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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
commit43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule
parentInitial commit. (diff)
downloadfirefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz
firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule')
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/access-from-shadow-dom-ref.html6
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/access-from-shadow-dom.html25
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/additive-symbols-syntax.html31
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/broken-symbols-ref.html3
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/broken-symbols.html13
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/dependent-builtin-ref.html15
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/dependent-builtin.html17
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-fallback-invalid-ref.html10
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-fallback-invalid.html18
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-fallback-ref.html35
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-fallback.html39
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-negative-invalid-ref.html10
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-negative-invalid.html19
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-negative-ref.html17
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-negative.html23
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-pad-invalid-ref.html10
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-pad-invalid.html19
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-pad-ref.html31
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-pad.html44
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-prefix-invalid-ref.html10
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-prefix-invalid.html19
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-prefix-ref.html17
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-prefix.html28
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-range-invalid-ref.html10
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-range-invalid.html19
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-range-ref.html22
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-range.html19
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-suffix-invalid-ref.html10
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-suffix-invalid.html19
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-suffix-ref.html28
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-suffix.html41
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-symbols-invalid-ref.html17
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-symbols-invalid.html27
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-symbols-ref.html16
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-symbols.html23
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/disclosure-styles-ref.html38
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/disclosure-styles.html33
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/fallback.html29
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/fallbacks-in-shadow-dom-ref.html15
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/fallbacks-in-shadow-dom.html53
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/name-case-sensitivity-ref.html77
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/name-case-sensitivity.html79
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/name-syntax.html27
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/negative-syntax.html22
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/override-in-shadow-dom-ref.html19
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/override-in-shadow-dom.html52
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/pad-syntax.html28
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/prefix-suffix-syntax.html43
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/range-syntax.html29
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/redefine-attr-mapping-ref.html31
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/redefine-attr-mapping.html50
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/redefine-builtin-ref.html11
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/redefine-builtin.html27
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/shadow-dom-part-ref.html8
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/shadow-dom-part.html35
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/speak-as-manual.html186
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/speak-as-syntax.html35
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/support/counter-style-testcommon.js83
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/support/ref-common.css12
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/support/test-common.css22
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/symbols-function-invalid-ref.html14
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/symbols-function-invalid.html23
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/symbols-function-ref.html89
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/symbols-function.html72
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/symbols-syntax.html30
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-additive-invalid.html16
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-additive-ref.html39
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-additive.html42
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-alphabetic-invalid.html24
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-alphabetic-ref.html15
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-alphabetic.html18
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-common-invalid-ref.html8
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-common-invalid2-ref.html11
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-cyclic-invalid.html16
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-cyclic-ref.html17
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-cyclic.html25
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-extends-invalid-ref.html19
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-extends-invalid.html46
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-extends-ref.html27
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-extends.html27
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-fixed-invalid.html23
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-fixed-ref.html27
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-fixed.html27
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-numeric-invalid.html24
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-numeric-ref.html16
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-numeric.html18
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-symbolic-invalid.html16
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-symbolic-ref.html23
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-symbolic.html25
-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-syntax.html38
90 files changed, 2569 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/access-from-shadow-dom-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/access-from-shadow-dom-ref.html
new file mode 100644
index 0000000000..ee40f94bda
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/access-from-shadow-dom-ref.html
@@ -0,0 +1,6 @@
+<!DOCTYPE html>
+<ol>
+ <div>A.</div>
+ <div>B.</div>
+ <div>C.</div>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/access-from-shadow-dom.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/access-from-shadow-dom.html
new file mode 100644
index 0000000000..94ec03722b
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/access-from-shadow-dom.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<title>Counter styles defined in the document tree scope should be globally accessible</title>
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#the-counter-style-rule">
+<link rel="help" href="https://drafts.csswg.org/css-scoping/#shadow-names">
+<link rel="author" href="mailto:xiaochengh@chromium.org">
+<link rel="match" href="access-from-shadow-dom-ref.html">
+
+<style>
+@counter-style foo {
+ system: fixed;
+ symbols: A B C;
+}
+</style>
+
+<div id="host"></div>
+
+<script>
+document.getElementById("host").attachShadow({mode: 'open'}).innerHTML = `
+<ol style="list-style-type: foo; list-style-position: inside">
+ <li></li>
+ <li></li>
+ <li></li>
+</ol>
+`
+</script>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/additive-symbols-syntax.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/additive-symbols-syntax.html
new file mode 100644
index 0000000000..b1c4a0e8be
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/additive-symbols-syntax.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-symbols">
+<link rel="author" href="mailto:xiaochengh@chromium.org">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/counter-style-testcommon.js"></script>
+<script>
+function test_valid_additive_symbols(value, expected) {
+ test_valid_counter_style_descriptor('additive-symbols', value, expected);
+}
+
+function test_invalid_additive_symbols(value) {
+ test_invalid_counter_style_descriptor('additive-symbols', value);
+}
+
+// [ <integer [0,∞]> && <symbol> ]#
+
+test_valid_additive_symbols('0 "X"');
+test_valid_additive_symbols('1 "X"');
+test_valid_additive_symbols('"X" 1', '1 "X"');
+test_valid_additive_symbols('5 "V", 1 "I"');
+
+test_invalid_additive_symbols('');
+
+// Weights must be non-negative
+test_invalid_additive_symbols('-1 "X"');
+
+// Weights must be in strictly decreasing order
+test_invalid_additive_symbols('1 "I", 5 "V"');
+test_invalid_additive_symbols('1 "X", 1 "Y"');
+</script>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/broken-symbols-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/broken-symbols-ref.html
new file mode 100644
index 0000000000..0247f65d3e
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/broken-symbols-ref.html
@@ -0,0 +1,3 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<ol><li>Should have "1." as bullet point.</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/broken-symbols.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/broken-symbols.html
new file mode 100644
index 0000000000..eea52a75b4
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/broken-symbols.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: invalid counter-style symbols</title>
+<link rel="author" title="Anthony Ramine" href="mailto:n.oxyde@gmail.com">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#typedef-symbol">
+<link rel="match" href="broken-symbols-ref.html">
+<style type="text/css">
+ @counter-style a {
+ system: alphabetic;
+ symbols: ⓐ inherit;
+ }
+</style>
+<ol style="list-style-type: a"><li>Should have "1." as bullet point.</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/dependent-builtin-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/dependent-builtin-ref.html
new file mode 100644
