1 files changed, 27 insertions, 0 deletions
diff --git a/dom/browser-element/mochitest/browserElement_ScrollEvent.js b/dom/browser-element/mochitest/browserElement_ScrollEvent.js
new file mode 100644
index 0000000000..5c4b4dcf97
--- /dev/null
+++ b/dom/browser-element/mochitest/browserElement_ScrollEvent.js
@@ -0,0 +1,27 @@
+/* Any copyright is dedicated to the public domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Test that scroll event bubbles up.
+"use strict";
+
+SimpleTest.waitForExplicitFinish();
+browserElementTestHelpers.setEnabledPref(true);
+browserElementTestHelpers.addPermission();
+
+function runTest() {
+  var iframe = document.createElement('iframe');
+  iframe.setAttribute('mozbrowser', 'true');
+  document.body.appendChild(iframe);
+
+  iframe.addEventListener("mozbrowserscroll", function(e) {
+    ok(true, "got mozbrowserscroll event.");
+    ok(e.detail, "event.detail is not null.");
+    ok(e.detail.top === 4000, "top position is correct.");
+    ok(e.detail.left === 4000, "left position is correct.");
+    SimpleTest.finish();
+  });
+
+  iframe.src = "data:text/html,<html><body style='min-height: 5000px; min-width: 5000px;'></body><script>window.scrollTo(4000, 4000);</script></html>";
+}
+
+addEventListener('testready', runTest);