<!--
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  http://creativecommons.org/publicdomain/zero/1.0/
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<!DOCTYPE HTML>
<html>
<head>
  <title>Bug 1450358 - Test IDB event listener leak conditions</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <script type="text/javascript" src="/tests/dom/events/test/event_leak_utils.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<script class="testbody" type="text/javascript">
// Manipulate IDB objects in the frame's context.
// Its important here that we create a listener callback from
// the DOM objects back to the frame's global in order to
// exercise the leak condition.
let count = 0;
async function useIDB(contentWindow) {
  count += 1;
  let db = await new Promise(resolve => {
    let r = contentWindow.indexedDB.open("idb-leak-test-" + count, 1.0);
    r.onupgradeneeded = evt => {
      evt.target.result.createObjectStore("looped");
    };
    r.onsuccess = evt => {
      resolve(evt.target.result);
    };
  });

  let tx = db.transaction("looped", "readwrite");
  let store = tx.objectStore("looped");

  function spin() {
    contentWindow.spinCount += 1;
    store.get(0).onsuccess = spin;
  }

  store.put(0, "purgatory").onsuccess = e => {
    contentWindow.putCount += 1;
    spin();
  };
}

async function runTest() {
  try {
    await checkForEventListenerLeaks("IDB", useIDB);
  } catch (e) {
    ok(false, e);
  } finally {
    SimpleTest.finish();
  }
}

SimpleTest.waitForExplicitFinish();
addEventListener("load", runTest, { once: true });
</script>
</pre>
</body>
</html>
