1 files changed, 37 insertions, 0 deletions
diff --git a/testing/web-platform/tests/scroll-animations/css/scroll-timeline-name-computed.html b/testing/web-platform/tests/scroll-animations/css/scroll-timeline-name-computed.html
new file mode 100644
index 0000000000..b803ee8212
--- /dev/null
+++ b/testing/web-platform/tests/scroll-animations/css/scroll-timeline-name-computed.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/scroll-animations-1/#scroll-timeline-name">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/computed-testcommon.js"></script>
+</head>
+<style>
+  #outer { scroll-timeline-name: --foo; }
+  #target { scroll-timeline-name: --bar; }
+</style>
+<div id="outer">
+  <div id="target"></div>
+</div>
+<script>
+test_computed_value('scroll-timeline-name', 'initial', 'none');
+test_computed_value('scroll-timeline-name', 'inherit', '--foo');
+test_computed_value('scroll-timeline-name', 'unset', 'none');
+test_computed_value('scroll-timeline-name', 'revert', 'none');
+test_computed_value('scroll-timeline-name', 'none');
+test_computed_value('scroll-timeline-name', '--foo');
+test_computed_value('scroll-timeline-name', '--foo, --bar');
+test_computed_value('scroll-timeline-name', '--bar, --foo');
+test_computed_value('scroll-timeline-name', '--a, --b, --c, --D, --e');
+test_computed_value('scroll-timeline-name', 'none, none');
+test_computed_value('scroll-timeline-name', '--a, --b, --c, none, --d, --e');
+
+test(() => {
+  let style = getComputedStyle(document.getElementById('target'));
+  assert_not_equals(Array.from(style).indexOf('scroll-timeline-name'), -1);
+}, 'The scroll-timeline-name property shows up in CSSStyleDeclaration enumeration');
+
+test(() => {
+  let style = document.getElementById('target').style;
+  assert_not_equals(style.cssText.indexOf('scroll-timeline-name'), -1);
+}, 'The scroll-timeline-name property shows up in CSSStyleDeclaration.cssText');
+
+</script>