index 0000000000..a558ce29e6
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/dependent-builtin-ref.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<div>&#x4e00;&#x5343;&#x3001;</div>
+<div>&#x4e00;&#x5343;&#x96f6;&#x4e00;&#x3001;</div>
+<div>&#x4e00;&#x5343;&#x96f6;&#x4e8c;&#x3001;</div>
+<div>&#x4e00;&#x5343;&#x96f6;&#x4e09;&#x3001;</div>
+<div>&#x4e00;&#x5343;&#x96f6;&#x56db;&#x3001;</div>
+<div>&#x4e00;&#x3007;&#x3007;&#x4e94;&#x3001;</div>
+<div>&#x4e00;&#x3007;&#x3007;&#x516d;&#x3001;</div>
+<div>&#x4e00;&#x3007;&#x3007;&#x4e03;&#x3001;</div>
+<div>&#x4e00;&#x3007;&#x3007;&#x516b;&#x3001;</div>
+<div>&#x4e00;&#x3007;&#x3007;&#x4e5d;&#x3001;</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/dependent-builtin.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/dependent-builtin.html
new file mode 100644
index 0000000000..553dd72dca
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/dependent-builtin.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: dependent builtin</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#extends-system">
+<link rel="match" href="dependent-builtin-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: extends simp-chinese-informal;
+ range: 1000 1004;
+ }
+</style>
+<ol start="1000" style="list-style-type: a">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-fallback-invalid-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-fallback-invalid-ref.html
new file mode 100644
index 0000000000..4b1c78b204
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-fallback-invalid-ref.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<div>00.&nbsp;</div>
+<div>A.&nbsp;</div>
+<div>B.&nbsp;</div>
+<div>C.&nbsp;</div>
+<div>D.&nbsp;</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-fallback-invalid.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-fallback-invalid.html
new file mode 100644
index 0000000000..e19d9d649a
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-fallback-invalid.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: descriptor fallback, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-fallback">
+<link rel="match" href="descriptor-fallback-invalid-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: extends upper-alpha;
+ fallback: decimal-leading-zero;
+ fallback: decimal cjk-decimal;
+ fallback: "*";
+ }
+</style>
+<ol start="0" style="list-style-type: a">
+ <li><li><li><li><li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-fallback-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-fallback-ref.html
new file mode 100644
index 0000000000..1dc3f4561c
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-fallback-ref.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<!-- list-style-type: a -->
+<div>a.&nbsp;</div>
+<div>b.&nbsp;</div>
+<div>c.&nbsp;</div>
+<div>d.&nbsp;</div>
+<div>e.&nbsp;</div>
+<div>f.&nbsp;</div>
+<div>7.&nbsp;</div>
+<div>8.&nbsp;</div>
+<div>9.&nbsp;</div>
+<!-- list-style-type: b -->
+<div>a.&nbsp;</div>
+<div>b.&nbsp;</div>
+<div>c.&nbsp;</div>
+<div>d.&nbsp;</div>
+<div>e.&nbsp;</div>
+<div>f.&nbsp;</div>
+<div>7.&nbsp;</div>
+<div>8.&nbsp;</div>
+<div>9.&nbsp;</div>
+<!-- list-style-type: c -->
+<div>a.&nbsp;</div>
+<div>b.&nbsp;</div>
+<div>c.&nbsp;</div>
+<div>d.&nbsp;</div>
+<div>e.&nbsp;</div>
+<div>f.&nbsp;</div>
+<div>g.&nbsp;</div>
+<div>h.&nbsp;</div>
+<div>i.&nbsp;</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-fallback.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-fallback.html
new file mode 100644
index 0000000000..7cbfb88592
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-fallback.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: descriptor fallback</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-fallback">
+<link rel="match" href="descriptor-fallback-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: fixed;
+ symbols: a b c;
+ fallback: b;
+ }
+ @counter-style b {
+ system: fixed 4;
+ symbols: d e f;
+ fallback: a;
+ }
+ @counter-style c {
+ system: fixed 7;
+ symbols: g h i;
+ fallback: a;
+ }
+</style>
+<ol style="list-style-type: a">
+ <li><li><li>
+ <li><li><li>
+ <li><li><li>
+</ol>
+<ol style="list-style-type: b">
+ <li><li><li>
+ <li><li><li>
+ <li><li><li>
+</ol>
+<ol style="list-style-type: c">
+ <li><li><li>
+ <li><li><li>
+ <li><li><li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-negative-invalid-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-negative-invalid-ref.html
new file mode 100644
index 0000000000..a14d7b40be
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-negative-invalid-ref.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<div>!2.&nbsp;</div>
+<div>!1.&nbsp;</div>
+<div>0.&nbsp;</div>
+<div>1.&nbsp;</div>
+<div>2.&nbsp;</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-negative-invalid.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-negative-invalid.html
new file mode 100644
index 0000000000..f7376ea5dd
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-negative-invalid.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: descriptor negative, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-negative">
+<link rel="match" href="descriptor-negative-invalid-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: extends decimal;
+ negative: '!';
+ negative: 0;
+ negative: ~;
+ negative: '(' 'x' ')';
+ }
+</style>
+<ol start="-2" style="list-style-type: a">
+ <li><li><li><li><li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-negative-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-negative-ref.html
new file mode 100644
index 0000000000..9216a87fc7
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-negative-ref.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<!-- list-style-type: a -->
+<div>&#x207B;2.&nbsp;</div>
+<div>&#x207B;1.&nbsp;</div>
+<div>0.&nbsp;</div>
+<div>1.&nbsp;</div>
+<div>2.&nbsp;</div>
+<!-- list-style-type: b -->
+<div>(2).&nbsp;</div>
+<div>(1).&nbsp;</div>
+<div>0.&nbsp;</div>
+<div>1.&nbsp;</div>
+<div>2.&nbsp;</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-negative.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-negative.html
new file mode 100644
index 0000000000..cf06bc4c7c
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-negative.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: descriptor negative</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-negative">
+<link rel="match" href="descriptor-negative-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: extends decimal;
+ negative: \207B;
+ }
+ @counter-style b {
+ system: extends decimal;
+ negative: '(' ')';
+ }
+</style>
+<ol start="-2" style="list-style-type: a">
+ <li><li><li><li><li>
+</ol>
+<ol start="-2" style="list-style-type: b">
+ <li><li><li><li><li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-pad-invalid-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-pad-invalid-ref.html
new file mode 100644
index 0000000000..1da956e3d5
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-pad-invalid-ref.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<div>001.&nbsp;</div>
+<div>002.&nbsp;</div>
+<div>003.&nbsp;</div>
+<div>004.&nbsp;</div>
+<div>005.&nbsp;</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-pad-invalid.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-pad-invalid.html
new file mode 100644
index 0000000000..4145eb7889
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-pad-invalid.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: descriptor pad, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-pad">
+<link rel="match" href="descriptor-pad-invalid-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: extends decimal;
+ pad: 3 "0";
+ pad: -1 "X";
+ pad: "#";
+ pad: 2 0;
+ }
+</style>
+<ol style="list-style-type: a">
+ <li><li><li><li><li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-pad-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-pad-ref.html
new file mode 100644
index 0000000000..444368a61a
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-pad-ref.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<!-- list-style-type: a -->
+<div>-III.&nbsp;</div>
+<div>-II.&nbsp;</div>
+<div>-*I.&nbsp;</div>
+<div>0.&nbsp;</div>
+<div>**I.&nbsp;</div>
+<div>*II.&nbsp;</div>
+<div>III.&nbsp;</div>
+<div>*IV.&nbsp;</div>
+<div>**V.&nbsp;</div>
+<div>6.&nbsp;</div>
+<!-- list-style-type: b -->
+<div>(2).&nbsp;</div>
+<div>(1).&nbsp;</div>
+<div>000.&nbsp;</div>
+<div>001.&nbsp;</div>
+<div>002.&nbsp;</div>
+<!-- list-style-type: c -->
+<div>ooa&#x0304;</div>
+<div>ooa&#x0301;</div>
+<div>oa&#x0304;a&#x0301;</div>
+<div>oa&#x030c;a&#x0300;</div>
+<div>a&#x0304;a&#x0301;a&#x030c;</div>
+<div>a&#x0300;a&#x0304;a&#x0301;</div>
+<!-- list-style-type: d -->
+<div>001.&nbsp;</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-pad.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-pad.html
new file mode 100644
index 0000000000..220e36b787
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-pad.html
@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: descriptor pad</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-pad">
+<link rel="match" href="descriptor-pad-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: extends upper-roman;
+ range: infinite 5;
+ pad: 3 '*';
+ }
+ @counter-style b {
+ system: extends decimal;
+ negative: '(' ')';
+ pad: 3 '0';
+ }
+ @counter-style c {
+ system: alphabetic;
+ symbols: a\0304 a\0301 a\030c a\0300;
+ pad: 3 o;
+ suffix: '';
+ }
+ @counter-style d {
+ system: extends decimal;
+ pad: '0' 3;
+ }
+</style>
+<ol start="-3" style="list-style-type: a">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
+<ol start="-2" style="list-style-type: b">
+ <li><li><li><li><li>
+</ol>
+<ol style="list-style-type: c">
+ <li><li>
+ <li value="6"><li value="16">
+ <li value="27"><li value="70">
+</ol>
+<ol style="list-style-type: d">
+ <li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-prefix-invalid-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-prefix-invalid-ref.html
new file mode 100644
index 0000000000..4d5b82e7c3
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-prefix-invalid-ref.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<div>#-2.&nbsp;</div>
+<div>#-1.&nbsp;</div>
+<div>#0.&nbsp;</div>
+<div>#1.&nbsp;</div>
+<div>#2.&nbsp;</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-prefix-invalid.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-prefix-invalid.html
new file mode 100644
index 0000000000..33aa5452ac
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-prefix-invalid.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: descriptor prefix, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-prefix">
+<link rel="match" href="descriptor-prefix-invalid-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: extends decimal;
+ prefix: "#";
+ prefix: *;
+ prefix: 0;
+ prefix: '$' '$';
+ }
+</style>
+<ol start="-2" style="list-style-type: a">
+ <li><li><li><li><li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-prefix-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-prefix-ref.html
new file mode 100644
index 0000000000..aa32f53639
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-prefix-ref.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<!-- ol -->
