c-v: auto descendant in popover is shown on showPopover (#40970)
Test that content-visibility: auto descendant in popover is shown on showPopover.
diff --git a/css/css-contain/content-visibility/content-visibility-with-top-layer-and-auto-descendant-ref.html b/css/css-contain/content-visibility/content-visibility-with-top-layer-and-auto-descendant-ref.html
new file mode 100644
index 0000000..211bb89
--- /dev/null
+++ b/css/css-contain/content-visibility/content-visibility-with-top-layer-and-auto-descendant-ref.html
@@ -0,0 +1,13 @@
+<!doctype html>
+<meta charset="utf8">
+<title>CSS Content Visibility: content-visibility: auto descendant in popover is shown on showPopover"</title>
+<meta name="assert" content="content-visibility: auto descendant in popover is shown on showPopover">
+
+<div id="spacer" style="height: 100vh"></div>
+<div popover="manual" style="display: block; position: static;" id="popover">
+ <span>Test passes if this is visible</span>
+</div>
+
+<script>
+ popover.showPopover();
+</script>
diff --git a/css/css-contain/content-visibility/content-visibility-with-top-layer-and-auto-descendant.html b/css/css-contain/content-visibility/content-visibility-with-top-layer-and-auto-descendant.html
new file mode 100644
index 0000000..800020e
--- /dev/null
+++ b/css/css-contain/content-visibility/content-visibility-with-top-layer-and-auto-descendant.html
@@ -0,0 +1,31 @@
+<!doctype html>
+<html class="reftest-wait">
+<meta charset="utf8">
+<title>CSS Content Visibility: content-visibility: auto descendant in popover is shown on showPopover</title>
+<link rel="author" title="Rob Buis" href="mailto:rbuis@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/css-contain/#content-visibility">
+<link rel="match" href="content-visibility-with-top-layer-and-auto-descendant-ref.html">
+<meta name="assert" content="content-visibility: auto descendant in popover is shown on showPopover">
+<script src="/common/reftest-wait.js"></script>
+
+<style>
+#inner {
+ content-visibility: auto;
+ contain-intrinsic-size: 100px 100px;
+}
+</style>
+
+<div id="spacer" style="height: 100vh"></div>
+<div popover="manual" style="display: block; position: static;" id="popover">
+ <span id="inner">Test passes if this is visible</span>
+</div>
+
+<script>
+function runTest() {
+ popover.showPopover();
+ requestAnimationFrame(takeScreenshot);
+}
+
+window.onload = runTest;
+</script>
+</html>
