at-position-try-parse.html

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This WPT test may be referenced by the following Test IDs:
- /css/css-anchor-position/at-position-try-parse.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>CSS Anchor Positioning Test: parsing of @position-try rules</title>

<link rel="help" href="https://drafts.csswg.org/css-anchor-1/#fallback-rule">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="/css/support/parsing-testcommon.js"></script>

<script>

test_valid_rule('@position-try --foo { }');

test_valid_rule(`@position-try --foo { top: 1px; }`);

// @position-try needs exactly one <dashed-ident> as its name

test_invalid_rule('@position-try { }');

test_invalid_rule('@position-try foo { }');

test_invalid_rule('@position-try --foo --bar { }');

test_invalid_rule('@position-try --foo, --bar { }');

// @position-try only accepts a limited set of properties.

test_valid_rule('@position-try --foo { backround-color: green; }',

                '@position-try --foo { }');

// @position-try accepts only regular style declarations. Other

// contents should be ignored.

test_valid_rule('@position-try --foo { @keyframes bar {} }',

                '@position-try --foo { }');

test_valid_rule('@position-try --foo { @font-face {} }',

                '@position-try --foo { }');

test_valid_rule('@position-try --foo { @media print {} }',

                '@position-try --foo { }');

test_valid_rule('@position-try --foo { & {} }',

                '@position-try --foo { }');

test_valid_rule('@position-try --foo { arbitrary garbage }',

                '@position-try --foo { }');

</script>