+<div>Appendix -2.&nbsp;</div>
+<div>Appendix -1.&nbsp;</div>
+<div>Appendix 0.&nbsp;</div>
+<div>Appendix I.&nbsp;</div>
+<div>Appendix II.&nbsp;</div>
+<!-- section -->
+<p>-2</p>
+<p>-1</p>
+<p>0</p>
+<p>I</p>
+<p>II</p>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-prefix.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-prefix.html
new file mode 100644
index 0000000000..ecf18420aa
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-prefix.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: descriptor prefix</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-prefix">
+<link rel="match" href="descriptor-prefix-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: extends upper-roman;
+ prefix: "Appendix ";
+ }
+ section {
+ counter-reset: p -3;
+ }
+ p {
+ counter-increment: p;
+ }
+ p::before {
+ content: counter(p, a);
+ }
+</style>
+<ol start="-2" style="list-style-type: a">
+ <li><li><li><li><li>
+</ol>
+<section>
+ <p><p><p><p><p>
+</section>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-range-invalid-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-range-invalid-ref.html
new file mode 100644
index 0000000000..88922a293f
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-range-invalid-ref.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<div>a.&nbsp;</div>
+<div>b.&nbsp;</div>
+<div>3.&nbsp;</div>
+<div>4.&nbsp;</div>
+<div>5.&nbsp;</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-range-invalid.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-range-invalid.html
new file mode 100644
index 0000000000..2f55ef074b
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-range-invalid.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: descriptor range, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-range">
+<link rel="match" href="descriptor-range-invalid-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: extends lower-alpha;
+ range: 1 2;
+ range: 1;
+ range: 3 1;
+ range: xx yy;
+ }
+</style>
+<ol style="list-style-type: a">
+ <li><li><li><li><li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-range-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-range-ref.html
new file mode 100644
index 0000000000..8b35eea997
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-range-ref.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<div>-III.&nbsp;</div>
+<div>-2.&nbsp;</div>
+<div>-I.&nbsp;</div>
+<div>0.&nbsp;</div>
+<div>I.&nbsp;</div>
+<div>II.&nbsp;</div>
+<div>3.&nbsp;</div>
+<div>IV.&nbsp;</div>
+<div>5.&nbsp;</div>
+<div>6.&nbsp;</div>
+<div>VII.&nbsp;</div>
+<div>VIII.&nbsp;</div>
+<div>IX.&nbsp;</div>
+<div>10.&nbsp;</div>
+<div>XI.&nbsp;</div>
+<div>MMMCMXCIX.&nbsp;</div>
+<div>MMMM.&nbsp;</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-range.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-range.html
new file mode 100644
index 0000000000..699c985431
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-range.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: descriptor range</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-range">
+<link rel="match" href="descriptor-range-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: extends upper-roman;
+ range: infinite -3, -1 2, 4 4, 7 9, 11 infinite;
+ }
+</style>
+<ol start="-3" style="list-style-type: a">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+ <li value="3999"><li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-suffix-invalid-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-suffix-invalid-ref.html
new file mode 100644
index 0000000000..e350778122
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-suffix-invalid-ref.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<div>-2,</div>
+<div>-1,</div>
+<div>0,</div>
+<div>1,</div>
+<div>2,</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-suffix-invalid.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-suffix-invalid.html
new file mode 100644
index 0000000000..f62181bf9c
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-suffix-invalid.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: descriptor suffix, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-suffix">
+<link rel="match" href="descriptor-suffix-invalid-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: extends decimal;
+ suffix: ',';
+ suffix: *;
+ suffix: 0;
+ suffix: '$' '$';
+ }
+</style>
+<ol start="-2" style="list-style-type: a">
+ <li><li><li><li><li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-suffix-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-suffix-ref.html
new file mode 100644
index 0000000000..ccbb7bdd69
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-suffix-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<style type="text/css">
+ div {
+ padding: 0; margin: 0;
+ line-height: 150%;
+ }
+</style>
+<!-- list-style-type: a -->
+<div>-2,-2</div>
+<div>-1,-1</div>
+<div>0,0</div>
+<div>1,1</div>
+<div>2,2</div>
+<!-- list-style-type: b -->
+<div>-2&#x3001;-2</div>
+<div>-1&#x3001;-1</div>
+<div>0&#x3001;0</div>
+<div>1&#x3001;1</div>
+<div>2&#x3001;2</div>
+<!-- section -->
+<div>-2</div>
+<div>-1</div>
+<div>0</div>
+<div>1</div>
+<div>2</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-suffix.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-suffix.html
new file mode 100644
index 0000000000..c558d6b30d
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-suffix.html
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: descriptor suffix</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-suffix">
+<link rel="match" href="descriptor-suffix-ref.html">
+<style type="text/css">
+ @counter-style a {
+ system: extends decimal;
+ suffix: ",";
+ }
+ @counter-style b {
+ system: extends decimal;
+ suffix: \3001;
+ }
+ ol {
+ list-style-position: inside;
+ }
+ ol, section, p {
+ padding: 0; margin: 0;
+ line-height: 150%;
+ }
+ section {
+ counter-reset: p -3;
+ }
+ p {
+ counter-increment: p;
+ }
+ p::before {
+ content: counter(p, a);
+ }
+</style>
+<ol start="-2" style="list-style-type: a">
+ <li>-2<li>-1<li>0<li>1<li>2
+</ol>
+<ol start="-2" style="list-style-type: b">
+ <li>-2<li>-1<li>0<li>1<li>2
+</ol>
+<section>
+ <p><p><p><p><p>
+</section>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-symbols-invalid-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-symbols-invalid-ref.html
new file mode 100644
index 0000000000..50e1ee8468
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-symbols-invalid-ref.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<!-- list-style-type: a -->
+<div>a.&nbsp;</div>
+<div>b.&nbsp;</div>
+<div>c.&nbsp;</div>
+<div>4.&nbsp;</div>
+<div>5.&nbsp;</div>
+<!-- list-style-type: b -->
+<div>a.&nbsp;</div>
+<div>b.&nbsp;</div>
+<div>c.&nbsp;</div>
+<div>ca.&nbsp;</div>
+<div>cb.&nbsp;</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-symbols-invalid.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-symbols-invalid.html
new file mode 100644
index 0000000000..a0d0e3560b
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-symbols-invalid.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: descriptor symbols, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-symbols">
+<link rel="match" href="descriptor-symbols-invalid-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: fixed;
+ symbols: a b c;
+ symbols: 0 1 2;
+ }
+ @counter-style b {
+ system: additive;
+ additive-symbols: 3 c, 2 b, 1 a;
+ additive-symbols: 1 x, 2 y, 3 z;
+ additive-symbols: x, y, z;
+ additive-symbols: 1, 2, 3;
+ }
+</style>
+<ol style="list-style-type: a">
+ <li><li><li><li><li>
+</ol>
+<ol style="list-style-type: b">
+ <li><li><li><li><li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-symbols-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-symbols-ref.html
new file mode 100644
index 0000000000..e353cc9536
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-symbols-ref.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<!-- list-style-type: a -->
+<div>a.&nbsp;</div>
+<div>b.&nbsp;</div>
+<div>c.&nbsp;</div>
+<!-- list-style-type: b -->
+<div>a.&nbsp;</div>
+<div>b.&nbsp;</div>
+<div>c.&nbsp;</div>
+<div>d.&nbsp;</div>
+<div>e.&nbsp;</div>
+<div>f.&nbsp;</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-symbols.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-symbols.html
new file mode 100644
index 0000000000..15568f08e4
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/descriptor-symbols.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: descriptor symbols</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-symbols">
+<link rel="match" href="descriptor-symbols-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: fixed;
+ symbols: a "b" \63;
+ }
+ @counter-style b {
+ system: additive;
+ additive-symbols: \66 6, 'e' 5, d 4, 3 \63, 2 "b", 1 a;
+ }
+</style>
+<ol style="list-style-type: a">
+ <li><li><li>
+</ol>
+<ol style="list-style-type: b">
+ <li><li><li><li><li><li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/disclosure-styles-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/disclosure-styles-ref.html
new file mode 100644
index 0000000000..a1dafa7560
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/disclosure-styles-ref.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<style type="text/css">
+ @counter-style disclosure-closed2-ltr {
+ system: cyclic;
+ symbols: \25b8;
+ suffix: ' ';
+ }
+ @counter-style disclosure-closed2-rtl {
+ system: cyclic;
+ symbols: \25c2;
+ suffix: ' ';
+ }
+ @counter-style disclosure-open2 {
+ system: cyclic;
+ symbols: \25be;
+ suffix: ' ';
+ }
+ .open { list-style-type: disclosure-open2; }
+ .closed:dir(ltr) { list-style-type: disclosure-closed2-ltr; }
+ .closed:dir(rtl) { list-style-type: disclosure-closed2-rtl; }
+ ul {
+ padding: 0;
+ list-style-position: inside;
+ }
+</style>
+<ul dir="ltr">
+ <li class="closed">closed ltr
+ <li class="open">open ltr
+</ul>
+<ul dir="rtl">
+ <li class="closed">closed rtl
+ <li class="open">open rtl
+</ul>
+<p dir="ltr">&#x25b8;&nbsp;closed ltr
+<p dir="rtl">&#x25c2;&nbsp;closed rtl
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/disclosure-styles.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/disclosure-styles.html
new file mode 100644
index 0000000000..79ac6ca145
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/disclosure-styles.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: disclosure styles</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#disclosure-open">
+<link rel="match" href="disclosure-styles-ref.html">
+<style type="text/css">
+ @counter-style disclosure-closed2 {
+ system: extends disclosure-closed;
+ }
+ @counter-style disclosure-open2 {
+ system: extends disclosure-open;
+ }
+ ul {
+ padding: 0;
+ list-style-position: inside;
+ }
+ .closed { list-style-type: disclosure-closed2; }
+ .open { list-style-type: disclosure-open2; }
+ p::before {
+ content: counter(a, disclosure-closed) " ";
+ }
+</style>
+<ul dir="ltr">
+ <li class="closed">closed ltr
+ <li class="open">open ltr
+</ul>
+<ul dir="rtl">
+ <li class="closed">closed rtl
+ <li class="open">open rtl
+</ul>
+<p dir="ltr">closed ltr
+<p dir="rtl">closed rtl
