1 files changed, 37 insertions, 0 deletions
diff --git a/dom/events/test/test_bug641477.html b/dom/events/test/test_bug641477.html
new file mode 100644
index 0000000000..b669c3145b
--- /dev/null
+++ b/dom/events/test/test_bug641477.html
@@ -0,0 +1,37 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=641477
+-->
+<head>
+  <title>Test for Bug 641477</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=641477">Mozilla Bug 641477</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+  
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for Bug 641477 **/
+
+var didThrow = false;
+
+var e = document.createEvent("Event");
+try {
+  is(e.type, "", "Event type should be empty string before initialization");
+  document.dispatchEvent(e);
+} catch(ex) {
+  didThrow = (ex.name == "InvalidStateError" && ex.code == DOMException.INVALID_STATE_ERR);
+}
+
+ok(didThrow, "Should have thrown InvalidStateError!");
+
+</script>
+</pre>
+</body>
+</html>