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-rw-r--r--testing/web-platform/tests/layout-instability/shift-invisible.html22
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diff --git a/testing/web-platform/tests/layout-instability/shift-invisible.html b/testing/web-platform/tests/layout-instability/shift-invisible.html
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+++ b/testing/web-platform/tests/layout-instability/shift-invisible.html
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+<!DOCTYPE html>
+<title>Layout Instability: shift of invisible element not counted</title>
+<link rel="help" href="https://wicg.github.io/layout-instability/" />
+<div id="target" style="width: 100px; height: 100px; position: relative"></div>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="resources/util.js"></script>
+<script>
+
+promise_test(async () => {
+ const watcher = new ScoreWatcher;
+
+ // Wait for the initial render to complete.
+ await waitForAnimationFrames(2);
+
+ target.style.top = "200px";
+
+ await waitForAnimationFrames(3);
+ assert_equals(watcher.score, 0);
+}, "Shift of invisible element not counted.");
+
+</script>