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/fallback.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/fallback.html
new file mode 100644
index 0000000000..5c844fbccf
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/fallback.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-fallback">
+<link rel="author" href="mailto:xiaochengh@chromium.org">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/counter-style-testcommon.js"></script>
+<script>
+function test_valid_fallback(value) {
+ test_valid_counter_style_descriptor('fallback', value);
+}
+
+function test_invalid_fallback(value) {
+ test_invalid_counter_style_descriptor('fallback', value);
+}
+
+// <counter-style-name>
+
+test_valid_fallback('bar');
+
+// Counter style names are custom identifiers, not strings
+test_invalid_fallback('"bar"');
+
+// The following are not valid counter style names
+test_invalid_fallback('none');
+test_invalid_fallback('initial');
+test_invalid_fallback('inherit');
+test_invalid_fallback('unset');
+
+</script>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/fallbacks-in-shadow-dom-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/fallbacks-in-shadow-dom-ref.html
new file mode 100644
index 0000000000..53e467bb39
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/fallbacks-in-shadow-dom-ref.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+
+<ol>
+ <div>This list style should fallback to 'foo' in the parent tree scope</div>
+ <div>A.</div>
+ <div>B.</div>
+ <div>C.</div>
+</ol>
+
+<ol>
+ <div>This list style should fallback to 'foo' in the shadow tree scope</div>
+ <div>X.</div>
+ <div>Y.</div>
+ <div>Z.</div>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/fallbacks-in-shadow-dom.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/fallbacks-in-shadow-dom.html
new file mode 100644
index 0000000000..d51f70bc31
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/fallbacks-in-shadow-dom.html
@@ -0,0 +1,53 @@
+<!DOCTYPE html>
+<title>Counter style references are tree-scoped, the same name may dereference to different rules</title>
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#the-counter-style-rule">
+<link rel="help" href="https://drafts.csswg.org/css-scoping/#shadow-names">
+<link rel="author" href="mailto:xiaochengh@chromium.org">
+<link rel="match" href="fallbacks-in-shadow-dom-ref.html">
+
+<style>
+@counter-style foo {
+ system: cyclic;
+ symbols: A B C;
+}
+
+@counter-style bar {
+ system: fixed 4;
+ symbols: D E F;
+ fallback: foo;
+}
+</style>
+
+<div id="host">
+</div>
+
+<script>
+document.getElementById("host").attachShadow({mode: 'open'}).innerHTML = `
+<style>
+@counter-style foo {
+ system: cyclic;
+ symbols: X Y Z;
+}
+
+@counter-style baz {
+ system: fixed 4;
+ symbols: G H I;
+ fallback: foo;
+}
+</style>
+
+<ol style="list-style-type: bar; list-style-position: inside">
+ <div>This list style should fallback to 'foo' in the parent tree scope</div>
+ <li></li>
+ <li></li>
+ <li></li>
+</ol>
+
+<ol style="list-style-type: baz; list-style-position: inside">
+ <div>This list style should fallback to 'foo' in the shadow tree scope</div>
+ <li></li>
+ <li></li>
+ <li></li>
+</ol>
+`
+</script>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/name-case-sensitivity-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/name-case-sensitivity-ref.html
new file mode 100644
index 0000000000..96a848a792
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/name-case-sensitivity-ref.html
@@ -0,0 +1,77 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<style type="text/css">
+ ol, div, p {
+ padding: 0; margin: 0;
+ line-height: 150%;
+ }
+ ol {
+ list-style-position: inside;
+ }
+ li, div, p {
+ float: left;
+ }
+ @counter-style decimal-leading-zero {
+ system: extends decimal;
+ pad: 3 '0';
+ }
+ @counter-style custom-style {
+ system: cyclic;
+ symbols: \2023;
+ }
+</style>
+
+<!-- list-style -->
+<ol><li style="list-style: hiragana inside;"></li></ol>
+<ol><li style="list-style: decimal-leading-zero inside;"></li></ol>
+<ol><li style="list-style: custom-style inside;"></li></ol>
+<ol><li style="list-style: decimal inside;"></li></ol>
+
+<!-- list-style-type -->
+<ol><li style="list-style-type: hiragana;"></li></ol>
+<ol><li style="list-style-type: decimal-leading-zero;"></li></ol>
+<ol><li style="list-style-type: custom-style;"></li></ol>
+<ol><li style="list-style-type: decimal;"></li></ol>
+
+<!-- counter() -->
+<style type="text/css">
+ #counter { counter-reset: a 1; }
+ #counter-a::before { content: counter(a, hiragana); }
+ #counter-b::before { content: counter(a, decimal-leading-zero); }
+ #counter-c::before { content: counter(a, custom-style); }
+ #counter-d::before { content: counter(a, decimal); }
+</style>
+<div id="counter">
+ <p id="counter-a"></p>
+ <p id="counter-b"></p>
+ <p id="counter-c"></p>
+ <p id="counter-d"></p>
+</div>
+
+<!-- counters() -->
+<style type="text/css">
+ #counters { counter-reset: a 1; }
+ #counters-a::before { content: counters(a, '', hiragana); }
+ #counters-b::before { content: counters(a, '', decimal-leading-zero); }
+ #counters-c::before { content: counters(a, '', custom-style); }
+ #counters-d::before { content: counters(a, '', decimal); }
+</style>
+<div id="counters">
+ <p id="counters-a"></p>
+ <p id="counters-b"></p>
+ <p id="counters-c"></p>
+ <p id="counters-d"></p>
+</div>
+
+<style type="text/css">
+ @counter-style a { system: extends hiragana; }
+ @counter-style b { system: extends decimal-leading-zero; }
+ @counter-style c { system: extends custom-style; }
+ @counter-style d { system: extends decimal; }
+</style>
+<ol><li style="list-style-type: a;"></li></ol>
+<ol><li style="list-style-type: b;"></li></ol>
+<ol><li style="list-style-type: c;"></li></ol>
+<ol><li style="list-style-type: d;"></li></ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/name-case-sensitivity.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/name-case-sensitivity.html
new file mode 100644
index 0000000000..1e478bf17e
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/name-case-sensitivity.html
@@ -0,0 +1,79 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: name case sensitivity</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#typedef-counter-style-name">
+<link rel="match" href="name-case-sensitivity-ref.html">
+<style type="text/css">
+ ol, div, p {
+ padding: 0; margin: 0;
+ line-height: 150%;
+ }
+ ol {
+ list-style-position: inside;
+ }
+ li, div, p {
+ float: left;
+ }
+ @counter-style decimal-leading-zero {
+ system: extends decimal;
+ pad: 3 '0';
+ }
+ @counter-style custom-style {
+ system: cyclic;
+ symbols: \2023;
+ }
+</style>
+
+<!-- list-style -->
+<ol><li style="list-style: Hiragana inside;"></li></ol>
+<ol><li style="list-style: Decimal-Leading-Zero inside;"></li></ol>
+<ol><li style="list-style: custom-style inside;"></li></ol>
+<ol><li style="list-style: Custom-Style inside;"></li></ol>
+
+<!-- list-style-type -->
+<ol><li style="list-style-type: Hiragana;"></li></ol>
+<ol><li style="list-style-type: Decimal-Leading-Zero;"></li></ol>
+<ol><li style="list-style-type: custom-style;"></li></ol>
+<ol><li style="list-style-type: Custom-Style;"></li></ol>
+
+<!-- counter() -->
+<style type="text/css">
+ #counter { counter-reset: a 1; }
+ #counter-a::before { content: counter(a, Hiragana); }
+ #counter-b::before { content: counter(a, Decimal-leading-Zero); }
+ #counter-c::before { content: counter(a, custom-style); }
+ #counter-d::before { content: counter(a, Custom-Style); }
+</style>
+<div id="counter">
+ <p id="counter-a"></p>
+ <p id="counter-b"></p>
+ <p id="counter-c"></p>
+ <p id="counter-d"></p>
+</div>
+
+<!-- counters() -->
+<style type="text/css">
+ #counters { counter-reset: a 1; }
+ #counters-a::before { content: counters(a, '', Hiragana); }
+ #counters-b::before { content: counters(a, '', Decimal-leading-Zero); }
+ #counters-c::before { content: counters(a, '', custom-style); }
+ #counters-d::before { content: counters(a, '', Custom-Style); }
+</style>
+<div id="counters">
+ <p id="counters-a"></p>
+ <p id="counters-b"></p>
+ <p id="counters-c"></p>
+ <p id="counters-d"></p>
+</div>
+
+<style type="text/css">
+ @counter-style a { system: extends HiRaGaNa; }
+ @counter-style b { system: extends Decimal-leading-ZERO; }
+ @counter-style c { system: extends custom-style; }
+ @counter-style d { system: extends Custom-Style; }
+</style>
+<ol><li style="list-style-type: a;"></li></ol>
+<ol><li style="list-style-type: b;"></li></ol>
+<ol><li style="list-style-type: c;"></li></ol>
+<ol><li style="list-style-type: d;"></li></ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/name-syntax.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/name-syntax.html
new file mode 100644
index 0000000000..73d3f968c1
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/name-syntax.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#the-counter-style-rule">
+<link rel="author" href="mailto:xiaochengh@chromium.org">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/counter-style-testcommon.js"></script>
+<script>
+test_valid_name('foo');
+test_valid_name('decimal-leading-zero');
+test_valid_name('lower-alpha');
+test_valid_name('cjk-decimal');
+test_valid_name('japanese-informal');
+test_valid_name('ethiopic-numeric');
+
+test_invalid_name('');
+test_invalid_name('none');
+test_invalid_name('initial');
+test_invalid_name('inherit');
+test_invalid_name('unset');
+
+test_invalid_name('decimal');
+test_invalid_name('disc');
+test_invalid_name('square');
+test_invalid_name('circle');
+test_invalid_name('disclosure-open');
+test_invalid_name('disclosure-closed');
+</script>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/negative-syntax.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/negative-syntax.html
new file mode 100644
index 0000000000..5314201e5d
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/negative-syntax.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-negative">
+<link rel="author" href="mailto:xiaochengh@chromium.org">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/counter-style-testcommon.js"></script>
+<script>
+function test_valid_negative(value) {
+ test_valid_counter_style_descriptor('negative', value);
+}
+
+function test_invalid_negative(value) {
+ test_invalid_counter_style_descriptor('negative', value);
+}
+
+// <symbol> <symbol>?
+
+test_valid_negative('"X"');
+test_valid_negative('"X" "X"');
+test_invalid_negative('"X" "X" "X"');
+
+</script>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/override-in-shadow-dom-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/override-in-shadow-dom-ref.html
new file mode 100644
index 0000000000..aa398f73a7
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/override-in-shadow-dom-ref.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+
+<ol>
+ <div>A.</div>
+ <div>B.</div>
+ <div>C.</div>
+</ol>
+
+<ol>
+ <div>D.</div>
+ <div>E.</div>
+ <div>F.</div>
+</ol>
+
+<ol>
+ <div>G.</div>
+ <div>H.</div>
+ <div>I.</div>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/override-in-shadow-dom.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/override-in-shadow-dom.html
new file mode 100644
index 0000000000..62064eb6fe
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/override-in-shadow-dom.html
