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<!--
  Any copyright is dedicated to the Public Domain.
  http://creativecommons.org/publicdomain/zero/1.0/
-->
<!DOCTYPE HTML>
<html>
<head>
  <title>Bug 1168875 - test devtools serviceworker interception.</title>
  <script type="application/javascript"
          src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet"
        type="text/css"
        href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
</head>
<body>
<p id="display"></p>
<div id="content" style="display: none"></div>
<pre id="test"></pre>
<script class="testbody" type="text/javascript">

// Constants
const Ci = Components.interfaces;
const workerScope = "http://mochi.test:8888/chrome/dom/workers/test/serviceworkers/";
const workerURL = workerScope + "fetch.js";
const contentPage = workerScope + "hello.html";

function createTestWindow(aURL) {
  var mainwindow = window.QueryInterface(Ci.nsIInterfaceRequestor)
                         .getInterface(Ci.nsIWebNavigation)
                         .QueryInterface(Ci.nsIDocShellTreeItem)
                         .rootTreeItem
                         .QueryInterface(Ci.nsIInterfaceRequestor)
                         .getInterface(Ci.nsIDOMWindow);
  var win = mainwindow.OpenBrowserWindow(contentPage);

  return new Promise(aResolve => {
    win.addEventListener("DOMContentLoaded", function callback() {
      if (win.content.location.href != aURL) {
        win.gBrowser.loadURI(aURL);
        return;
      }

      win.removeEventListener("DOMContentLoaded", callback);
      aResolve(win.content);
    });
  });
}

function executeTest(aWindow) {
  var registration;

  return Promise.resolve()
    // Should not be intercepted.
    .then(_ => fetchAndCheckTimedChannel(aWindow, false, true, "hello.html"))

    // Regist a service worker.
    .then(_ => register(aWindow, workerURL, workerScope))
    .then(r => registration = r)

    // Should be intercpeted and synthesized.
    .then(_ => fetchAndCheckTimedChannel(aWindow, true, false, "fake.html"))

    // Should be intercepted but still fetch from network.
    .then(_ => fetchAndCheckTimedChannel(aWindow, true, true,
                                         "hello.html?ForBypassingHttpCache"))

    // Tear down
    .then(_ => registration.unregister());
}

function register(aWindow, aURL, aScope) {
  return aWindow.navigator.serviceWorker.register(aURL, {scope: aScope})
    .then(r => {
      var worker = r.installing;
      return new Promise(function(aResolve) {
        worker.onstatechange = function() {
          if (worker.state == "activated") {
            aResolve(r);
          }
        }
      });
    });
}

function fetchAndCheckTimedChannel(aWindow, aIntercepted, aFetch, aURL) {
  var resolveFunction;
  var promise = new Promise(aResolve => resolveFunction = aResolve);

  var topic = aFetch ? "http-on-examine-response"
                     : "service-worker-synthesized-response";

  function observer(aSubject) {
    var channel = aSubject.QueryInterface(Ci.nsIChannel);
    ok(channel.URI.spec.endsWith(aURL));

    var tc = aSubject.QueryInterface(Ci.nsITimedChannel);

    // Check service worker related timings.
    var serviceWorkerTimings = [{start: tc.launchServiceWorkerStartTime,
                                 end:   tc.launchServiceWorkerEndTime},
                                {start: tc.dispatchFetchEventStartTime,
                                 end:   tc.dispatchFetchEventEndTime},
                                {start: tc.handleFetchEventStartTime,
                                 end:   tc.handleFetchEventEndTime}];
    if (aIntercepted) {
      serviceWorkerTimings.reduce((aPreviousTimings, aCurrentTimings) => {
        ok(aPreviousTimings.start <= aCurrentTimings.start,
           "Start time order check.");
        ok(aPreviousTimings.end <= aCurrentTimings.end,
           "End time order check.");
        ok(aCurrentTimings.start <= aCurrentTimings.end,
           "Start time should be smaller than end time.");
        return aCurrentTimings;
      });
    } else {
      serviceWorkerTimings.forEach(aTimings => {
        is(aTimings.start, 0);
        is(aTimings.end, 0);
      });
    }

    // Check network related timings.
    var networkTimings = [tc.domainLookupStartTime,
                          tc.domainLookupEndTime,
                          tc.connectStartTime,
                          tc.connectEndTime,
                          tc.requestStartTime,
                          tc.responseStartTime,
                          tc.responseEndTime];
    if (aFetch) {
      networkTimings.reduce((aPreviousTiming, aCurrentTiming) => {
        ok(aPreviousTiming <= aCurrentTiming);
        return aCurrentTiming;
      });
    } else {
      networkTimings.forEach(aTiming => is(aTiming, 0));
    }

    SpecialPowers.removeObserver(observer, topic);
    resolveFunction();
  }

  SpecialPowers.addObserver(observer, topic, false);

  // return promise;
  return Promise.all([aWindow.fetch(aURL), promise]);
}

function runTest() {
  return Promise.resolve()
    .then(_ => createTestWindow(contentPage))
    .then(w => executeTest(w))
    .catch(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>