File: test_callback_across_document_open.html

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<!DOCTYPE html>
<meta charset=utf-8>
<title>Test for callback invocation for a callback that comes from a
  no-longer-current window that still has an active document.</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="log"></div>
<iframe srcdoc='<script>function f() { parent.callCount++; }</script>'></iframe>
<script>
/* global async_test, assert_equals */
  var callCount = 0;
  var t = async_test("A test of callback invocation in a no-longer-current window with a still-active document");
  window.addEventListener("load", t.step_func_done(function() {
    var d = document.createElement("div");
    d.addEventListener("xyz", frames[0].f);
    frames[0].document.open();
    frames[0].document.write("All gone");
    frames[0].document.close();
    d.dispatchEvent(new Event("xyz"));
    assert_equals(callCount, 1, "Callback should have been called");
  }));
</script>