@@ -0,0 +1,52 @@
+<!DOCTYPE html>
+<title>Counter style rules in shadow DOM can override rules in ancestor scopes</title>
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#the-counter-style-rule">
+<link rel="help" href="https://drafts.csswg.org/css-scoping/#shadow-names">
+<link rel="author" href="mailto:xiaochengh@chromium.org">
+<link rel="match" href="override-in-shadow-dom-ref.html">
+
+<style>
+@counter-style foo {
+ system: fixed;
+ symbols: A B C;
+}
+</style>
+
+<ol style="list-style-type: foo; list-style-position: inside">
+ <li></li>
+ <li></li>
+ <li></li>
+</ol>
+
+<div id="host1"></div>
+<div id="host2"></div>
+
+<script>
+document.getElementById("host1").attachShadow({mode: 'open'}).innerHTML = `
+<style>
+@counter-style foo {
+ system: fixed;
+ symbols: D E F;
+}
+</style>
+<ol style="list-style-type: foo; list-style-position: inside">
+ <li></li>
+ <li></li>
+ <li></li>
+</ol>
+`;
+
+document.getElementById("host2").attachShadow({mode: 'open'}).innerHTML = `
+<style>
+@counter-style foo {
+ system: fixed;
+ symbols: G H I;
+}
+</style>
+<ol style="list-style-type: foo; list-style-position: inside">
+ <li></li>
+ <li></li>
+ <li></li>
+</ol>
+`;
+</script>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/pad-syntax.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/pad-syntax.html
new file mode 100644
index 0000000000..f82dd9d738
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/pad-syntax.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-pad">
+<link rel="author" href="mailto:xiaochengh@chromium.org">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/counter-style-testcommon.js"></script>
+<script>
+function test_valid_pad(value, expected) {
+ test_valid_counter_style_descriptor('pad', value, expected);
+}
+
+function test_invalid_pad(value) {
+ test_invalid_counter_style_descriptor('pad', value);
+}
+
+// <integer [0,∞]> && <symbol>
+
+test_invalid_pad('10');
+test_invalid_pad('"X"');
+test_valid_pad('0 "X"');
+test_valid_pad('10 "X"');
+test_valid_pad('"X" 10', '10 "X"');
+test_invalid_pad('-1 "X"');
+test_invalid_pad('"X" -1');
+test_invalid_pad('10 "X" "Y"');
+test_invalid_pad('10 10 "X"');
+
+</script>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/prefix-suffix-syntax.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/prefix-suffix-syntax.html
new file mode 100644
index 0000000000..4f53b9afe6
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/prefix-suffix-syntax.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-prefix">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-suffix">
+<link rel="author" href="mailto:xiaochengh@chromium.org">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/counter-style-testcommon.js"></script>
+<script>
+function test_valid_prefix_suffix(value, expected) {
+ test_valid_counter_style_descriptor('prefix', value, expected);
+ test_valid_counter_style_descriptor('suffix', value, expected);
+}
+
+function test_invalid_prefix_suffix(value) {
+ test_invalid_counter_style_descriptor('prefix', value);
+ test_invalid_counter_style_descriptor('suffix', value);
+}
+
+// <symbol>
+// <symbol> = <string> | <image> | <custom-ident>
+
+// string values
+test_valid_prefix_suffix('"string"');
+test_valid_prefix_suffix('"initial"');
+test_valid_prefix_suffix('"inherit"');
+test_valid_prefix_suffix('"unset"');
+
+// custom-ident values
+test_valid_prefix_suffix('custom-ident')
+test_invalid_prefix_suffix('initial');
+test_invalid_prefix_suffix('inherit');
+test_invalid_prefix_suffix('unset');
+
+// image values
+test_valid_prefix_suffix('url("https://example.com/foo.png")');
+test_valid_prefix_suffix('url(https://example.com/foo.png)', 'url("https://example.com/foo.png")');
+test_valid_prefix_suffix('linear-gradient(yellow, blue)');
+
+// Must be exactly one symbol
+test_invalid_prefix_suffix('');
+test_invalid_prefix_suffix('foo bar');
+
+</script>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/range-syntax.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/range-syntax.html
new file mode 100644
index 0000000000..26cea66a0e
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/range-syntax.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-range">
+<link rel="author" href="mailto:xiaochengh@chromium.org">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/counter-style-testcommon.js"></script>
+<script>
+function test_valid_range(value) {
+ test_valid_counter_style_descriptor('range', value);
+}
+
+function test_invalid_range(value) {
+ test_invalid_counter_style_descriptor('range', value);
+}
+
+// [ <integer> | infinite ]{2} ]# | auto
+
+test_valid_range('auto');
+
+test_valid_range('infinite infinite');
+test_valid_range('infinite 0');
+test_valid_range('0 infinite');
+
+test_valid_range('infinite 0, 5 10, 100 infinite');
+test_valid_range('infinite 10, 5 20, 15 infinite');
+
+test_invalid_range('');
+test_invalid_range('0 -1');
+</script>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/redefine-attr-mapping-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/redefine-attr-mapping-ref.html
new file mode 100644
index 0000000000..385efdf018
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/redefine-attr-mapping-ref.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ .circle { list-style-type: circle; }
+ .square { list-style-type: square; }
+ .hiragana { list-style-type: hiragana; }
+ .katakana { list-style-type: katakana; }
+ .hiragana-iroha { list-style-type: hiragana-iroha; }
+ .katakana-iroha { list-style-type: katakana-iroha; }
+ ::marker { font-family: inherit; }
+</style>
+<ul class="circle"><li></ul>
+<ul class="square"><li></ul>
+
+<ol><li></ol>
+<ol class="hiragana"><li></ol>
+<ol class="katakana"><li></ol>
+<ol class="hiragana-iroha"><li></ol>
+<ol class="katakana-iroha"><li></ol>
+
+<ul>
+ <li class="circle">
+ <li class="square">
+ <li class="hiragana">
+ <li class="katakana">
+ <li class="hiragana-iroha">
+ <li class="katakana-iroha">
+</ul>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/redefine-attr-mapping.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/redefine-attr-mapping.html
new file mode 100644
index 0000000000..1656f9f33e
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/redefine-attr-mapping.html
@@ -0,0 +1,50 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: redefine attr mapping</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#the-counter-style-rule">
+<link rel="match" href="redefine-attr-mapping-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style triangle {
+ system: cyclic;
+ symbols: \2023;
+ suffix: "";
+ }
+ @counter-style circle {
+ system: extends triangle;
+ }
+ @counter-style square {
+ system: extends triangle;
+ }
+ @counter-style lower-roman {
+ system: extends hiragana;
+ }
+ @counter-style upper-roman {
+ system: extends katakana;
+ }
+ @counter-style lower-alpha {
+ system: extends hiragana-iroha;
+ }
+ @counter-style upper-alpha {
+ system: extends katakana-iroha;
+ }
+ ::marker { font-family: inherit; }
+</style>
+<ul type="circle"><li></ul>
+<ul type="square"><li></ul>
+
+<ol><li></ol>
+<ol type="i"><li></ol>
+<ol type="I"><li></ol>
+<ol type="a"><li></ol>
+<ol type="A"><li></ol>
+
+<ul>
+ <li type="circle">
+ <li type="square">
+ <li type="i">
+ <li type="I">
+ <li type="a">
+ <li type="A">
+</ul>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/redefine-builtin-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/redefine-builtin-ref.html
new file mode 100644
index 0000000000..1d32dacacf
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/redefine-builtin-ref.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/test-common.css">
+<ol>
+ <li style="list-style-type: none">foo
+ <li style="list-style-type: decimal">bar
+ <li style="list-style-type: disc">baz
+ <li style="list-style-type: cjk-decimal">
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/redefine-builtin.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/redefine-builtin.html
new file mode 100644
index 0000000000..af90fcab8c
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/redefine-builtin.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: redefine builtin</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#the-counter-style-rule">
+<link rel="match" href="redefine-builtin-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style none {
+ system: extends lower-roman;
+ }
+ @counter-style decimal {
+ system: extends upper-roman;
+ }
+ @counter-style disc {
+ system: extends decimal;
+ }
+ @counter-style hebrew {
+ system: extends cjk-decimal;
+ }
+</style>
+<ol>
+ <li style="list-style-type: none">foo
+ <li style="list-style-type: decimal">bar
+ <li style="list-style-type: disc">baz
+ <li style="list-style-type: hebrew">
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/shadow-dom-part-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/shadow-dom-part-ref.html
new file mode 100644
index 0000000000..7f1af75320
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/shadow-dom-part-ref.html
@@ -0,0 +1,8 @@
+<!DOCTYPE html>
+
+<ol>
+ <div>A.</div>
+ <div>B.</div>
+ <div>C.</div>
+</ol>
+
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/shadow-dom-part.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/shadow-dom-part.html
new file mode 100644
index 0000000000..cc43eee8ef
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/shadow-dom-part.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<title>Counter style tree-scoped references</title>
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#the-counter-style-rule">
+<link rel="help" href="https://drafts.csswg.org/css-scoping/#shadow-names">
+<link rel="author" href="mailto:xiaochengh@chromium.org">
+<link rel="match" href="shadow-dom-part-ref.html">
+<meta name="assert" content="The list in the shadow tree should use the counter style defined in the outer document, because it's styled by the outer document">
+
+<style>
+@counter-style foo {
+ system: fixed;
+ symbols: A B C;
+}
+#host::part(list) {
+ list-style-type: foo;
+}
+</style>
+
+<div id="host"></div>
+
+<script>
+document.getElementById("host").attachShadow({mode: 'open'}).innerHTML = `
+<style>
+@counter-style foo {
+ system: fixed;
+ symbols: D E F;
+}
+</style>
+<ol part="list" style="list-style-position: inside">
+ <li></li>
+ <li></li>
+ <li></li>
+</ol>
+`;
+</script>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/speak-as-manual.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/speak-as-manual.html
new file mode 100644
index 0000000000..50f35ec142
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/speak-as-manual.html
@@ -0,0 +1,186 @@
+<!doctype html>
+<title>CSS counter style accessibility test</title>
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles/#counter-style-speak-as">
+<link rel="author" href="mailto:xiaochengh@chromium.org">
+<p>
+ This is a manual test. To run the tests, open the browser's developer tools
+ and navigate to the Accessibility pane (may need to activate it in Settings),
+ or use an OS-level accessibility inspector, and verify that the accessible
+ name of the list markers matches the text in the list items (excluding
+ quotation marks).
