38 lines
1.2 KiB
HTML
38 lines
1.2 KiB
HTML
<!doctype html>
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<title>@starting-style: parsing</title>
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<link rel="help" href="https://drafts.csswg.org/css-transitions-2/#at-ruledef-starting-style">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<main id=main></main>
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<script>
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function test_valid(actual, expected) {
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if (expected === undefined)
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expected = actual;
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test(t => {
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t.add_cleanup(() => main.replaceChildren());
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let style = document.createElement('style');
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style.textContent = `${actual}{}`;
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main.append(style);
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assert_equals(style.sheet.rules.length, 1);
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let rule = style.sheet.rules[0];
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assert_equals(rule.cssText, `${expected} {\n}`);
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}, `${actual} is valid`);
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}
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function test_invalid(actual) {
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test(t => {
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t.add_cleanup(() => main.replaceChildren());
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let style = document.createElement('style');
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style.textContent = `${actual}{}`;
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main.append(style);
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assert_equals(style.sheet.rules.length, 0);
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}, `${actual} is not valid`);
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}
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test_valid('@starting-style');
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test_invalid('@starting-style div');
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test_invalid('@starting-style ()');
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test_invalid('@starting-style ( {}');
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test_invalid('@starting-style }');
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</script>
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