN * 4px, NaN * 8pt)" :"clamp(NaN * 1em, NaN * 1px, NaN * 1px)",
};
for (var exp in test_map) {
test_serialization("calc("+exp+")", test_map[exp]);
}
</script>