Tests: Import a couple of CSS nesting tests from WPT

This is partly to check that importing ref tests works, and that I
didn't break the text-test import.
This commit is contained in:
Sam Atkins 2024-11-05 16:27:08 +00:00 committed by Tim Ledbetter
parent 7a5b38d577
commit f5d67cefc1
Notes: github-actions[bot] 2024-11-05 17:59:20 +00:00
4 changed files with 353 additions and 0 deletions

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<!DOCTYPE html>
<title>Basic nesting</title>
<link rel="author" title="Adam Argyle" href="mailto:argyle@google.com">
<link rel="help" href="https://drafts.csswg.org/css-nesting-1/">
<style>
.test {
background-color: green;
width: 30px;
height: 30px;
display: grid;
}
body * + * {
margin-top: 8px;
}
</style>
<body>
<p>Tests pass if <strong>block is green</strong></p>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
</body>

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<!DOCTYPE html>
<title>Basic nesting</title>
<link rel="author" title="Adam Argyle" href="mailto:argyle@google.com">
<link rel="help" href="https://drafts.csswg.org/css-nesting-1/">
<link rel="match" href="../../../../expected/wpt-import/css/css-nesting/nesting-basic-ref.html">
<style>
.test {
background-color: red;
width: 30px;
height: 30px;
display: grid;
}
.test-1 {
& > div {
background-color: green;
}
}
.test-2 {
& > div {
background-color: green;
}
}
.test-3 {
& .test-3-child {
background-color: green;
}
}
span > b {
.test-4 section & {
display: inline-block;
background-color: green;
width: 100%;
height: 100%;
}
.test-4 section > & {
background-color: red;
}
}
.test-6 {
&.test {
background-color: green;
}
}
.test-7, .t7- {
& + .test-7-child, &.t7-- {
background-color: green;
}
}
.test-8 {
& {
background-color: green;
}
}
.test-9 {
&:is(.t9-, &.t9--) {
background-color: green;
}
}
.test-10 {
& {
background-color: red;
}
background-color: green;
}
.test-11 {
& {
background-color: red;
}
background-color: green !important;
}
/* & at top level counts as :scope, i.e. the root element here */
& .test-12 {
background-color: green;
}
& > .test-12 {
background-color: red !important;
}
body * + * {
margin-top: 8px;
}
</style>
<body>
<p>Tests pass if <strong>block is green</strong></p>
<div class="test test-1"><div></div></div>
<div class="test test-2"><div></div></div>
<div class="test test-3"><div class="test-3-child"></div></div>
<div class="test test-4">
<section>
<span><b></b></span>
</section>
</div>
<div class="test test-6"><div></div></div>
<div class="test t7- t7--"><div class="test-7-child"></div></div>
<div class="test test-8"><div></div></div>
<div class="test test-9 t9-- t9-"><div></div></div>
<div class="test test-10"><div></div></div>
<div class="test test-11"><div></div></div>
<div class="test test-12"></div>
</body>

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Summary
Harness status: OK
Rerun
Found 13 tests
13 Fail
Details
Result Test Name MessageFail CSSStyleRule is a CSSGroupingRule
Fail Simple CSSOM manipulation of subrules
Fail Simple CSSOM manipulation of subrules 1
Fail Simple CSSOM manipulation of subrules 2
Fail Simple CSSOM manipulation of subrules 3
Fail Simple CSSOM manipulation of subrules 4
Fail Simple CSSOM manipulation of subrules 5
Fail Simple CSSOM manipulation of subrules 6
Fail Simple CSSOM manipulation of subrules 7
Fail Simple CSSOM manipulation of subrules 8
Fail Simple CSSOM manipulation of subrules 9
Fail Simple CSSOM manipulation of subrules 10
Fail Mutating the selectorText of outer rule invalidates inner rules

