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https://github.com/servo/servo.git
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64 lines
2.2 KiB
HTML
64 lines
2.2 KiB
HTML
<!doctype html>
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<title>@scope: parsing</title>
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<link rel="help" href="https://drafts.csswg.org/css-cascade-6/#scope-atrule">
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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('@scope (.a)');
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test_valid('@scope (.a + .b)');
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test_valid('@scope (.a:hover)');
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test_valid('@scope (.a:hover, #b, div)');
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test_valid('@scope (:is(div, span))');
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test_valid('@scope (.a) to (.b)');
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test_valid('@scope (.a)to (.b)', '@scope (.a) to (.b)');
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test_valid('@scope (.a) to (.b:hover, #c, div)');
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test_valid('@scope');
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test_valid('@scope (.a) to (&)');
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test_valid('@scope (.a) to (& > &)');
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test_valid('@scope (.a) to (> .b)');
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test_valid('@scope (.a) to (+ .b)');
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test_valid('@scope (.a) to (~ .b)');
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// Forgiving behavior:
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test_valid('@scope (.c <> .d)', '@scope ()');
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test_valid('@scope (.a, .c <> .d)', '@scope (.a)');
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test_valid('@scope (.a <> .b, .c)', '@scope (.c)');
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test_valid('@scope (div::before)', '@scope ()');
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test_valid('@scope (div::after)', '@scope ()');
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test_valid('@scope (slotted(div))', '@scope ()');
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test_valid('@scope (.a) to (div::before)', '@scope (.a)');
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test_invalid('@scope (.a) unknown (.c)');
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test_invalid('@scope (.a) to unknown (.c)');
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test_invalid('@scope (.a) 1px (.c)');
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test_invalid('@scope (.a) to unknown(c)');
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test_invalid('@scope unknown(.a)');
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test_invalid('@scope 1px');
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test_invalid('@scope creep');
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</script>
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