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+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>IDBObjectStore.count() - If the object store has been deleted, the implementation must throw a DOMException of type InvalidStateError </title>
+<link rel="author" title="Intel" href="http://www.intel.com">
+<link rel="help" href="https://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#widl-IDBObjectStore-count-IDBRequest-any-key">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support.js"></script>
+<div id="log"></div>
+<script>
+    var db,
+        ostore,
+        t = async_test();
+
+    var open_rq = createdb(t);
+    open_rq.onupgradeneeded = function (event) {
+        db = event.target.result;
+        ostore = db.createObjectStore("store", {keyPath:"pKey"});
+        db.deleteObjectStore("store");
+        assert_throws("InvalidStateError", function(){
+            ostore.count();
+        });
+        t.done();
+    }
+</script>