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diff --git a/accessible/tests/mochitest/events/docload/test_docload_busy.html b/accessible/tests/mochitest/events/docload/test_docload_busy.html
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index 0000000000..37caf306bb
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+++ b/accessible/tests/mochitest/events/docload/test_docload_busy.html
@@ -0,0 +1,83 @@
+<html>
+
+<head>
+  <title>Accessible events testing for document</title>
+
+  <link rel="stylesheet" type="text/css"
+        href="chrome://mochikit/content/tests/SimpleTest/test.css" />
+
+  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+
+  <script type="application/javascript"
+          src="../../common.js"></script>
+  <script type="application/javascript"
+          src="../../role.js"></script>
+  <script type="application/javascript"
+          src="../../states.js"></script>
+  <script type="application/javascript"
+          src="../../events.js"></script>
+
+  <script type="application/javascript">
+    // //////////////////////////////////////////////////////////////////////////
+    // Invokers
+
+    function makeIFrameVisible(aID) {
+      this.DOMNode = getNode(aID);
+
+      this.eventSeq = [
+        new invokerChecker(EVENT_REORDER, this.DOMNode.parentNode),
+        {
+          type: EVENT_STATE_CHANGE,
+          get target() {
+            return getAccessible("iframe").firstChild;
+          },
+          match(aEvent) {
+            // The document shouldn't have busy state (the DOM document was
+            // loaded before its accessible was created). Do this test lately to
+            // make sure the content of document accessible was created
+            // initially, prior to this the document accessible keeps busy
+            // state. The initial creation happens asynchronously after document
+            // creation, there are no events we could use to catch it.
+            let { state, isEnabled } = aEvent.QueryInterface(nsIAccessibleStateChangeEvent);
+            return state & STATE_BUSY && !isEnabled;
+          },
+        },
+      ];
+
+      this.invoke = () => (this.DOMNode.style.visibility = "visible");
+
+      this.getID = () =>
+        "The accessible for DOM document loaded before it's shown shouldn't have busy state.";
+    }
+
+
+    // //////////////////////////////////////////////////////////////////////////
+    // Do tests
+
+    function doTests() {
+      const gQueue = new eventQueue();
+      gQueue.push(new makeIFrameVisible("iframe"));
+      gQueue.invoke(); // Will call SimpleTest.finish();
+    }
+
+    SimpleTest.waitForExplicitFinish();
+    addA11yLoadEvent(doTests);
+  </script>
+</head>
+
+<body>
+
+  <a target="_blank"
+     href="https://bugzilla.mozilla.org/show_bug.cgi?id=658185"
+     title="The DOM document loaded before it's shown shouldn't have busy state">
+    Mozilla Bug 658185
+  </a>
+
+  <p id="display"></p>
+  <div id="content" style="display: none"></div>
+  <pre id="test">
+  </pre>
+
+  <div id="testContainer"><iframe id="iframe" src="about:mozilla" style="visibility: hidden;"></iframe></div>
+</body>
+</html>