/* vim: set ft=javascript ts=2 et sw=2 tw=80: */ /* Any copyright is dedicated to the Public Domain. http://creativecommons.org/publicdomain/zero/1.0/ */ "use strict"; /* import-globals-from inspector-helpers.js */ Services.scriptloader.loadSubScript("chrome://mochitests/content/browser/devtools/server/tests/browser/inspector-helpers.js", this); add_task(async function testRemoveSubtree() { const { target, walker } = await initInspectorFront(MAIN_DOMAIN + "inspector-traversal-data.html"); await ContentTask.spawn(gBrowser.selectedBrowser, null, function() { function ignoreNode(node) { // Duplicate the walker logic to skip blank nodes... return node.nodeType === Node.TEXT_NODE && !/[^\s]/.test(node.nodeValue); } let nextSibling = content.document.querySelector("#longlist").nextSibling; while (nextSibling && ignoreNode(nextSibling)) { nextSibling = nextSibling.nextSibling; } let previousSibling = content.document.querySelector("#longlist").previousSibling; while (previousSibling && ignoreNode(previousSibling)) { previousSibling = previousSibling.previousSibling; } content.nextSibling = nextSibling; content.previousSibling = previousSibling; }); let originalOwnershipSize = 0; const longlist = await walker.querySelector(walker.rootNode, "#longlist"); const longlistID = longlist.actorID; await walker.children(longlist); originalOwnershipSize = await assertOwnershipTrees(walker); // Here is how the ownership tree is summed up: // #document 1 // 1 // 1 //

1 //

a

26*2 (each child plus it's singleTextChild) // ... //

z

// ----- // 56 is(originalOwnershipSize, 56, "Correct number of items in ownership tree"); const onMutation = waitForMutation(walker, isChildList); const siblings = await walker.removeNode(longlist); await ContentTask.spawn(gBrowser.selectedBrowser, [siblings.previousSibling.actorID, siblings.nextSibling.actorID], function([previousActorID, nextActorID]) { const { require } = ChromeUtils.import("resource://devtools/shared/Loader.jsm"); const { DebuggerServer } = require("devtools/server/main"); // Convert actorID to current compartment string otherwise // searchAllConnectionsForActor is confused and won't find the actor. previousActorID = String(previousActorID); nextActorID = String(nextActorID); const previous = DebuggerServer.searchAllConnectionsForActor(previousActorID); const next = DebuggerServer.searchAllConnectionsForActor(nextActorID); is(previous.rawNode, content.previousSibling, "Should have returned the previous sibling."); is(next.rawNode, content.nextSibling, "Should have returned the next sibling."); }); await onMutation; // Our ownership size should now be 51 fewer (we forgot about #longlist + 26 // children + 26 singleTextChild nodes, but learned about #longlist's // prev/next sibling) const newOwnershipSize = await assertOwnershipTrees(walker); is(newOwnershipSize, originalOwnershipSize - 51, "Ownership tree should be lower"); // Now verify that some nodes have gone away return checkMissing(target, longlistID); });