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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /devtools/server/tests/mochitest/test_inspector-retain.html
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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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 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} = require("devtools/shared/fronts/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>
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