Source code
Revision control
Copy as Markdown
Other Tools
Test Info: Warnings
- This test has a WPT meta file that expects 1 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /css/selectors/is-where-error-recovery.html - WPT Dashboard Interop Dashboard
<!doctype html>
<title>CSS Selectors: :is() and :where() error recovery</title>
<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style id="test-sheet">
random-selector { color: blue; }
</style>
<div id="test-div"></div>
<script>
let rule = document.getElementById("test-sheet").sheet.cssRules[0];
test(function() {
for (let pseudo of ["is", "where"]) {
rule.selectorText = "random-selector";
let invalidSelector = `:${pseudo}(:total-nonsense)`;
rule.selectorText = invalidSelector;
assert_not_equals(
rule.selectorText,
"random-selector",
"Should've parsed",
);
assert_equals(
rule.selectorText,
invalidSelector,
"Should be parsed as-is (but not be considered valid)",
);
assert_equals(document.querySelector(rule.selectorText), null, "Should never match, but should parse");
for (let mixedList of [
`:${pseudo}(:total-nonsense, #test-div)`,
`:${pseudo}(:total-nonsense and-more-stuff, #test-div)`,
`:${pseudo}(weird-token || and-more-stuff, #test-div)`,
]) {
rule.selectorText = mixedList;
assert_equals(
rule.selectorText,
mixedList,
`${mixedList}: Should parse invalid selectors`,
);
let testDiv = document.getElementById("test-div");
assert_equals(document.querySelector(mixedList), testDiv, "Should correctly match");
assert_equals(getComputedStyle(testDiv).color, "rgb(0, 0, 255)", "test element should be blue");
}
}
});
</script>