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<!doctype html>
<title>Simple CSSOM manipulation of subrules</title>
<link rel="author" title="Steinar H. Gunderson" href="mailto:sesse@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-nesting-1/">
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<style id="ss"></style>
<script>
test(() => {
assert_equals(CSSStyleRule.__proto__, CSSGroupingRule);
}, "CSSStyleRule is a CSSGroupingRule");
test(() => {
let [ss] = document.styleSheets;
assert_equals(ss.cssRules.length, 0);
ss.insertRule('.a { color: red; }');
assert_equals(ss.cssRules.length, 1);
assert_equals(ss.cssRules[0].cssText, '.a { color: red; }');
// Test inserting sub-cssRules, at various positions.
ss.cssRules[0].insertRule('& .b { color: green; }');
ss.cssRules[0].insertRule('& .c { color: blue; }', 1);
ss.cssRules[0].insertRule('& .d { color: hotpink; }', 1);
assert_equals(ss.cssRules[0].cssText,
`.a {
color: red;
& .b { color: green; }
& .d { color: hotpink; }
& .c { color: blue; }
}`, 'inserting should work');
// Test deleting a rule.
ss.cssRules[0].deleteRule(1);
assert_equals(ss.cssRules[0].cssText,
`.a {
color: red;
& .b { color: green; }
& .c { color: blue; }
}`, 'deleting should work');
});
// Test that out-of-bounds throws exceptions and does not affect the stylesheet.
const sampleSheetText =
`.a {
color: red;
& .b { color: green; }
& .c { color: blue; }
}`;
test(() => {
document.getElementById('ss').innerHTML = sampleSheetText;
let [ss] = document.styleSheets;
assert_throws_dom('IndexSizeError', () => { ss.cssRules[0].insertRule('& .broken {}', 3); });
assert_equals(ss.cssRules[0].cssText, sampleSheetText, 'unchanged after no-insert');
});
test(() => {
document.getElementById('ss').innerHTML = sampleSheetText;
let [ss] = document.styleSheets;
assert_throws_dom('IndexSizeError', () => { ss.cssRules[0].insertRule('& .broken {}', -1); });
assert_equals(ss.cssRules[0].cssText, sampleSheetText, 'unchanged after no-insert');
});
test(() => {
document.getElementById('ss').innerHTML = sampleSheetText;
let [ss] = document.styleSheets;
assert_throws_dom('IndexSizeError', () => { ss.cssRules[0].deleteRule(5); });
assert_equals(ss.cssRules[0].cssText, sampleSheetText, 'unchanged after no-delete');
});
test(() => {
document.getElementById('ss').innerHTML = sampleSheetText;
let [ss] = document.styleSheets;
assert_equals(ss.cssRules[0].cssRules[2], undefined, 'subscript out-of-bounds returns undefined');
assert_equals(ss.cssRules[0].cssRules.item(2), null, 'item() out-of-bounds returns null');
assert_equals(ss.cssRules[0].cssText, sampleSheetText, 'unchanged after no-access');
});
// Test that inserting an invalid rule throws an exception.
test(() => {
document.getElementById('ss').innerHTML = sampleSheetText;
let [ss] = document.styleSheets;
let exception;
assert_throws_dom('SyntaxError', () => { ss.cssRules[0].insertRule('% {}'); });
assert_equals(ss.cssRules[0].cssText, sampleSheetText, 'unchanged after invalid rule');
});
// Test that we can get out single rule through .cssRules.
test(() => {
document.getElementById('ss').innerHTML = sampleSheetText;
let [ss] = document.styleSheets;
assert_equals(ss.cssRules[0].cssRules[1].cssText, '& .c { color: blue; }');
});
// Test that we can insert a @supports rule, that it serializes in the right place
// and has the right parent. Note that the indentation is broken per-spec.
test(() => {
document.getElementById('ss').innerHTML = sampleSheetText;
let [ss] = document.styleSheets;
ss.cssRules[0].insertRule('@supports selector(&) { & div { font-size: 10px; }}', 1);
assert_equals(ss.cssRules[0].cssText,
`.a {
color: red;
& .b { color: green; }
@supports selector(&) {
& div { font-size: 10px; }
}
& .c { color: blue; }
}`, '@supports is added');
assert_equals(ss.cssRules[0].cssRules[1].parentRule, ss.cssRules[0]);
ss.cssRules[0].deleteRule(1);
assert_equals(ss.cssRules[0].cssText, sampleSheetText);
});
// Nested rules are not part of declaration lists, and thus should not
// be possible to insert with .style.
test(() => {
document.getElementById('ss').innerHTML = sampleSheetText;
let [ss] = document.styleSheets;
ss.cssRules[0].style = 'color: olivedrab; &.d { color: peru; }';
assert_equals(ss.cssRules[0].cssText,
`.a {
color: olivedrab;
& .b { color: green; }
& .c { color: blue; }
}`, 'color is changed, new rule is ignored');
});
test(() => {
document.getElementById('ss').innerHTML = sampleSheetText;
let [ss] = document.styleSheets;
ss.cssRules[0].cssRules[0].selectorText = 'div.b .c &'; // Allowed
ss.cssRules[0].cssRules[1].selectorText = '.c div.b &, div &'; // Allowed.
ss.cssRules[0].insertRule('div & {}'); // Allowed.
assert_equals(ss.cssRules[0].cssText,
`.a {
color: red;
div & { }
div.b .c & { color: green; }
.c div.b &, div & { color: blue; }
}`, 'selectorText and insertRule');
});
// Rules that are dropped in forgiving parsing but that contain &,
// must still be serialized out as they were.
test(() => {
const text = '.a { :is(!& .foo, .b) { color: green; } }';
document.getElementById('ss').innerHTML = text;
let [ss] = document.styleSheets;
assert_equals(ss.cssRules[0].cssText,
`.a {
:is(!& .foo, .b) { color: green; }
}`, 'invalid rule containing ampersand is kept in serialization');
});
test((t) => {
let main = document.createElement('main');
main.innerHTML = `
<style>
.a {
& { z-index:1; }
& #inner1 { z-index:1; }
.stuff, :is(&) #inner2 { z-index:1; }
}
</style>
<div id="outer" class="b">
<div id="inner1"></div>
<div id="inner2"></div>
</div>
`;
document.documentElement.append(main);
t.add_cleanup(() => main.remove());
assert_equals(getComputedStyle(outer).zIndex, 'auto');
assert_equals(getComputedStyle(inner1).zIndex, 'auto');
assert_equals(getComputedStyle(inner2).zIndex, 'auto');
// .a => .b
main.firstElementChild.sheet.cssRules[0].selectorText = '.b';
assert_equals(getComputedStyle(outer).zIndex, '1');
assert_equals(getComputedStyle(inner1).zIndex, '1');
assert_equals(getComputedStyle(inner2).zIndex, '1');
}, 'Mutating the selectorText of outer rule invalidates inner rules');
</script>