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Test Info: Warnings
- This test gets skipped with pattern: http3 OR http2
- Manifest: devtools/server/tests/browser/browser.toml
/* Any copyright is dedicated to the Public Domain.
"use strict";
Services.scriptloader.loadSubScript(
this
);
add_task(async function testRemoveSubtree() {
const { target, walker } = await initInspectorFront(
MAIN_DOMAIN + "inspector-traversal-data.html"
);
await SpecialPowers.spawn(gBrowser.selectedBrowser, [], function () {
function ignoreNode(node) {
// Duplicate the walker logic to skip blank nodes...
return (
node.nodeType === content.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
// <html> 1
// <body> 1
// <div id=longlist> 1
// <div id=a>a</div> 26*2 (each child plus it's singleTextChild)
// ...
// <div id=z>z</div>
// -----
// 56
is(originalOwnershipSize, 56, "Correct number of items in ownership tree");
const onMutation = waitForMutation(walker, isChildList);
const siblings = await walker.removeNode(longlist);
await SpecialPowers.spawn(
gBrowser.selectedBrowser,
[[siblings.previousSibling.actorID, siblings.nextSibling.actorID]],
function ([previousActorID, nextActorID]) {
const { require } = ChromeUtils.importESModule(
);
const {
DevToolsServer,
// Convert actorID to current compartment string otherwise
// searchAllConnectionsForActor is confused and won't find the actor.
previousActorID = String(previousActorID);
nextActorID = String(nextActorID);
const previous =
DevToolsServer.searchAllConnectionsForActor(previousActorID);
const next = DevToolsServer.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);
});