| <!DOCTYPE html> | |
| <meta charset="UTF-8"> | |
| <title>CSS Values and Units: serialization of calc() specified values: 19 arithmetical operations (complex)</title> | |
| <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/"> | |
| <link rel="help" href="https://www.w3.org/TR/css-values-4/#calc-serialize"> | |
| <meta content="" name="flags"> | |
| <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"> | |
| <!-- | |
| Issue 1050968: CSS calc and other math function serialization doesn't follow the spec | |
| https://bugs.chromium.org/p/chromium/issues/detail?id=1050968 | |
| --> | |
| <script src="/resources/testharness.js"></script> | |
| <script src="/resources/testharnessreport.js"></script> | |
| <div id="target"></div> | |
| <script> | |
| function startTesting() | |
| { | |
| var targetElement = document.getElementById("target"); | |
| function verifySerialization(specified_value, serialization_expected, description) | |
| { | |
| test(function() | |
| { | |
| targetElement.style.height = specified_value; | |
| assert_equals(targetElement.style.height, serialization_expected); | |
| }, description); | |
| } | |
| /* | |
| " | |
| If nodes contains a number, remove it from nodes and append it to ret. | |
| If nodes contains a percentage, remove it from nodes and append it to ret. | |
| If nodes contains any dimensions, remove them from nodes, sort them by their units, ordered ASCII case-insensitively, and append them to ret. | |
| If nodes still contains any items, append them to ret in the same order. | |
| " | |
| https://www.w3.org/TR/css-values-4/#calc-serialize | |
| */ | |
| /* 12 Additions */ | |
| verifySerialization("calc(1vh + 2px + 3%)", "calc(3% + 2px + 1vh)", "testing calc(1vh + 2px + 3%)"); | |
| verifySerialization("calc(4px + 1vh)", "calc(4px + 1vh)", "testing calc(4px + 1vh)"); | |
| verifySerialization("calc(5px + 6em + 1vh)", "calc(6em + 5px + 1vh)", "testing calc(5px + 6em + 1vh)"); | |
| verifySerialization("calc(-8px + 9em + 1vh)", "calc(9em - 8px + 1vh)", "testing calc(-8px + 9em + 1vh)"); | |
| verifySerialization("calc(1pc + 1in + 1vh + 10%)", "calc(10% + 112px + 1vh)", "testing calc(1pc + 1in + 1vh + 10%)"); | |
| verifySerialization("calc(25.4q + 1vh + 12%)", "calc(12% + 24px + 1vh)", "testing calc(25.4q + 1vh + 12%)"); | |
| verifySerialization("calc(1em + 1.27cm + 13% + 3em)", "calc(13% + 4em + 48px)", "testing calc(1em + 1.27cm + 13% + 3em)"); | |
| /* verifySerialization(specified_value, serialization_expected, description) */ | |
| verifySerialization("calc(15vw + 16vmin - 17vh)", "calc(-17vh + 16vmin + 15vw)", "testing calc(15vw + 16vmin - 17vh)"); | |
| verifySerialization("calc(9pt + calc(9rem + 10px))", "calc(22px + 9rem)", "testing calc(9pt + calc(9rem + 10px))"); | |
| verifySerialization("calc(5pt + 5em + 4pt + 3em)", "calc(8em + 12px)", "testing calc(5pt + 5em + 4pt + 3em)"); | |
| verifySerialization("calc(4vmin + 0pt + 3pc)", "calc(48px + 4vmin)", "testing calc(4vmin + 0pt + 3pc)"); | |
| verifySerialization("calc(4vmin + 0pt)", "calc(0px + 4vmin)", "testing calc(4vmin + 0pt)"); | |
| /* | |
| More info on the calc(4vmin + 0pt) sub-test: | |
| https://github.com/web-platform-tests/wpt/pull/38245#issuecomment-1464215777 | |
| Date: March 10th 2023 | |
| */ | |
| /* 6 Substractions */ | |
| verifySerialization("calc(100% - 100% + 1em)", "calc(0% + 1em)", "testing calc(100% - 100% + 1em)"); | |
| verifySerialization("calc(100% + 1em - 100%)", "calc(0% + 1em)", "testing calc(100% + 1em - 100%)"); | |
| verifySerialization("calc(1vh - 7px)", "calc(-7px + 1vh)", "testing calc(1vh - 7px)"); | |
| verifySerialization("calc(5ex - 9ex)", "calc(-4ex)", "testing calc(5ex - 9ex)"); | |
| /* | |
| An out-of-range value inside calc() is not syntactically invalid. | |
| Inside a calc() function, the resulting summation value can be | |
| out of range and can be serialized. | |
| */ | |
| verifySerialization("calc(-80px + 25.4mm)", "calc(16px)", "testing calc(-80px + 25.4mm)"); | |
| /* verifySerialization(specified_value, serialization_expected, description) */ | |
| /* | |
| Check distributing multiplication over sums and subs simplification. | |
| NOTE: If root contains only two children, one of which is a number | |
| (not a percentage or dimension) and the other of which is a Sum | |
| whose children are all numeric values, multiply all of the Sum’s | |
| children by the number, then return the Sum. So, num * (fn + fn) | |
| should not be simplified. | |
| */ | |
| verifySerialization("calc(2 * (10px + 1rem))", "calc(20px + 2rem)", "testing calc(2 * (10px + 1rem))"); | |
| verifySerialization("calc(2 * (10px - 1rem))", "calc(20px - 2rem)", "testing calc(2 * (10px - 1rem))"); | |
| verifySerialization("calc((10px + 1rem) / 2)", "calc(5px + 0.5rem)", "testing calc((10px + 1rem) / 2)"); | |
| verifySerialization( | |
| "calc(2 * (min(10px, 20%) + max(1rem, 2%)))", | |
| "calc(2 * (min(10px, 20%) + max(1rem, 2%)))", | |
| "testing calc(2 * (min(10px, 20%) + max(1rem, 2%)))" | |
| ); | |
| verifySerialization( | |
| "calc((min(10px, 20%) + max(1rem, 2%)) * 2)", | |
| "calc(2 * (min(10px, 20%) + max(1rem, 2%)))", | |
| "testing calc((min(10px, 20%) + max(1rem, 2%)) * 2)" | |
| ); | |
| verifySerialization("calc(1vmin - 14%)", "calc(-14% + 1vmin)", "testing calc(1vmin - 14%)"); | |
| /* 1 Multiplication and division */ | |
| verifySerialization("calc(4 * 3px + 4pc / 8)", "calc(20px)", "testing calc(4 * 3px + 4pc / 8)"); | |
| /* | |
| This calc(4 * 3px + 4pc / 8) test is on purpose last. We want the | |
| div#target to occupy 20px and to not cause document box height | |
| to be unneedlessly tall. | |
| */ | |
| } | |
| startTesting(); | |
| </script> |