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Test Info: Warnings
- This test has a WPT meta file that expects 5 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /css/css-mixins/mixin-cssom.tentative.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html>
<head>
<title>CSS Mixins: CSSOM support</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<style id=style1>
@mixin --m1() {
color: green;
& {
--foo: bar;
}
}
</style>
<script>
test(() => {
let ss = style1.sheet;
assert_equals(ss.cssRules.length, 1);
assert_equals(ss.cssRules[0].cssText,
`@mixin --m1() {
color: green;
& { --foo: bar; }
}`);
}, 'serialization of @mixin');
</script>
<style id=style2>
#foo {
@apply --m1;
}
</style>
<script>
test(() => {
let ss = style2.sheet;
assert_equals(ss.cssRules[0].cssText,
`#foo {
@apply --m1;
}`);
}, 'serialization of rule with @apply');
</script>
<style id=style3>
@mixin --m2(@contents) {
@contents
}
</style>
<script>
test(() => {
let ss = style3.sheet;
assert_equals(ss.cssRules[0].cssText,
`@mixin --m2(@contents) {
@contents;
}`);
}, 'serialization of @mixin with @contents');
</script>
<style id=style4>
#foo {
color: red;
@apply --m2 { color: green; }
}
</style>
<script>
test(() => {
let ss = style4.sheet;
assert_equals(ss.cssRules[0].cssText,
`#foo {
color: red;
@apply --m2 { color: green; }
}`);
}, 'serialization of rule with @apply and contents argument');
</script>
<style id=style5>
</style>
<script>
test(() => {
assert_throws_dom('SyntaxError', () => {
let ss = style5.sheet;
ss.insertRule('@apply --m1();');
});
}, '@apply is not legal at top level');
</script>
<style id=style6>
@mixin --m3(--arg type(<length>): 1em, --other-arg) {
margin-left: var(--arg);
}
</style>
<script>
test(() => {
let ss = style6.sheet;
assert_equals(ss.cssRules[0].cssText,
`@mixin --m3(--arg <length>: 1em, --other-arg) {
margin-left: var(--arg);
}`);
}, 'serialization of @mixin with parameters');
</script>
</body>
</html>