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87 lines
3.2 KiB
HTML
87 lines
3.2 KiB
HTML
<!doctype html>
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<title>Evaluation of queries</title>
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<link rel="help" href="https://drafts.csswg.org/css-contain-3/#container-rule">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="support/cq-testcommon.js"></script>
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<style>
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#container {
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width: 1px;
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height: 0px;
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container-type: size;
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--applied:false;
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}
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</style>
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<div id=container>
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<div id=inner></div>
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</div>
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<script>
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setup(() => assert_implements_container_queries());
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function test_query(query, expected) {
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test((t) => {
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let style = document.createElement('style');
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t.add_cleanup(() => { style.remove(); });
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style.innerText = `@container ${query} { #inner { --applied:true; } }`;
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let cs = getComputedStyle(inner);
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assert_equals(cs.getPropertyValue('--applied'), 'false');
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document.head.append(style);
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assert_equals(cs.getPropertyValue('--applied'), expected.toString());
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}, query);
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};
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// We don't care about specific features in this file, only higher level
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// evaluation like "and", "or", and so forth. The features "width", "height"
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// and "unknown" are arbitrarily chosen to represent true, false, and
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// unknown values, respectively.
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test_query('(width)', true);
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test_query('(height)', false);
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test_query('(unknown)', false);
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test_query('unknown(width)', false);
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// Nesting in <container-query>:
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test_query('((width))', true);
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test_query('((height))', false);
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test_query('((unknown))', false);
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test_query('((((width))))', true);
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test_query('((((height))))', false);
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test_query('((((unknown))))', false);
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// "not" in <container-query>:
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test_query('(not (width))', false);
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test_query('(not (height))', true);
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test_query('(not (unknown))', false);
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test_query('(not unknown(width))', false);
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// "and" in <container-query>:
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test_query('((width) and (width))', true);
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test_query('((width) and (width) and (width))', true);
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test_query('((height) and (height))', false);
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test_query('((height) and (width) and (width))', false);
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test_query('((width) and (height) and (width))', false);
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test_query('((width) and (width) and (height))', false);
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test_query('((unknown) and (width) and (width))', false);
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test_query('((width) and (unknown) and (width))', false);
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test_query('((width) and (width) and (unknown))', false);
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// "or" in <container-query>:
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test_query('((width) or (width))', true);
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test_query('((width) or (width) or (width))', true);
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test_query('((height) or (height))', false);
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test_query('((height) or (width) or (width))', true);
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test_query('((width) or (height) or (width))', true);
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test_query('((width) or (width) or (height))', true);
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test_query('((unknown) or (width) or (width))', true);
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test_query('((width) or (unknown) or (width))', true);
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test_query('((width) or (width) or (unknown))', true);
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test_query('((unknown) or (height) or (width))', true);
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// Combinations, <container-query>:
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test_query('(not ((width) and (width)))', false);
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test_query('(not ((width) and (height)))', true);
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test_query('((width) and (not ((height) or (width))))', false);
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test_query('((height) or (not ((height) and (width))))', true);
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test_query('((height) or ((height) and (width)))', false);
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</script>
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