<!doctype html>
<title>document.open replacing singleton</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="log"></div>
<iframe src="004-1.html"></iframe>
<script>
var iframe = document.getElementsByTagName("iframe")[0];
var steps;
iframe.onload = function() {
steps = ["window", "location", "history", "navigator", "applicationCache", "sessionStorage", "localStorage", "locationbar"].map(
function(x) {
  var t = async_test(document.title + " " + x);
  var handle = iframe.contentWindow[x];
  handle.test_state = 1;
  return t.step_func(
      function() {
        var new_handle = iframe.contentWindow[x];
        assert_equals(new_handle.test_state, undefined);
        if (x !== "window") {
          assert_not_equals(new_handle, handle);
        } else {
          assert_equals(new_handle, handle);
        }
        t.done();
      });
  }
);
}
onload = function() {
  iframe.contentDocument.open();
  steps.forEach(function(x) {x()});
}
</script>