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  http://creativecommons.org/publicdomain/zero/1.0/
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<!DOCTYPE HTML>
<html>
<head>
  <title>Bug 1203680 - Test interception of file blob uploads</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<p id="display"></p>
<div id="content" style="display: none"></div>
<pre id="test"></pre>
<script src="utils.js"></script>
<script class="testbody" type="text/javascript">
  var registration;
  var iframe;
  function start() {
    return navigator.serviceWorker.register("empty.js",
                                            { scope: "./sw_clients/" })
      .then((swr) => {
        registration = swr
        return waitForState(swr.installing, 'activated', swr);
      });
  }

  function unregister() {
    if (iframe) {
      iframe.remove();
      iframe = null;
    }

    return registration.unregister().then(function(result) {
      ok(result, "Unregister should return true.");
    }, function(e) {
      ok(false, "Unregistering the SW failed with " + e + "\n");
    });
  }

  function withFrame() {
    var content = document.getElementById("content");
    ok(content, "Parent exists.");

    iframe = document.createElement("iframe");
    iframe.setAttribute('src', "sw_clients/file_blob_upload_frame.html");
    content.appendChild(iframe);

    return new Promise(function(resolve, reject) {
      window.addEventListener('message', function(evt) {
        if (evt.data.status === 'READY') {
          resolve();
        } else {
          reject(evt.data.result);
        }
      }, {once: true});
    });
  }

  function postBlob(body) {
    return new Promise(function(resolve, reject) {
      window.addEventListener('message', function(evt) {
        if (evt.data.status === 'OK') {
          is(JSON.stringify(body), JSON.stringify(evt.data.result),
             'body echoed back correctly');
          resolve();
        } else {
          reject(evt.data.result);
        }
      }, {once: true});

      iframe.contentWindow.postMessage({ type: 'TEST', body }, '*');
    });
  }

  function generateMessage(length) {

    var lorem =
      'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis egestas '
      'vehicula tortor eget ultrices. Sed et luctus est. Nunc eu orci ligula. '
      'In vel ornare eros, eget lacinia diam. Praesent vel metus mattis, '
      'cursus nulla sit amet, rhoncus diam. Aliquam nulla tortor, aliquet et '
      'viverra non, dignissim vel tellus. Praesent sed ex in dolor aliquet '
      'aliquet. In at facilisis sem, et aliquet eros. Maecenas feugiat nisl '
      'quis elit blandit posuere. Duis viverra odio sed eros consectetur, '
      'viverra mattis ligula volutpat.';

    var result = '';

    while (result.length < length) {
      var remaining = length - result.length;
      if (remaining < lorem.length) {
        result += lorem.slice(0, remaining);
      } else {
        result += lorem;
      }
    }

    return result;
  }

  var smallBody = generateMessage(64);
  var mediumBody = generateMessage(1024);

  // TODO: Test large bodies over the default pipe size.  Currently stalls
  //       due to bug 1134372.
  //var largeBody = generateMessage(100 * 1024);

  function runTest() {
    start()
      .then(withFrame)
      .then(function() {
        return postBlob({ hops: 0, message: smallBody });
      })
      .then(function() {
        return postBlob({ hops: 1, message: smallBody });
      })
      .then(function() {
        return postBlob({ hops: 10, message: smallBody });
      })
      .then(function() {
        return postBlob({ hops: 0, message: mediumBody });
      })
      .then(function() {
        return postBlob({ hops: 1, message: mediumBody });
      })
      .then(function() {
        return postBlob({ hops: 10, message: mediumBody });
      })
      .then(unregister)
      .catch(function(e) {
        ok(false, "Some test failed with error " + e);
      }).then(SimpleTest.finish);
  }

  SimpleTest.waitForExplicitFinish();
  SpecialPowers.pushPrefEnv({"set": [
    ["dom.serviceWorkers.exemptFromPerDomainMax", true],
    ["dom.serviceWorkers.enabled", true],
    ["dom.serviceWorkers.testing.enabled", true]
  ]}, runTest);
</script>
</pre>
</body>
</html>
