<!DOCTYPE html> | |
<meta charset="UTF-8"> | |
<title>CSS Values and Units Test: serialization of 'background-position' when specified with calc() function</title> | |
<link rel="author" title="GĂ©rard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/"> | |
<link rel="help" href="https://www.w3.org/TR/css-values-4/#calc-serialize"> | |
<meta name="flags" content=""> | |
<meta content="This test verifies how 6 calc() functions are serialized for 'background-position'." name="assert"> | |
<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.backgroundPosition = specified_value; | |
assert_equals(targetElement.style.backgroundPosition, serialization_expected); | |
}, description); | |
} | |
/* | |
verifySerialization(specified_value, serialization_expected, description) | |
*/ | |
verifySerialization("calc(2px + 3px) calc(4px + 5px)", "calc(5px) calc(9px)", "testing background-position: calc(2px + 3px) calc(4px + 5px)"); | |
verifySerialization("calc(18px - 7px) calc(19px - 7px)", "calc(11px) calc(12px)", "testing background-position: calc(18px - 7px) calc(19px - 7px)"); | |
verifySerialization("calc(4 * 5px) calc(6px * 4)", "calc(20px) calc(24px)", "testing background-position: calc(4 * 5px) calc(6px * 4)"); | |
verifySerialization("calc(100px / 4) calc(119px / 7)", "calc(25px) calc(17px)", "testing background-position: calc(100px / 4) calc(119px / 7)"); | |
/* | |
verifySerialization(specified_value, serialization_expected, description) | |
*/ | |
verifySerialization("calc(6px + 21%) calc(7em + 22%)", "calc(21% + 6px) calc(22% + 7em)", "testing background-position: calc(6px + 21%) calc(7em + 22%)"); | |
verifySerialization("calc(-8px + 23%) calc(-9em + 24%)", "calc(23% - 8px) calc(24% - 9em)", "testing background-position: calc(-8px + 23%) calc(-9em + 24%)"); | |
/* | |
" | |
Sort the terms in the following order: | |
The number, if present | |
The percentage, if present | |
The dimensions, ordered by their units ASCII case-insensitive alphabetically | |
" | |
https://www.w3.org/TR/css-values-4/#math-function-serialize-a-summation | |
*/ | |
} | |
startTesting(); | |
</script> |