mirror of
https://github.com/servo/servo
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80 lines
2.9 KiB
HTML
80 lines
2.9 KiB
HTML
<!doctype html>
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<meta charset="utf-8">
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<title>CSS.supports() Level 4</title>
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<link rel="help" href="https://www.w3.org/TR/css-conditional-4/#the-css-namespace">
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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>
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test(function() {
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assert_equals(CSS.supports("selector(div)"), true);
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}, "selector() function accepts a selector");
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test(function() {
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assert_equals(CSS.supports("selector(div, div)"), false);
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}, "selector() function doesn't accept a selector list");
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test(function() {
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assert_equals(CSS.supports("selector(::-webkit-unknown-pseudo-element)"), false);
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}, "selector() function rejects unknown webkit pseudo-elements.");
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test(function() {
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assert_equals(CSS.supports("selector(::before)"), true);
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}, "selector() function accepts known pseudo-elements");
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test(function() {
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assert_equals(CSS.supports("selector(div + .c)"), true);
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}, "selector() with simple combinators");
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test(function() {
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assert_equals(CSS.supports("selector(div | .c)"), false);
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}, "selector() with unknown combinators");
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test(function() {
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assert_equals(CSS.supports("selector(:is(:foo))"), false);
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}, "selector() with forgiving :is, 1 arg");
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test(function() {
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assert_equals(CSS.supports("selector(:is(:foo, div))"), false);
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}, "selector() with forgiving :is, multiple args");
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test(function() {
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assert_equals(CSS.supports("selector(:where(:foo))"), false);
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}, "selector() with forgiving :where, 1 arg");
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test(function() {
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assert_equals(CSS.supports("selector(:where(:foo, div))"), false);
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}, "selector() with forgiving :where, multiple args");
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test(function() {
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assert_equals(CSS.supports("selector(:has(:foo))"), false);
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}, "selector() with forgiving :has, 1 arg");
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test(function() {
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assert_equals(CSS.supports("selector(:has(:foo, div))"), false);
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}, "selector() with forgiving :has, multiple args");
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test(function() {
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assert_equals(CSS.supports("selector(:nth-child(2n + 3 of :foo))"), false);
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}, "selector() with unforgiving :nth-child, 1 arg");
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test(function() {
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assert_equals(CSS.supports("selector(:nth-last-child(2n + 3 of :foo))"), false);
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}, "selector() with unforgiving :nth-last-child, 1 arg");
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test(function() {
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assert_equals(CSS.supports("selector(:nth-child(2n + 3 of :foo, div))"), false);
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}, "selector() with unforgiving :nth-child, multiple args");
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test(function() {
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assert_equals(CSS.supports("selector(:nth-last-child(2n + 3 of :foo, div))"), false);
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}, "selector() with unforgiving :nth-last-child, multiple args");
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test(function() {
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assert_equals(CSS.supports("selector(:nth-child(2n 4))"), false);
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}, "selector() with a non-identifier after :nth-child's An+B index");
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test(function() {
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assert_equals(CSS.supports("selector(:nth-last-child(2n 4))"), false);
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}, "selector() with a non-identifier after :nth-last-child's An+B index");
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</script>
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