forked from mirrors/gecko-dev
5c5bd160c8
Automatic update from web-platform-tests Make the CSS math operation nested after distributing a multiplication over a sum Due to the fact that CSS math trees are binary in Blink, when we distribute a multiplication over a sum: A - B * (C + D) We don't know about the minus: A - ..., as B * (C + D) is the right-hand side of the operation A - .... So, when we distribute B, we end up with A - B * C + B * D, which is incorrect. Instead, leave the distributed operation nested, e.g.: A - (B * C + B * D). Note: The serialization code will not add unneeded parentheses: (A + B) -> A + B. Fixed: 1499774 Change-Id: If3158af7b2310b48ef6d5e2b0f3f8ecd37f0eb79 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5009859 Reviewed-by: Steinar H Gunderson <sesse@chromium.org> Commit-Queue: Daniil Sakhapov <sakhapov@chromium.org> Cr-Commit-Position: refs/heads/main@{#1221554} -- wpt-commits: a8e646bacc64d2d1402ad1a9601285a194f127ba wpt-pr: 42992
88 lines
2.8 KiB
HTML
88 lines
2.8 KiB
HTML
<!DOCTYPE html>
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<meta charset="UTF-8">
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<title>CSS Values and Units Test: serialization of summation involving nested calc()</title>
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<!--
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This test is an adapted version of the portion of the original test
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https://chromium.googlesource.com/chromium/src/+/c825d655f6aaf73484f9d56e9012793f5b9668cc/third_party/WebKit/LayoutTests/css3/calc/calc-nesting.html
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which required using property-parsing-test.js
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-->
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<link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
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<link rel="help" href="https://www.w3.org/TR/css-values-4/#math-function-simplify-an-expression">
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<meta content="This test checks that how a summation involving one or more nested calc() is performed and serialized." name="assert">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<div id="target"></div>
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<script>
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function startTesting()
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{
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var targetElement = document.getElementById("target");
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function verifySerialization(specified_value, serialization_expected, description)
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{
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test(function()
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{
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targetElement.style.left = specified_value;
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assert_equals(targetElement.style.left, serialization_expected);
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}, description);
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}
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verifySerialization("calc(20px + calc(80px))", "calc(100px)", "testing calc(20px + calc(80px))");
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verifySerialization("calc(calc(100px))", "calc(100px)", "testing calc(calc(100px))");
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verifySerialization("calc(calc(2) * calc(50px)", "calc(100px)", "testing calc(calc(2) * calc(50px)");
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verifySerialization("calc(calc(150px*2/3)", "calc(100px)", "testing calc(calc(150px*2/3)");
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verifySerialization("calc(calc(2 * calc(calc(3)) + 4) * 10px)", "calc(100px)", "testing calc(calc(2 * calc(calc(3)) + 4) * 10px)");
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verifySerialization("calc(50px + calc(40%))", "calc(40% + 50px)", "testing calc(50px + calc(40%))");
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verifySerialization("calc(calc(300px - 1 * (0% + 100px)))", "calc(0% + 200px)", "testing calc(calc(300px - 1 * (0% + 100px)))");
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verifySerialization("calc(calc(300px - (0% + 100px) * 1))", "calc(0% + 200px)", "testing calc(calc(300px - (0% + 100px) * 1))");
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verifySerialization("calc(calc(300px - (0% + 100px) * -1))", "calc(0% + 400px)", "testing calc(calc(300px - (0% + 100px) * -1))");
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verifySerialization("calc(calc(300px - -1 * (0% + 100px)))", "calc(0% + 400px)", "testing calc(calc(300px - -1 * (0% + 100px)))");
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verifySerialization("calc(calc(300px - 1 * (0% - 100px)))", "calc(0% + 400px)", "testing calc(calc(300px - 1 * (0% - 100px)))");
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/*
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"
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Sort the terms in the following order:
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The number, if present
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The percentage, if present
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The dimensions, ordered by their units ASCII case-insensitive alphabetically
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"
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https://www.w3.org/TR/css-values-4/#math-function-serialize-a-summation
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*/
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}
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startTesting();
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</script>
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