+
+ <br><br>
+
+ The following issue discusses ways to automate these tests:
+
+ <br><br>
+
+ https://github.com/web-platform-tests/wpt/issues/8355
+</p>
+<style>
+ @counter-style base {
+ system: cyclic;
+ symbols: 'One' 'Two' 'Three';
+ suffix: '. ';
+ }
+
+ @counter-style explicit-bullets {
+ system: extends base;
+ speak-as: bullets;
+ }
+ @counter-style explicit-numbers {
+ system: extends base;
+ speak-as: numbers;
+ }
+ @counter-style explicit-words {
+ system: extends base;
+ speak-as: words;
+ }
+
+ @counter-style auto-alphabetic {
+ system: alphabetic;
+ symbols: 'One' 'Two' 'Three';
+ suffix: '. ';
+ speak-as: auto;
+ }
+ @counter-style auto-cyclic {
+ system: cyclic;
+ symbols: 'One' 'Two' 'Three';
+ suffix: '. ';
+ speak-as: auto;
+ }
+ @counter-style auto-extends {
+ system: extends base;
+ speak-as: auto;
+ }
+ @counter-style auto-fixed {
+ system: fixed;
+ symbols: 'One' 'Two' 'Three';
+ suffix: '. ';
+ speak-as: auto;
+ }
+ @counter-style auto-symbolic {
+ system: symbolic;
+ symbols: 'One' 'Two' 'Three';
+ suffix: '. ';
+ speak-as: auto;
+ }
+ @counter-style auto-numeric {
+ system: numeric;
+ symbols: 'Zero' 'One' 'Two' 'Three';
+ suffix: '. ';
+ speak-as: auto;
+ }
+ @counter-style auto-additive {
+ system: additive;
+ additive-symbols: 3 'Three', 2 'Two', 1 'One';
+ suffix: '. ';
+ speak-as: auto;
+ }
+
+ @counter-style reference-bullets {
+ system: fixed;
+ symbols: 'Yi' 'Er' 'San';
+ suffix: '> ';
+ speak-as: explicit-bullets;
+ }
+ @counter-style reference-numbers {
+ system: fixed;
+ symbols: 'Yi' 'Er' 'San';
+ suffix: '> ';
+ speak-as: explicit-numbers;
+ }
+ @counter-style reference-words {
+ system: fixed;
+ symbols: 'Yi' 'Er' 'San';
+ suffix: '> ';
+ speak-as: explicit-words;
+ }
+
+</style>
+<body>
+ <ul style="list-style-type: disc">
+ <li>"&#x2022; "</li>
+ </ul>
+ <ul style="list-style-type: circle">
+ <li>"&#x25E6; "</li>
+ </ul>
+ <ul style="list-style-type: square">
+ <li>"&#x25FE; "</li>
+ </ul>
+ <ul style="list-style-type: disclosure-open">
+ <li>"&#x25BE; "</li>
+ </ul>
+ <ul style="list-style-type: disclosure-closed">
+ <li>"&#x25B8; "</li>
+ </ul>
+
+ <ul style="list-style-type: explicit-bullets">
+ <li>"&#x2022; "</li>
+ <li>"&#x2022; "</li>
+ <li>"&#x2022; "</li>
+ </ul>
+ <ul style="list-style-type: explicit-numbers">
+ <li>"1. "</li>
+ <li>"2. "</li>
+ <li>"3. "</li>
+ </ul>
+ <ul style="list-style-type: explicit-words">
+ <li>"One. "</li>
+ <li>"Two. "</li>
+ <li>"Three. "</li>
+ </ul>
+
+ <ul style="list-style-type: auto-alphabetic">
+ <li>"One. "</li>
+ <li>"Two. "</li>
+ <li>"Three. "</li>
+ </ul>
+ <ul style="list-style-type: auto-cyclic">
+ <li>"&#x2022; "</li>
+ <li>"&#x2022; "</li>
+ <li>"&#x2022; "</li>
+ </ul>
+ <ul style="list-style-type: auto-extends">
+ <li>"&#x2022; "</li>
+ <li>"&#x2022; "</li>
+ <li>"&#x2022; "</li>
+ </ul>
+ <ul style="list-style-type: auto-fixed">
+ <li>"1. "</li>
+ <li>"2. "</li>
+ <li>"3. "</li>
+ </ul>
+ <ul style="list-style-type: auto-symbolic">
+ <li>"1. "</li>
+ <li>"2. "</li>
+ <li>"3. "</li>
+ </ul>
+ <ul style="list-style-type: auto-numeric">
+ <li>"1. "</li>
+ <li>"2. "</li>
+ <li>"3. "</li>
+ </ul>
+ <ul style="list-style-type: auto-additive">
+ <li>"1. "</li>
+ <li>"2. "</li>
+ <li>"3. "</li>
+ </ul>
+
+ <ul style="list-style-type: reference-bullets">
+ <li>"&#x2022; "</li>
+ <li>"&#x2022; "</li>
+ <li>"&#x2022; "</li>
+ </ul>
+ <ul style="list-style-type: reference-numbers">
+ <li>"1&gt; "</li>
+ <li>"2&gt; "</li>
+ <li>"3&gt; "</li>
+ </ul>
+ <ul style="list-style-type: reference-words">
+ <li>"One&gt; "</li>
+ <li>"Two&gt; "</li>
+ <li>"Three&gt; "</li>
+ </ul>
+
+</body>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/speak-as-syntax.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/speak-as-syntax.html
new file mode 100644
index 0000000000..f67896633f
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/speak-as-syntax.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-speak_as">
+<link rel="author" href="mailto:xiaochengh@chromium.org">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/counter-style-testcommon.js"></script>
+<script>
+function test_valid_speak_as(value) {
+ test_valid_counter_style_descriptor('speak-as', value);
+}
+
+function test_invalid_speak_as(value) {
+ test_invalid_counter_style_descriptor('speak-as', value);
+}
+
+// auto | bullets | numbers | words | spell-out | <counter-style-name>
+
+test_valid_speak_as('auto');
+test_valid_speak_as('bullets');
+test_valid_speak_as('numbers');
+test_valid_speak_as('words');
+test_valid_speak_as('spell-out');
+
+test_valid_speak_as('bar');
+test_valid_speak_as('spellout'); // 'spellout' is a valid counter style name
+
+test_invalid_speak_as('bullets numbers');
+
+// The following are not valid counter style names
+test_invalid_speak_as('none');
+test_invalid_speak_as('initial');
+test_invalid_speak_as('inherit');
+test_invalid_speak_as('unset');
+
+</script>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/support/counter-style-testcommon.js b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/support/counter-style-testcommon.js
new file mode 100644
index 0000000000..a3615e92ff
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/support/counter-style-testcommon.js
@@ -0,0 +1,83 @@
+function test_counter_style_descriptor(descriptor, value, expected) {
+ let descriptors = [];
+ descriptors.push(`${descriptor}: ${value}`);
+
+ // Fill out the remaining necessary descriptors
+ if (descriptor === 'system') {
+ if (value === 'additive')
+ descriptors.push('additive-symbols: 1 "I"');
+ else if (!value.startsWith('extends'))
+ descriptors.push('symbols: "X" "Y"');
+ } else if (descriptor === 'symbols') {
+ descriptors.push('system: symbolic');
+ } else if (descriptor === 'additive-symbols') {
+ descriptors.push('system: additive');
+ } else {
+ descriptors.push('system: symbolic');
+ descriptors.push('symbols: "X" "Y"');
+ }
+
+ let style = document.createElement('style');
+ style.textContent = `@counter-style foo { ${descriptors.join(';')} }`;
+ document.head.appendChild(style);
+
+ test(() => {
+ let rule = style.sheet.cssRules[0];
+ // TODO: The spec is inconsistent on when the entire rule is invalid
+ // (and hence absent from OM), and when only the descriptor is invalid.
+ // Revise when spec issue is resolved.
+ // See https://github.com/w3c/csswg-drafts/issues/5717
+ if (!rule) {
+ assert_equals(expected, undefined);
+ return;
+ }
+
+ assert_equals(rule.constructor.name, 'CSSCounterStyleRule');
+
+ let text = rule.cssText;
+ if (expected)
+ assert_not_equals(text.indexOf(`${descriptor}: ${expected}`), -1);
+ else
+ assert_equals(text.indexOf(`${descriptor}:`), -1);
+ }, `@counter-style '${descriptor}: ${value}' is ${expected ? 'valid' : 'invalid'}`);
+
+ style.remove();
+}
+
+function test_valid_counter_style_descriptor(descriptor, value, expected) {
+ expected = expected || value;
+ test_counter_style_descriptor(descriptor, value, expected);
+}
+
+function test_invalid_counter_style_descriptor(descriptor, value) {
+ test_counter_style_descriptor(descriptor, value, undefined);
+}
+
+function test_counter_style_name(name, isValid) {
+ let style = document.createElement('style');
+ style.textContent = `@counter-style ${name} { system: symbolic; symbols: 'X' 'Y'; }`;
+ document.head.appendChild(style);
+
+ test(() => {
+ let rule = style.sheet.cssRules[0];
+ if (!isValid) {
+ assert_equals(rule, undefined);
+ return;
+ }
+
+ assert_not_equals(rule, undefined);
+ assert_equals(rule.constructor.name, 'CSSCounterStyleRule');
+ assert_equals(rule.name, name);
+ }, `@counter-style name ${name} is ${isValid ? 'valid' : 'invalid'}`);
+
+ style.remove();
+}
+
+function test_valid_name(name) {
+ test_counter_style_name(name, true);
+}
+
+function test_invalid_name(name) {
+ test_counter_style_name(name, false);
+}
+
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/support/ref-common.css b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/support/ref-common.css
new file mode 100644
index 0000000000..92d77de0e5
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/support/ref-common.css
@@ -0,0 +1,12 @@
+body {
+ /* to match ua.css, see bug 1020143 */
+ font-variant-numeric: tabular-nums;
+}
+div, p {
+ padding: 0; margin: 0;
+ line-height: 150%;
+ float: left;
+}
+p {
+ padding-right: .5em;
+}
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/support/test-common.css b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/support/test-common.css
new file mode 100644
index 0000000000..218dfcb770
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/support/test-common.css
@@ -0,0 +1,22 @@
+body {
+ /* to match ua.css, see bug 1020143 */
+ font-variant-numeric: tabular-nums;
+}
+ol, ul, section, p {
+ padding: 0; margin: 0;
+ line-height: 150%;
+}
+ol, ul {
+ list-style-position: inside;
+}
+li, p {
+ float: left;
+ padding: 0;
+}
+p {
+ padding-right: .5em;
+}
+li::marker {
+ /* Blink workaround of https://bugzilla.mozilla.org/show_bug.cgi?id=1688769 */
+ white-space: pre;
+}
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/symbols-function-invalid-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/symbols-function-invalid-ref.html
new file mode 100644
index 0000000000..e07de5f1f9
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/symbols-function-invalid-ref.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ .invalid {
+ list-style-type: lower-greek;
+ }
+</style>
+<ol start="-2" class="invalid">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/symbols-function-invalid.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/symbols-function-invalid.html
new file mode 100644
index 0000000000..35aa832587
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/symbols-function-invalid.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#symbols-function">
+<link rel="match" href="symbols-function-invalid-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ .invalid {
+ list-style-type: lower-greek;
+ list-style-type: symbols(a b c);
+ list-style-type: symbols(alphabetic a b c);
+ list-style-type: symbols(numeric 0 1 2);
+ list-style-type: symbols(additive 'a' 'b');
+ list-style-type: symbols(fixed);
+ list-style-type: symbols(alphabetic 'a');
+ list-style-type: symbols(numeric '0');
+ }
+</style>
+<ol start="-2" class="invalid">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/symbols-function-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/symbols-function-ref.html
new file mode 100644
index 0000000000..d2291bd1ef
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/symbols-function-ref.html
@@ -0,0 +1,89 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style cyclic {
+ system: cyclic;
+ symbols: '*' '\2020' '\2021' '\A7';
+ suffix: ' ';
+ }
+ @counter-style numeric {
+ system: numeric;
+ symbols: '0' '1' '2';
+ suffix: ' ';
+ }
+ @counter-style alphabetic {
+ system: alphabetic;
+ symbols: '\26AA' '\26AB';
+ suffix: ' ';
+ }
+ @counter-style symbolic {
+ system: symbolic;
+ symbols: '*' '\2020' '\2021' '\A7';
+ suffix: ' ';
+ }
+ @counter-style fixed {
+ system: fixed;
+ symbols: '\25F0' '\25F1' '\25F2' '\25F3';
+ suffix: ' ';
+ }
+ @counter-style counter {
+ symbols: '*';
+ }
+ @counter-style counters {
+ system: numeric;
+ symbols: '0' '1';
+ }
+ .counter { counter-reset: a; }
+ .counter p { counter-increment: a 1; }
+ .counter p::after {
+ content: counter(a, counter);
+ }
+ .counter, .counters {
+ list-style-type: none;
+ counter-reset: a;
+ }
+ .counter li, .counters li {
+ counter-increment: a;
+ padding-right: .5em;
+ }
+ .counter li::after {
+ content: counter(a, counter);
+ }
+ .counters .counters li::after {
+ content: counters(a, '.', counters);
+ }
+</style>
