diff -r 000000000000 -r 6474c204b198 netwerk/test/unit/test_bug540566.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/netwerk/test/unit/test_bug540566.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,18 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+function continue_test(status, entry) {
+  do_check_eq(status, Components.results.NS_OK);
+  // TODO - mayhemer: remove this tests completely
+  // entry.deviceID;
+  // if the above line does not crash, the test was successful
+  do_test_finished();
+}
+
+function run_test() {
+  asyncOpenCacheEntry("http://some.key/",
+                      "disk", Ci.nsICacheStorage.OPEN_NORMALLY, null,
+                      continue_test);
+  do_test_pending();
+}