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Tests: Import some calc() serialization tests from WPT
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Sam Atkins
Andreas Kling
parent
043e96946f
commit
7b13ccabd4
Notes:
github-actions[bot]
2025-02-27 20:43:59 +00:00
Author: https://github.com/AtkinsSJ
Commit: 7b13ccabd4
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/3719
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<!DOCTYPE html>
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<meta charset="UTF-8">
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<title>CSS Values and Units: serialization of calc() specified values: 19 arithmetical operations (complex)</title>
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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/#calc-serialize">
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<meta content="" name="flags">
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<meta content="This test verifies how 19 arithmetical operations of mixed length units in calc() specified values are serialized. Absolute length units (cm, in, mm, pc, pt, q, px), font-relative length units (ex, em, rem), viewport-percentage length units (vh, vmax, vmin, vw) and percentage units are tested. 12 additions, 6 substractions and 1 division are tested." name="assert">
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<!--
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Issue 1050968: CSS calc and other math function serialization doesn't follow the spec
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https://bugs.chromium.org/p/chromium/issues/detail?id=1050968
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-->
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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.height = specified_value;
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assert_equals(targetElement.style.height, serialization_expected);
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}, description);
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}
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/*
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"
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If nodes contains a number, remove it from nodes and append it to ret.
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If nodes contains a percentage, remove it from nodes and append it to ret.
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If nodes contains any dimensions, remove them from nodes, sort them by their units, ordered ASCII case-insensitively, and append them to ret.
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If nodes still contains any items, append them to ret in the same order.
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"
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https://www.w3.org/TR/css-values-4/#calc-serialize
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*/
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/* 12 Additions */
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verifySerialization("calc(1vh + 2px + 3%)", "calc(3% + 2px + 1vh)", "testing calc(1vh + 2px + 3%)");
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verifySerialization("calc(4px + 1vh)", "calc(4px + 1vh)", "testing calc(4px + 1vh)");
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verifySerialization("calc(5px + 6em + 1vh)", "calc(6em + 5px + 1vh)", "testing calc(5px + 6em + 1vh)");
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verifySerialization("calc(-8px + 9em + 1vh)", "calc(9em - 8px + 1vh)", "testing calc(-8px + 9em + 1vh)");
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verifySerialization("calc(1pc + 1in + 1vh + 10%)", "calc(10% + 112px + 1vh)", "testing calc(1pc + 1in + 1vh + 10%)");
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verifySerialization("calc(25.4q + 1vh + 12%)", "calc(12% + 24px + 1vh)", "testing calc(25.4q + 1vh + 12%)");
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verifySerialization("calc(1em + 1.27cm + 13% + 3em)", "calc(13% + 4em + 48px)", "testing calc(1em + 1.27cm + 13% + 3em)");
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/* verifySerialization(specified_value, serialization_expected, description) */
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verifySerialization("calc(15vw + 16vmin - 17vh)", "calc(-17vh + 16vmin + 15vw)", "testing calc(15vw + 16vmin - 17vh)");
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verifySerialization("calc(9pt + calc(9rem + 10px))", "calc(22px + 9rem)", "testing calc(9pt + calc(9rem + 10px))");
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verifySerialization("calc(5pt + 5em + 4pt + 3em)", "calc(8em + 12px)", "testing calc(5pt + 5em + 4pt + 3em)");
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verifySerialization("calc(4vmin + 0pt + 3pc)", "calc(48px + 4vmin)", "testing calc(4vmin + 0pt + 3pc)");
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verifySerialization("calc(4vmin + 0pt)", "calc(0px + 4vmin)", "testing calc(4vmin + 0pt)");
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/*
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More info on the calc(4vmin + 0pt) sub-test:
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https://github.com/web-platform-tests/wpt/pull/38245#issuecomment-1464215777
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Date: March 10th 2023
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*/
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/* 6 Substractions */
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verifySerialization("calc(100% - 100% + 1em)", "calc(0% + 1em)", "testing calc(100% - 100% + 1em)");
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verifySerialization("calc(100% + 1em - 100%)", "calc(0% + 1em)", "testing calc(100% + 1em - 100%)");
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verifySerialization("calc(1vh - 7px)", "calc(-7px + 1vh)", "testing calc(1vh - 7px)");
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verifySerialization("calc(5ex - 9ex)", "calc(-4ex)", "testing calc(5ex - 9ex)");
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/*
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An out-of-range value inside calc() is not syntactically invalid.
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Inside a calc() function, the resulting summation value can be
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out of range and can be serialized.
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*/
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verifySerialization("calc(-80px + 25.4mm)", "calc(16px)", "testing calc(-80px + 25.4mm)");
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/* verifySerialization(specified_value, serialization_expected, description) */
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/*
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Check distributing multiplication over sums and subs simplification.
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NOTE: If root contains only two children, one of which is a number
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(not a percentage or dimension) and the other of which is a Sum
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whose children are all numeric values, multiply all of the Sum’s
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children by the number, then return the Sum. So, num * (fn + fn)
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should not be simplified.
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*/
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verifySerialization("calc(2 * (10px + 1rem))", "calc(20px + 2rem)", "testing calc(2 * (10px + 1rem))");
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verifySerialization("calc(2 * (10px - 1rem))", "calc(20px - 2rem)", "testing calc(2 * (10px - 1rem))");
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verifySerialization("calc((10px + 1rem) / 2)", "calc(5px + 0.5rem)", "testing calc((10px + 1rem) / 2)");
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verifySerialization(
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"calc(2 * (min(10px, 20%) + max(1rem, 2%)))",
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"calc(2 * (min(10px, 20%) + max(1rem, 2%)))",
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"testing calc(2 * (min(10px, 20%) + max(1rem, 2%)))"
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);
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verifySerialization(
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"calc((min(10px, 20%) + max(1rem, 2%)) * 2)",
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"calc(2 * (min(10px, 20%) + max(1rem, 2%)))",
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"testing calc((min(10px, 20%) + max(1rem, 2%)) * 2)"
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);
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verifySerialization("calc(1vmin - 14%)", "calc(-14% + 1vmin)", "testing calc(1vmin - 14%)");
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/* 1 Multiplication and division */
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verifySerialization("calc(4 * 3px + 4pc / 8)", "calc(20px)", "testing calc(4 * 3px + 4pc / 8)");
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/*
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This calc(4 * 3px + 4pc / 8) test is on purpose last. We want the
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div#target to occupy 20px and to not cause document box height
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to be unneedlessly tall.
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*/
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}
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startTesting();
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</script>
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<!doctype html>
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<meta charset="utf-8">
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<title>CSS Values and Units: calc() serialization.</title>
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<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@mozilla.com">
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<link rel="help" href="https://drafts.csswg.org/css-values/#calc-serialize">
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<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/1731">
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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="content"></div>
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<script>
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test(function() {
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// specified -> expected
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var values = {
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"calc(10px + 1vmin + 10%)": "calc(10% + 10px + 1vmin)",
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"calc(10px + 1vmin)": "calc(10px + 1vmin)",
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"calc(10px + 1em)": "calc(1em + 10px)",
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"calc(1vmin - 10px)": "calc(-10px + 1vmin)",
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"calc(-10px + 1em)": "calc(1em - 10px)",
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"calc(-10px)": "calc(-10px)",
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};
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var content = document.getElementById("content");
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for (var prop in values) {
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content.style.width = '';
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content.style.width = prop;
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assert_equals(content.style.width, values[prop], "Serialization of " + prop);
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}
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}, "calc() serialization")
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</script>
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