1 files changed, 33 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/media-elements/loading-the-media-resource/resource-selection-pointer-insert-br.html b/testing/web-platform/tests/html/semantics/embedded-content/media-elements/loading-the-media-resource/resource-selection-pointer-insert-br.html
new file mode 100644
index 0000000000..3ee141e306
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/media-elements/loading-the-media-resource/resource-selection-pointer-insert-br.html
@@ -0,0 +1,33 @@
+<!doctype html>
+<title>pointer updates (adding br elements)</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id=log></div>
+<script>
+var a = 0;
+var b = 0;
+var c = 0;
+</script>
+<video
+ ><source onerror=a++
+ ><source onerror=b++ src='resources/delayed-broken-video.py'
+ ><source onerror=c++
+ ></video
+>
+<script>
+async_test(function(t) {
+  var video = document.querySelector('video');
+  // add br elements
+  var br = document.createElement('br');
+  video.insertBefore(br, video.querySelector('[onerror="a++"]'));
+  video.insertBefore(br.cloneNode(false), video.querySelector('[onerror="b++"]'));
+  video.insertBefore(br.cloneNode(false), video.querySelector('[onerror="c++"]'));
+  video.appendChild(br.cloneNode(false));
+  window.onload = t.step_func(function() {
+    assert_equals(a, 1, 'error events on a');
+    assert_equals(b, 1, 'error events on b');
+    assert_equals(c, 1, 'error events on c');
+    t.done();
+  });
+});
+</script>