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189029e823
These tests were using chrome mochitest which forces the test page to be running in chrome and in parent process. This doesn't reflect typical setup where the page runs unprivileged in content process. Also, with the current bug, the pages running in system principal will be debugged with a special setup. Actors will be run with modules loaded in a distinct loader in order to be executed in a distinct compartment, distinct from the shared system principal compartment. That a prerequisite for the Debugger API. It has to run in a distinct compartment than its debuggee. Depends on D16825 Differential Revision: https://phabricator.services.mozilla.com/D16826 --HG-- rename : devtools/server/tests/mochitest/animation-data.html => devtools/server/tests/browser/animation-data.html rename : devtools/server/tests/mochitest/test_inspector-mutations-childlist.html => devtools/server/tests/browser/browser_inspector-mutations-childlist.js rename : devtools/server/tests/mochitest/inspector-helpers.js => devtools/server/tests/browser/inspector-helpers.js extra : moz-landing-system : lando
125 lines
5.5 KiB
JavaScript
125 lines
5.5 KiB
JavaScript
/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
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/* Any copyright is dedicated to the Public Domain.
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http://creativecommons.org/publicdomain/zero/1.0/ */
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"use strict";
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/* import-globals-from inspector-helpers.js */
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Services.scriptloader.loadSubScript("chrome://mochitests/content/browser/devtools/server/tests/browser/inspector-helpers.js", this);
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// Retain a node, and a second-order child (in another document, for kicks)
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// Release the parent of the top item, which should cause one retained orphan.
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// Then unretain the top node, which should retain the orphan.
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// Then change the source of the iframe, which should kill that orphan.
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add_task(async function testRetain() {
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const { walker } =
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await initInspectorFront(MAIN_DOMAIN + "inspector-traversal-data.html");
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// Get the toplevel body element and retain it.
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const bodyFront = await walker.querySelector(walker.rootNode, "body");
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await walker.retainNode(bodyFront);
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// Get an element in the child frame and retain it.
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const frame = await walker.querySelector(walker.rootNode, "#childFrame");
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const children = await walker.children(frame, { maxNodes: 1 });
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const childDoc = children.nodes[0];
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const childListFront = await walker.querySelector(childDoc, "#longlist");
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const originalOwnershipSize = await assertOwnershipTrees(walker);
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// and retain it.
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await walker.retainNode(childListFront);
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// OK, try releasing the parent of the first retained.
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await walker.releaseNode(bodyFront.parentNode());
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const clientTree = clientOwnershipTree(walker);
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// That request should have freed the parent of the first retained
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// but moved the rest into the retained orphaned tree.
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is(ownershipTreeSize(clientTree.root) + ownershipTreeSize(clientTree.retained[0]) + 1,
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originalOwnershipSize,
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"Should have only lost one item overall.");
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is(walker._retainedOrphans.size, 1, "Should have retained one orphan");
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ok(walker._retainedOrphans.has(bodyFront),
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"Should have retained the expected node.");
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// Unretain the body, which should promote the childListFront to a retained orphan.
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await walker.unretainNode(bodyFront);
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await assertOwnershipTrees(walker);
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is(walker._retainedOrphans.size, 1, "Should still only have one retained orphan.");
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ok(!walker._retainedOrphans.has(bodyFront), "Should have dropped the body node.");
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ok(walker._retainedOrphans.has(childListFront),
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"Should have retained the child node.");
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// Change the source of the iframe, which should kill the retained orphan.
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const onMutations = waitForMutation(walker, isUnretained);
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await ContentTask.spawn(gBrowser.selectedBrowser, null, function() {
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content.document.querySelector("#childFrame").src =
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"data:text/html,<html>new child</html>";
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});
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await onMutations;
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await assertOwnershipTrees(walker);
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is(walker._retainedOrphans.size, 0, "Should have no more retained orphans.");
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});
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// Get a hold of a node, remove it from the doc and retain it at the same time.
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// We should always win that race (even though the mutation happens before the
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// retain request), because we haven't issued `getMutations` yet.
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add_task(async function testWinRace() {
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const { walker } =
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await initInspectorFront(MAIN_DOMAIN + "inspector-traversal-data.html");
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const front = await walker.querySelector(walker.rootNode, "#a");
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const onMutation = waitForMutation(walker, isChildList);
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ContentTask.spawn(gBrowser.selectedBrowser, null, function() {
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const contentNode = content.document.querySelector("#a");
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contentNode.remove();
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});
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// Now wait for that mutation and retain response to come in.
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await walker.retainNode(front);
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await onMutation;
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await assertOwnershipTrees(walker);
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is(walker._retainedOrphans.size, 1, "Should have a retained orphan.");
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ok(walker._retainedOrphans.has(front), "Should have retained our expected node.");
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await walker.unretainNode(front);
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// Make sure we're clear for the next test.
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await assertOwnershipTrees(walker);
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is(walker._retainedOrphans.size, 0, "Should have no more retained orphans.");
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});
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// Same as above, but issue the request right after the 'new-mutations' event, so that
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// we *lose* the race.
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add_task(async function testLoseRace() {
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const { walker } =
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await initInspectorFront(MAIN_DOMAIN + "inspector-traversal-data.html");
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const front = await walker.querySelector(walker.rootNode, "#z");
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const onMutation = walker.once("new-mutations");
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await ContentTask.spawn(gBrowser.selectedBrowser, null, function() {
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const contentNode = content.document.querySelector("#z");
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contentNode.remove();
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});
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await onMutation;
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// Verify that we have an outstanding request (no good way to tell that it's a
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// getMutations request, but there's nothing else it would be).
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is(walker._requests.length, 1, "Should have an outstanding request.");
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try {
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await walker.retainNode(front);
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ok(false, "Request should not have succeeded!");
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} catch (err) {
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// XXX: Switched to from ok() to todo_is() in Bug 1467712. Follow up in
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// 1500960
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// This is throwing because of
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// `gInspectee.querySelector("#z").parentNode = null;` two blocks above...
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// Even if you fix that, the test is still failing because "#a" was removed
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// by the previous test. I am switching this to "#z" because I think that
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// was the original intent. Still not failing with the expected error message
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// Needs more work.
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// ok(err, "noSuchActor", "Should have lost the race.");
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is(walker._retainedOrphans.size, 0, "Should have no more retained orphans.");
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// Don't re-throw the error.
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}
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});
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