The Tor Browser: toolkit/devtools/server/tests/mochitest/test_inspector-retain.html@6474c204b198 (annotated)

toolkit/devtools/server/tests/mochitest/test_inspector-retain.html@6474c204b198 (annotated)

toolkit/devtools/server/tests/mochitest/test_inspector-retain.html

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 <!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">
 Components.utils.import("resource://gre/modules/devtools/Loader.jsm");
 const {Promise: promise} = Components.utils.import("resource://gre/modules/Promise.jsm", {});
 const inspector = devtools.require("devtools/server/actors/inspector");
 window.onload = function() {
   SimpleTest.waitForExplicitFinish();
   runNextTest();
 }
 var gWalker = null;
 var gClient = null;
 var gInspectee = null;
 function assertOwnership() {
   return assertOwnershipTrees(gWalker);
 }
 addTest(function setup() {
   let url = document.getElementById("inspectorContent").href;
   attachURL(url, function(err, client, tab, doc) {
     gInspectee = doc;
     let {InspectorFront} = devtools.require("devtools/server/actors/inspector");
     let inspector = InspectorFront(client, tab);
     promiseDone(inspector.getWalker().then(walker => {
       ok(walker, "getWalker() should return an actor.");
       gClient = client;
       gWalker = walker;
     }).then(runNextTest));
   });
 });
 // Retain a node, and a second-order child (in another document, for kicks)
 // Release the parent of the top item, which should cause one retained orphan.
 // Then unretain the top node, which should retain the orphan.
 // Then change the source of the iframe, which should kill that orphan.
 addTest(function testRetain() {
   let originalOwnershipSize = 0;
   let bodyFront = null;
   let frameFront = null;
   let childListFront = null;
   // Get the toplevel body element and retain it.
   promiseDone(gWalker.querySelector(gWalker.rootNode, "body").then(front => {
     bodyFront = front;
     return gWalker.retainNode(bodyFront);
   }).then(() => {
     // Get an element in the child frame and retain it.
     return gWalker.querySelector(gWalker.rootNode, "#childFrame");
   }).then(frame => {
     frameFront = frame;
     return gWalker.children(frame, { maxNodes: 1 }).then(children => {
       return children.nodes[0];
     });
   }).then(childDoc => {
     return gWalker.querySelector(childDoc, "#longlist");
   }).then(list => {
     childListFront = list;
     originalOwnershipSize = assertOwnership();
     // and rtain it.
     return gWalker.retainNode(childListFront);
   }).then(() => {
     // OK, try releasing the parent of the first retained.
     return gWalker.releaseNode(bodyFront.parentNode());
   }).then(() => {
     let size = assertOwnership();
     let clientTree = clientOwnershipTree(gWalker);
     // That request should have freed the parent of the first retained
     // but moved the rest into the retained orphaned tree.
     is(ownershipTreeSize(clientTree.root) + ownershipTreeSize(clientTree.retained[0]) + 1,
        originalOwnershipSize,
        "Should have only lost one item overall.");
     is(gWalker._retainedOrphans.size, 1, "Should have retained one orphan");
     ok(gWalker._retainedOrphans.has(bodyFront), "Should have retained the expected node.");
   }).then(() => {
     // Unretain the body, which should promote the childListFront to a retained orphan.
     return gWalker.unretainNode(bodyFront);
   }).then(() => {
     assertOwnership();
     let clientTree = clientOwnershipTree(gWalker);
     is(gWalker._retainedOrphans.size, 1, "Should still only have one retained orphan.");
     ok(!gWalker._retainedOrphans.has(bodyFront), "Should have dropped the body node.")
     ok(gWalker._retainedOrphans.has(childListFront), "Should have retained the child node.")
   }).then(() => {
     // Change the source of the iframe, which should kill the retained orphan.
     gInspectee.querySelector("#childFrame").src = "data:text/html,<html>new child</html>";
     return waitForMutation(gWalker, isUnretained);
   }).then(mutations => {
     assertOwnership();
     let clientTree = clientOwnershipTree(gWalker);
     is(gWalker._retainedOrphans.size, 0, "Should have no more retained orphans.");
   }).then(runNextTest));
 });
 // Get a hold of a node, remove it from the doc and retain it at the same time.
 // We should always win that race (even though the mutation happens before the
 // retain request), because we haven't issued `getMutations` yet.
 addTest(function testWinRace() {
   let front = null;
   promiseDone(gWalker.querySelector(gWalker.rootNode, "#a").then(node => {
     front = node;
     let contentNode = gInspectee.querySelector("#a");
     contentNode.parentNode.removeChild(contentNode);
     // Now wait for that mutation and retain response to come in.
     return promise.all([
       gWalker.retainNode(front),
       waitForMutation(gWalker, isChildList)
     ]);
   }).then(() => {
     assertOwnership();
     let clientTree = clientOwnershipTree(gWalker);
     is(gWalker._retainedOrphans.size, 1, "Should have a retained orphan.");
     ok(gWalker._retainedOrphans.has(front), "Should have retained our expected node.");
     return gWalker.unretainNode(front);
   }).then(() => {
     // Make sure we're clear for the next test.
     assertOwnership();
     let clientTree = clientOwnershipTree(gWalker);
     is(gWalker._retainedOrphans.size, 0, "Should have no more retained orphans.");
   }).then(runNextTest));
 });
 // Same as above, but issue the request right after the 'new-mutations' event, so that
 // we *lose* the race.
 addTest(function testLoseRace() {
   let front = null;
   promiseDone(gWalker.querySelector(gWalker.rootNode, "#z").then(node => {
     front = node;
     gInspectee.querySelector("#z").parentNode = null;
     let contentNode = gInspectee.querySelector("#a");
     contentNode.parentNode.removeChild(contentNode);
     return promiseOnce(gWalker, "new-mutations");
   }).then(() => {
     // Verify that we have an outstanding request (no good way to tell that it's a
     // getMutations request, but there's nothing else it would be).
     is(gWalker._requests.length, 1, "Should have an outstanding request.");
     return gWalker.retainNode(front)
   }).then(() => { ok(false, "Request should not have succeeded!"); },
           (err) => {
     ok(err, "noSuchActor", "Should have lost the race.");
     let clientTree = clientOwnershipTree(gWalker);
     is(gWalker._retainedOrphans.size, 0, "Should have no more retained orphans.");
     // Don't re-throw the error.
   }).then(runNextTest));
 });
 addTest(function cleanup() {
   delete gWalker;
   delete gClient;
   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>

The Tor Browser / annotate

toolkit/devtools/server/tests/mochitest/test_inspector-retain.html@6474c204b198 (annotated)

toolkit/devtools/server/tests/mochitest/test_inspector-retain.html