1 files changed, 57 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-view-transitions/pseudo-element-overflow-hidden.html b/testing/web-platform/tests/css/css-view-transitions/pseudo-element-overflow-hidden.html
new file mode 100644
index 0000000000..e40df4f6a8
--- /dev/null
+++ b/testing/web-platform/tests/css/css-view-transitions/pseudo-element-overflow-hidden.html
@@ -0,0 +1,57 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>View transitions: overflow:hidden is respected on pseudo elements</title>
+<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
+<link rel="author" href="mailto:mattwoodrow@apple.com">
+<link rel="match" href="pseudo-element-overflow-hidden-ref.html">
+<script src="/common/reftest-wait.js"></script>
+<style>
+body {
+  margin: 0px;
+}
+div {
+  width: 200px;
+  height: 200px;
+}
+#target {
+  width: 200px;
+  height: 200px;
+  background: green;
+  view-transition-name: target;
+}
+#inner {
+  position: relative;
+  left: 100px;
+  top: 100px;
+  background: blue;
+}
+
+/* We're verifying what we capture, so just display both of the captures for 5 minutes.  */
+html::view-transition-group(*) { animation-duration: 300s; }
+html::view-transition-new(*) { animation: unset; opacity: 1; }
+html::view-transition-old(*) { animation: unset; opacity: 1; }
+/* hide the root so we show transition background to ensure we're in a transition */
+html::view-transition-group(root) { animation: unset; opacity: 0; }
+html::view-transition { background: pink; }
+
+html::view-transition-new(target) {
+  overflow:hidden;
+}
+html::view-transition-old(target) {
+  left: 400px;
+  overflow: hidden;
+}
+</style>
+
+<div id="target"><div id="inner"></div></div>
+<script>
+failIfNot(document.startViewTransition, "Missing document.startViewTransition");
+
+async function runTest() {
+  let t = document.startViewTransition();
+  t.ready.then(takeScreenshot);
+}
+onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest));
+</script>
+
+</html>