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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=
-->
<head>
  <meta charset="utf-8">
  <title>Test for Bug </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">
  <script type="application/javascript;version=1.8" src="inspector-helpers.js"></script>
  <script type="application/javascript;version=1.8">
const inspector = require("devtools/shared/fronts/inspector");

window.onload = function() {
  SimpleTest.waitForExplicitFinish();
  runNextTest();
}

var gInspectee = null;
var gWalker = null;
var gClient = null;
var gChildFrame = null;
var gChildDocument = null;
var gCleanupConnection = null;

function setup(callback) {
  let url = document.getElementById("inspectorContent").href;
  gCleanupConnection = attachURL(url, function(err, client, tab, doc) {
    gInspectee = doc;
    let {InspectorFront} = require("devtools/shared/fronts/inspector");
    let inspector = InspectorFront(client, tab);
    promiseDone(inspector.getWalker().then(walker => {
      gClient = client;
      gWalker = walker;
    }).then(callback));
  });
}

function teardown() {
  gWalker = null;
  gClient = null;
  gInspectee = null;
  gChildFrame = null;
  if (gCleanupConnection) {
    gCleanupConnection();
    gCleanupConnection = null;
  }
}

function assertOwnership() {
  return assertOwnershipTrees(gWalker);
}

function loadChildSelector(selector) {
  return gWalker.querySelector(gWalker.rootNode, "#childFrame").then(frame => {
    ok(frame.numChildren > 0, "Child frame should consider its loaded document as a child.");
    gChildFrame = frame;
    return gWalker.children(frame);
  }).then(children => {
    return gWalker.querySelectorAll(children.nodes[0], selector);
  }).then(nodeList => {
    return nodeList.items();
  });
}

function getUnloadedDoc(mutations) {
  for (let change of mutations) {
    if (isUnload(change)) {
      return change.target;
    }
  }
  return null;
}

addTest(function loadNewChild() {
  setup(() => {
    let beforeUnloadSize = 0;
    // Load a bunch of fronts for actors inside the child frame.
    promiseDone(loadChildSelector("#longlist div").then(() => {
      let childFrame = gInspectee.querySelector("#childFrame");
      childFrame.src = "data:text/html,<html>new child</html>";
      return waitForMutation(gWalker, isChildList);
    }).then(mutations => {
      let unloaded = getUnloadedDoc(mutations);
      mutations = assertSrcChange(mutations);
      mutations = assertUnload(mutations);
      mutations = assertFrameLoad(mutations);
      mutations = assertChildList(mutations);

      is(mutations.length, 0, "Got the expected mutations.");

      assertOwnership();

      return checkMissing(gClient, unloaded);
    }).then(() => {
      teardown();
    }).then(runNextTest));
  });
});

addTest(function loadNewChildTwice() {
  setup(() => {
    let beforeUnloadSize = 0;
    // Load a bunch of fronts for actors inside the child frame.
    promiseDone(loadChildSelector("#longlist div").then(() => {
      let childFrame = gInspectee.querySelector("#childFrame");
      childFrame.src = "data:text/html,<html>new child</html>";
      return waitForMutation(gWalker, isChildList);
    }).then(mutations => {
      // The first load went through as expected (as tested in loadNewChild)
      // Now change the source again, but this time we *don't* expect
      // an unload, because we haven't seen the new child document yet.
      let childFrame = gInspectee.querySelector("#childFrame");
      childFrame.src = "data:text/html,<html>second new child</html>";
      return waitForMutation(gWalker, isChildList);
    }).then(mutations => {
      mutations = assertSrcChange(mutations);
      mutations = assertFrameLoad(mutations);
      mutations = assertChildList(mutations);
      ok(!getUnloadedDoc(mutations), "Should not have gotten an unload.");

      is(mutations.length, 0, "Got the expected mutations.");

      assertOwnership();
    }).then(() => {
      teardown();
    }).then(runNextTest));
  });
});


addTest(function loadNewChildTwiceAndCareAboutIt() {
  setup(() => {
    let beforeUnloadSize = 0;
    // Load a bunch of fronts for actors inside the child frame.
    promiseDone(loadChildSelector("#longlist div").then(() => {
      let childFrame = gInspectee.querySelector("#childFrame");
      childFrame.src = "data:text/html,<html>new child</html>";
      return waitForMutation(gWalker, isChildList);
    }).then(mutations => {
      // Read the new child
      return loadChildSelector("#longlist div");
    }).then(() => {
      // Now change the source again, and expect the same results as loadNewChild.
      let childFrame = gInspectee.querySelector("#childFrame");
      childFrame.src = "data:text/html,<html>second new child</html>";
      return waitForMutation(gWalker, isChildList);
    }).then(mutations => {
      let unloaded = getUnloadedDoc(mutations);

      mutations = assertSrcChange(mutations);
      mutations = assertUnload(mutations);
      mutations = assertFrameLoad(mutations);
      mutations = assertChildList(mutations);

      is(mutations.length, 0, "Got the expected mutations.");

      assertOwnership();

      return checkMissing(gClient, unloaded);
    }).then(() => {
      teardown();
    }).then(runNextTest));
  });
});

addTest(function testBack() {
  setup(() => {
    let beforeUnloadSize = 0;
    // Load a bunch of fronts for actors inside the child frame.
    promiseDone(loadChildSelector("#longlist div").then(() => {
      let childFrame = gInspectee.querySelector("#childFrame");
      childFrame.src = "data:text/html,<html>new child</html>";
      return waitForMutation(gWalker, isChildList);
    }).then(mutations => {
      // Read the new child
      return loadChildSelector("#longlist div");
    }).then(() => {
      // Now use history.back to change the source, and expect the same results as loadNewChild.
      let childFrame = gInspectee.querySelector("#childFrame");
      childFrame.contentWindow.history.back();
      return waitForMutation(gWalker, isChildList);
    }).then(mutations => {
      let unloaded = getUnloadedDoc(mutations);
      mutations = assertSrcChange(mutations);
      mutations = assertUnload(mutations);
      mutations = assertFrameLoad(mutations);
      mutations = assertChildList(mutations);
      is(mutations.length, 0, "Got the expected mutations.");

      assertOwnership();

      return checkMissing(gClient, unloaded);
    }).then(() => {
      teardown();
    }).then(runNextTest));
  });
});

  </script>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=">Mozilla Bug </a>
<a id="inspectorContent" target="_blank" href="inspector-traversal-data.html">Test Document</a>
<p id="display"></p>
<div id="content" style="display: none">

</div>
<pre id="test">
</pre>
</body>
</html>