+<ol start="-2" style="list-style-type: symbolic">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
+<ol start="-2" style="list-style-type: cyclic">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
+<ol start="-2" style="list-style-type: numeric">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
+<ol start="-2" style="list-style-type: alphabetic">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
+<ol start="-2" style="list-style-type: symbolic">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
+<ol start="-2" style="list-style-type: fixed">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
+<ol class="counter">
+ <li><li><li><li><li>
+</ol>
+<ol class="counters">
+ <li><ol class="counters"><li><li><li><li><li></ol></li>
+ <li><ol class="counters"><li><li><li><li><li></ol></li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/symbols-function.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/symbols-function.html
new file mode 100644
index 0000000000..9f129582ff
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/symbols-function.html
@@ -0,0 +1,72 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: symbols function</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#symbols-function">
+<link rel="match" href="symbols-function-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ .default {
+ list-style-type: symbols('*' '\2020' '\2021' '\A7');
+ }
+ .cyclic {
+ list-style-type: symbols(cyclic '*' '\2020' '\2021' '\A7');
+ }
+ .numeric {
+ list-style-type: symbols(numeric '0' '1' '2');
+ }
+ .alphabetic {
+ list-style-type: symbols(alphabetic '\26AA' '\26AB');
+ }
+ .symbolic {
+ list-style-type: symbols(symbolic '*' '\2020' '\2021' '\A7');
+ }
+ .fixed {
+ list-style-type: symbols(fixed '\25F0' '\25F1' '\25F2' '\25F3');
+ }
+ .counter, .counters {
+ list-style-type: none;
+ counter-reset: a;
+ }
+ .counter li, .counters li {
+ counter-increment: a;
+ padding-right: .5em;
+ }
+ .counter li::after {
+ content: counter(a, symbols('*'));
+ }
+ .counters .counters li::after {
+ content: counters(a, '.', symbols(numeric '0' '1'));
+ }
+</style>
+<ol start="-2" class="default">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
+<ol start="-2" class="cyclic">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
+<ol start="-2" class="numeric">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
+<ol start="-2" class="alphabetic">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
+<ol start="-2" class="symbolic">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
+<ol start="-2" class="fixed">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
+<ol class="counter">
+ <li><li><li><li><li>
+</ol>
+<ol class="counters">
+ <li><ol class="counters"><li><li><li><li><li></ol></li>
+ <li><ol class="counters"><li><li><li><li><li></ol></li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/symbols-syntax.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/symbols-syntax.html
new file mode 100644
index 0000000000..df0824d6d7
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/symbols-syntax.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-symbols">
+<link rel="author" href="mailto:xiaochengh@chromium.org">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/counter-style-testcommon.js"></script>
+<script>
+function test_valid_symbols(value, expected) {
+ test_valid_counter_style_descriptor('symbols', value, expected);
+}
+
+function test_invalid_symbols(value) {
+ test_invalid_counter_style_descriptor('symbols', value);
+}
+
+// <symbol>+
+
+test_valid_symbols('"X"');
+test_valid_symbols('"X" "X"');
+test_valid_symbols('ident "X"');
+test_valid_symbols('ident "X" url("foo.jpg")');
+
+test_invalid_symbols('');
+test_invalid_symbols('initial "X" "X"');
+test_invalid_symbols('inherit "X" "X"');
+test_invalid_symbols('unset "X" "X"');
+test_invalid_symbols('default "X"');
+test_invalid_symbols('revert "X"');
+test_invalid_symbols('revert-layer "X"');
+</script>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-additive-invalid.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-additive-invalid.html
new file mode 100644
index 0000000000..1a8f94c041
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-additive-invalid.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: system additive, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#additive-system">
+<link rel="match" href="system-common-invalid-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: additive;
+ suffix: ":";
+ }
+</style>
+<ol start="-2" style="list-style-type: a">
+ <li>foo<li>bar<li>foo<li>bar
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-additive-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-additive-ref.html
new file mode 100644
index 0000000000..b45ab5fcec
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-additive-ref.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<!-- list-style-type: a -->
+<div>-2</div>
+<div>-1</div>
+<div>0</div>
+<div>&#x2680;</div>
+<div>&#x2681;</div>
+<div>&#x2682;</div>
+<div>&#x2683;</div>
+<div>&#x2684;</div>
+<div>&#x2685;</div>
+<div>&#x2685;&#x2680;</div>
+<div>&#x2685;&#x2683;</div>
+<div>&#x2685;&#x2684;</div>
+<div>&#x2685;&#x2685;</div>
+<div>&#x2685;&#x2685;&#x2680;</div>
+<div><script type="text/javascript">
+ document.write(Array(61).join('&#x2685;'));
+</script></div>
+<!-- list-style-type: b -->
+<div>-2</div>
+<div>-1</div>
+<div>&#x2637;</div>
+<div>&#x2636;</div>
+<div>&#x2635;</div>
+<!-- list-style-type: c -->
+<div>1.&nbsp;</div>
+<div>b.&nbsp;</div>
+<div>a.&nbsp;</div>
+<div>4.&nbsp;</div>
+<div>ab.&nbsp;</div>
+<!-- list-style-type: d -->
+<div><script type="text/javascript">
+ document.write(Array(61).join('&#x10300;'));
+</script>.&nbsp;</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-additive.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-additive.html
new file mode 100644
index 0000000000..74568bccd1
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-additive.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: system additive</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#additive-system">
+<link rel="match" href="system-additive-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: additive;
+ additive-symbols: 6 \2685, 5 \2684, 4 \2683, 3 \2682, 2 \2681, 1 \2680;
+ suffix: "";
+ }
+ @counter-style b {
+ system: additive;
+ additive-symbols: 7 \2630, 6 \2631, 5 \2632, 4 \2633, 3 \2634, 2 \2635, 1 \2636, 0 \2637;
+ suffix: "";
+ }
+ @counter-style c {
+ system: additive;
+ additive-symbols: 3 "a", 2 "b";
+ }
+ @counter-style d {
+ system: additive;
+ additive-symbols: 1 \10300;
+ }
+</style>
+<ol start="-2" style="list-style-type: a">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+ <li value="10"><li><li><li>
+ <li value="360"><!-- 60 code points -->
+</ol>
+<ol start="-2" style="list-style-type: b">
+ <li><li><li><li><li>
+</ol>
+<ol style="list-style-type: c">
+ <li><li><li><li><li>
+</ol>
+<ol style="list-style-type: d">
+ <li value="60"><!-- 60 code points -->
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-alphabetic-invalid.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-alphabetic-invalid.html
new file mode 100644
index 0000000000..c0f8ae926d
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-alphabetic-invalid.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: system alphabetic, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#alphabetic-system">
+<link rel="match" href="system-common-invalid2-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: alphabetic;
+ suffix: ":";
+ }
+ @counter-style b {
+ system: alphabetic;
+ symbols: A;
+ suffix: ":";
+ }
+</style>
+<ol start="-2" style="list-style-type: a">
+ <li>foo<li>bar<li>foo<li>bar
+</ol>
+<ol start="-2" style="list-style-type: b">
+ <li>foo<li>bar<li>foo<li>bar
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-alphabetic-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-alphabetic-ref.html
new file mode 100644
index 0000000000..331d96ea4c
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-alphabetic-ref.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<div>-2</div>
+<div>-1</div>
+<div>0</div>
+<div>&#x26AA;</div>
+<div>&#x26AB;</div>
+<div>&#x26AA;&#x26AA;</div>
+<div>&#x26AA;&#x26AB;</div>
+<div>&#x26AB;&#x26AA;</div>
+<div>&#x26AB;&#x26AB;</div>
+<div>&#x26AA;&#x26AA;&#x26AA;</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-alphabetic.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-alphabetic.html
new file mode 100644
index 0000000000..9447eaf940
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-alphabetic.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: system alphabetic</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#alphabetic-system">
+<link rel="match" href="system-alphabetic-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: alphabetic;
+ symbols: \26AA \26AB;
+ suffix: '';
+ }
+</style>
+<ol start="-2" style="list-style-type: a">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-common-invalid-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-common-invalid-ref.html
new file mode 100644
index 0000000000..0b91fd4ccf
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-common-invalid-ref.html
@@ -0,0 +1,8 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/test-common.css">
+<ol start="-2" style="list-style-type: decimal">
+ <li>foo<li>bar<li>foo<li>bar
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-common-invalid2-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-common-invalid2-ref.html
new file mode 100644
index 0000000000..c0292b7d54
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-common-invalid2-ref.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/test-common.css">
+<ol start="-2" style="list-style-type: decimal">
+ <li>foo<li>bar<li>foo<li>bar
+</ol>
+<ol start="-2" style="list-style-type: decimal">
+ <li>foo<li>bar<li>foo<li>bar
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-cyclic-invalid.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-cyclic-invalid.html
new file mode 100644
index 0000000000..602df64451
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-cyclic-invalid.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: system cyclic, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#cyclic-system">
+<link rel="match" href="system-common-invalid-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: cyclic;
+ suffix: ":";
+ }
+</style>
+<ol start="-2" style="list-style-type: a">
+ <li>foo<li>bar<li>foo<li>bar
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-cyclic-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-cyclic-ref.html
new file mode 100644
index 0000000000..605a7ecda9
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-cyclic-ref.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<!-- list-style-type: a -->
+<div>&#x2023;</div>
+<div>&#x2023;</div>
+<div>&#x2023;</div>
+<div>&#x2023;</div>
+<div>&#x2023;</div>
+<!-- list-style-type: b -->
+<div>&#x2021;</div>
+<div>&#x2020;</div>
+<div>&#x2021;</div>
+<div>&#x2020;</div>
+<div>&#x2021;</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-cyclic.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-cyclic.html
new file mode 100644
index 0000000000..9d96b820e7
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-cyclic.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: system cyclic</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#cyclic-system">
+<link rel="match" href="system-cyclic-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: cyclic;
+ symbols: \2023;
+ suffix: "";
+ }
+ @counter-style b {
+ system: cyclic;
+ symbols: \2020 \2021;
+ suffix: "";
+ }
+</style>
+<ol start="-2" style="list-style-type: a">
