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<!DOCTYPE html>
<link rel="help" href="https://drafts.csswg.org/css-values-4/#trig-funcs">
<link rel="help" href="https://drafts.csswg.org/css-values-4/#angles">
<link rel="help" href="https://drafts.csswg.org/css-values-4/#calc-serialize">
<link rel="author" title="Apple Inc">
<link rel="author" title="Seokho Song" href="seokho@chromium.org">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../support/serialize-testcommon.js"></script>
<div id=target></div>
<script>
function test_serialization(specified, expected, {prop="transform"}={}) {
// We only test the specified serialization,
// and not the computed or used serialization,
// since we'd need to do that by retrieving the rotation matrix,
// and that isn't perfectly interoperable in corner cases.
// Plus the point of this test is to check the trig functions themselves.
test_specified_serialization(prop, `rotate(${specified})`, `rotate(${expected})`)
}
//TEST CASE | EXPECTED
var test_map = {
"acos(1)" :"calc(0deg)",
"acos(-1)" :"calc(180deg)",
"acos(-1.5)" :"calc(NaN * 1deg)",
"acos(1.5)" :"calc(NaN * 1deg)",
"acos(2)" :"calc(NaN * 1deg)",
"acos(0.5)" :"calc(60deg)",
"acos(1 - 0.5)" :"calc(60deg)",
"acos(0)" :"calc(90deg)",
"asin(1)" :"calc(90deg)",
"asin(-1)" :"calc(-90deg)",
"asin(-1.5)" :"calc(NaN * 1deg)",
"asin(1.5)" :"calc(NaN * 1deg)",
"asin(2)" :"calc(NaN * 1deg)",
"asin(0.5)" :"calc(30deg)",
"asin(1 - 0.5)" :"calc(30deg)",
"asin(0)" :"calc(0deg)",
"acos(pi - pi)" :"calc(90deg)",
"asin(pi - pi + 1)" :"calc(90deg)",
"atan(1)" :"calc(45deg)",
"atan(0.577350269)" :"calc(30deg)",
"atan(0)" :"calc(0deg)",
"atan(infinity)" :"calc(90deg)",
"atan2(37.320508075, 10)" :"calc(75deg)",
"atan2(1s, 1000ms)" :"calc(45deg)",
"atan2(infinity, infinity)" :"calc(45deg)",
"atan2(-infinity, -infinity)" :"calc(-135deg)",
"atan2(infinity, 10)" :"calc(90deg)",
"atan2(10, infinity)" :"calc(0deg)",
"atan2(NaN, 10)" :"calc(NaN * 1deg)",
"atan2(10, NaN)" :"calc(NaN * 1deg)",
"atan2(NaN, NaN)" :"calc(NaN * 1deg)",
};
for (var exp in test_map) {
test_serialization(exp, test_map[exp]);
test_serialization(`calc(${exp})`, test_map[exp]);
}
</script>
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