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-rw-r--r--testing/web-platform/tests/css/css-counter-styles/counter-style-at-rule/negative-syntax.html22
1 files changed, 22 insertions, 0 deletions
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
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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>