+ <li><li><li><li><li>
+</ol>
+<ol start="-2" style="list-style-type: b">
+ <li><li><li><li><li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-extends-invalid-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-extends-invalid-ref.html
new file mode 100644
index 0000000000..3360e90f7e
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-extends-invalid-ref.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/test-common.css">
+<link rel="stylesheet" href="support/ref-common.css">
+<style type="text/css">
+ ol {
+ list-style: decimal inside;
+ }
+</style>
+<div>a1b</div>
+<div>2b</div>
+<div>c3.&nbsp;</div>
+<div>d4.&nbsp;</div>
+<div>e5.&nbsp;</div>
+<ol start="6">
+ <li>foo<li>bar
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-extends-invalid.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-extends-invalid.html
new file mode 100644
index 0000000000..446fe45e56
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-extends-invalid.html
@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: system extends, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#extends-system">
+<link rel="match" href="system-extends-invalid-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: extends b;
+ prefix: a;
+ }
+ @counter-style b {
+ system: extends c;
+ suffix: b;
+ }
+ @counter-style c {
+ system: extends b;
+ pad: 2 c;
+ }
+ @counter-style d {
+ system: extends d;
+ prefix: d;
+ }
+ @counter-style e {
+ system: extends unknown;
+ prefix: e;
+ }
+ @counter-style f {
+ system: extends decimal;
+ symbols: a;
+ }
+ @counter-style g {
+ system: extends decimal;
+ additive-symbols: 1 a;
+ }
+</style>
+<ol>
+ <li style="list-style-type: a;">
+ <li style="list-style-type: b;">
+ <li style="list-style-type: c;">
+ <li style="list-style-type: d;">
+ <li style="list-style-type: e;">
+ <li style="list-style-type: f;">foo
+ <li style="list-style-type: g;">bar
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-extends-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-extends-ref.html
new file mode 100644
index 0000000000..c988310c25
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-extends-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<!-- list-style-type: a -->
+<div>Chapter -2.&nbsp;</div>
+<div>Chapter -1.&nbsp;</div>
+<div>Chapter 0.&nbsp;</div>
+<div>Chapter I.&nbsp;</div>
+<div>Chapter II.&nbsp;</div>
+<div>Chapter III.&nbsp;</div>
+<div>Chapter IV.&nbsp;</div>
+<div>Chapter V.&nbsp;</div>
+<div>Chapter 6.&nbsp;</div>
+<div>Chapter 7.&nbsp;</div>
+<!-- list-style-type: b -->
+<div>Section -2.&nbsp;</div>
+<div>Section -1.&nbsp;</div>
+<div>Section 0.&nbsp;</div>
+<div>Section I.&nbsp;</div>
+<div>Section II.&nbsp;</div>
+<div>Section III.&nbsp;</div>
+<div>Section IV.&nbsp;</div>
+<div>Section V.&nbsp;</div>
+<div>Section VI.&nbsp;</div>
+<div>Section 7.&nbsp;</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-extends.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-extends.html
new file mode 100644
index 0000000000..287930d0f6
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-extends.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: system extends</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#extends-system">
+<link rel="match" href="system-extends-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: extends upper-roman;
+ prefix: "Chapter ";
+ range: 1 5;
+ }
+ @counter-style b {
+ system: extends a;
+ prefix: "Section ";
+ range: 1 6;
+ }
+</style>
+<ol start="-2" style="list-style-type: a">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
+<ol start="-2" style="list-style-type: b">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-fixed-invalid.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-fixed-invalid.html
new file mode 100644
index 0000000000..b12b786bf3
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-fixed-invalid.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: system fixed, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#fixed-system">
+<link rel="match" href="system-common-invalid2-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: fixed;
+ suffix: ":";
+ }
+ @counter-style b {
+ system: fixed invalid;
+ suffix: ":";
+ }
+</style>
+<ol start="-2" style="list-style-type: a">
+ <li>foo<li>bar<li>foo<li>bar
+</ol>
+<ol start="-2" style="list-style-type: b">
+ <li>foo<li>bar<li>foo<li>bar
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-fixed-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-fixed-ref.html
new file mode 100644
index 0000000000..0de7bb8368
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-fixed-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<!-- list-style-type: a -->
+<div>-2:</div>
+<div>-1:</div>
+<div>0:</div>
+<div>&#x25F0;:</div>
+<div>&#x25F1;:</div>
+<div>&#x25F2;:</div>
+<div>&#x25F3;:</div>
+<div>5:</div>
+<div>6:</div>
+<div>7:</div>
+<!-- list-style-type: b -->
+<div>-2:</div>
+<div>&#x25F4;:</div>
+<div>&#x25F5;:</div>
+<div>&#x25F6;:</div>
+<div>&#x25F7;:</div>
+<div>3:</div>
+<div>4:</div>
+<div>5:</div>
+<div>6:</div>
+<div>7:</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-fixed.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-fixed.html
new file mode 100644
index 0000000000..900c95297e
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-fixed.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: system fixed</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#fixed-system">
+<link rel="match" href="system-fixed-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: fixed;
+ symbols: \25F0 \25F1 \25F2 \25F3;
+ suffix: ':';
+ }
+ @counter-style b {
+ system: fixed -1;
+ symbols: \25F4 \25F5 \25F6 \25F7;
+ suffix: ':';
+ }
+</style>
+<ol start="-2" style="list-style-type: a">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
+<ol start="-2" style="list-style-type: b">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-numeric-invalid.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-numeric-invalid.html
new file mode 100644
index 0000000000..064da8eec7
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-numeric-invalid.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: system numeric, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#numeric-system">
+<link rel="match" href="system-common-invalid2-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: numeric;
+ suffix: ":";
+ }
+ @counter-style b {
+ system: numeric;
+ symbols: A;
+ suffix: ":";
+ }
+</style>
+<ol start="-2" style="list-style-type: a">
+ <li>foo<li>bar<li>foo<li>bar
+</ol>
+<ol start="-2" style="list-style-type: b">
+ <li>foo<li>bar<li>foo<li>bar
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-numeric-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-numeric-ref.html
new file mode 100644
index 0000000000..c7e70d6f3a
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-numeric-ref.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<div>-11.&nbsp;</div>
+<div>-10.&nbsp;</div>
+<div>-2.&nbsp;</div>
+<div>-1.&nbsp;</div>
+<div>0.&nbsp;</div>
+<div>1.&nbsp;</div>
+<div>2.&nbsp;</div>
+<div>10.&nbsp;</div>
+<div>11.&nbsp;</div>
+<div>12.&nbsp;</div>
+<div>10201.&nbsp;</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-numeric.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-numeric.html
new file mode 100644
index 0000000000..b5be591368
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-numeric.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: system numeric</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#numeric-system">
+<link rel="match" href="system-numeric-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: numeric;
+ symbols: '0' '1' '2';
+ }
+</style>
+<ol start="-4" style="list-style-type: a">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+ <li value="100">
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-symbolic-invalid.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-symbolic-invalid.html
new file mode 100644
index 0000000000..1c0fac4ee8
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-symbolic-invalid.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: system symbolic, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#symbolic-system">
+<link rel="match" href="system-common-invalid-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ system: symbolic;
+ suffix: ":";
+ }
+</style>
+<ol start="-2" style="list-style-type: a">
+ <li>foo<li>bar<li>foo<li>bar
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-symbolic-ref.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-symbolic-ref.html
new file mode 100644
index 0000000000..7229c895ff
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-symbolic-ref.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Reference: symbols function, invalid</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="stylesheet" href="support/ref-common.css">
+<!-- list-style-type: a -->
+<div>-2</div>
+<div>-1</div>
+<div>0</div>
+<div>*</div>
+<div>&#x2051;</div>
+<div>&#x2020;</div>
+<div>&#x2021;</div>
+<div>**</div>
+<div>&#x2051;&#x2051;</div>
+<div>&#x2020;&#x2020;</div>
+<div><script type="text/javascript">
+ document.write(Array(61).join('&#x2021;'));
+</script></div>
+<!-- list-style-type: b -->
+<div><script type="text/javascript">
+ document.write(Array(61).join('&#x10300;'));
+</script>.&nbsp;</div>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-symbolic.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-symbolic.html
new file mode 100644
index 0000000000..a3ab8b1a98
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-symbolic.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>CSS Test: system symbolic</title>
+<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#symbolic-system">
+<link rel="match" href="system-symbolic-ref.html">
+<link rel="stylesheet" href="support/test-common.css">
+<style type="text/css">
+ @counter-style a {
+ /* system: symbolic; */
+ symbols: '*' \2051 \2020 \2021;
+ suffix: '';
+ }
+ @counter-style b {
+ symbols: \10300;
+ }
+</style>
+<ol start="-2" style="list-style-type: a">
+ <li><li><li><li><li>
+ <li><li><li><li><li>
+ <li value="240"><!-- 60 code points -->
+</ol>
+<ol style="list-style-type: b">
+ <li value="60"><!-- 60 code points -->
+</ol>
diff --git a/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-syntax.html b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-syntax.html
new file mode 100644
index 0000000000..be593c436b
--- /dev/null
+++ b/testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/system-syntax.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-counter-styles-3/#counter-style-system">
+<link rel="author" href="mailto:xiaochengh@chromium.org">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/counter-style-testcommon.js"></script>
+<script>
+function test_valid_system(value) {
+ test_valid_counter_style_descriptor('system', value);
+}
+
+function test_invalid_system(value) {
+ test_invalid_counter_style_descriptor('system', value);
+}
+
+// cyclic | numeric | alphabetic | symbolic | additive |
+// [fixed <integer>?] | [ extends <counter-style-name> ]
+
+test_valid_system('cyclic');
+test_valid_system('fixed');
+test_valid_system('fixed 100');
+test_valid_system('fixed -1');
+test_valid_system('symbolic');
+test_valid_system('alphabetic');
+test_valid_system('numeric');
+test_valid_system('additive');
+test_valid_system('extends bar');
+
+test_invalid_system('float');
+test_invalid_system('cyclic cyclic');
+
+// The following are not valid counter style names
+test_invalid_system('extends none');
+test_invalid_system('extends initial');
+test_invalid_system('extends inherit');
+test_invalid_system('extends unset');
+
+</script>