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ComfyAssets-ComfyUI_PromptM…/tests/js/workspace-local-session.test.js
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Vito b2cc489fd4 feat(inspect): copy settings summary and local workflow roles (#286) 
* feat(inspect): copy settings summary in the full inspector

The legacy metadata page's COPY ALL (LI-4) becomes "Copy settings summary"
after the six facts of the shared full inspector, so the Images viewer,
the recorded history's current file and Inspect all offer it; the Images
side panel keeps the concept's footer. The text is the legacy copyAllData
template with its placeholders, filled from what the inspector shows. A
unit test runs the template read from web/metadata.html on the legacy
parse of every parity PNG: 22 of 25 are byte-equal, and the other three
differ only by the ZeroOut guard (#249) or facts the legacy parse missed.

Copying follows the concept's prompt copy: the toast "Settings summary
copied.", or the select-to-copy dialog (now titled per copy) without a
clipboard. The concept comparisons map the button as D-NEW-1.

* feat(inspect): local execution evidence and prompt tracing

A browser port of the server's inspection resolver for one sampler
(PR L3 Task 8, LI-1). local-resolver.mjs answers inspect_prompt_evidence's
{prompts, resolution} for a local read's records: execution evidence
(read_pair_execution and its per-node match), every traced strategy
(encoders, strings, concatenations, PromptManager and its historical
classes, passthrough, zeroed, selector branches, composites, guiders),
the latent stage walk, the R1 overwritten-text guard and the inspection
profile's visit, depth, text, path, built and scanned bounds, with the
same reason codes and outcome lines. py-json.mjs reads the records as
CPython's json.loads does (dict order and last-wins keys, int versus
float, BigInt past 2^53, NaN) and measures and strips text as str does.
Several sampler candidates, detailer stages and A1111 parameters raise
LocalResolverGap until Task 9. Nothing is wired into Inspect yet.

Python is the oracle: test_local_inspect_parity compares the port with
the server on the parity corpus, 107 named record sets, every work bound
at its edge and 600 seeded fuzzed graphs, and requires gaps to be exactly
the Task 9 paths. Sixteen porting mutations each fail the suite. The
Node unit test replays committed server answers, which the Python suite
keeps current.

* fix(inspect): a list or object workflow node type answers malformed

The R1 overwritten-text check looked every UI workflow node's `type` up
among the subgraph IDs. A `type` that is a JSON list or object raised
TypeError there, so the inspect route answered 500 "Prompt inspection
failed". Such a workflow is now malformed evidence: the resolution is
unresolved with reason_code `malformed` and the inspector's own
"Prompt evidence is malformed" line, never exception text.

The browser port answers the same, and the parity corpus gains the
list, object, nested-subgraph and skipped-ID shapes.

* fix(inspect): a list or object graph class_type is never a preview output

With several sampler candidates the inspector first drops stages whose
outputs reach only previews. That pass looked each API graph node's
`class_type` up in the preview class set, so a list or object
`class_type` raised TypeError and the inspect route answered 500. Only
a string names a class now; such a node is an ordinary terminal, as the
rest of the resolver already treats it.

* feat(inspect): local candidate selection matching the inspector

The browser port of the inspection resolver now answers every record set
the server does, so no path is left to the server any more:

- several sampler candidates, with the identical-branch rule (#270): a
  compare grid whose branches all resolve to one pair (text and recipe)
  is resolved, any other mix is ambiguous;
- stages whose outputs reach only previews are dropped first;
- detailer stages are judged with the samplers in their image ancestry
  (multistage-differs, cycles, depth and the per-stage visit budgets),
  and a sampler that only feeds detailers is not a candidate of its own;
- A1111 `parameters`, with Python's multiline anchors, `\s` and Unicode
  `\d`, the bare footer and Template trailers, counted in code points.

The parity corpus gains the selection cases and a seeded fuzzer, and
every inspection vector now gives the server's prompts, resolution and
facts locally. 16 of 17 mutations are caught; the uncaught one (not
flattening an ambiguous upstream stage) cannot change any answer.

* feat(inspect): local prompts resolved like the server's

A file chosen on the Inspect page now shows the prompts and resolution
the server's inspector gives the same records: buildLocalPayload takes
its roles from the local resolver instead of the interim open roles, so
the legacy fill applies exactly where it does for Images.

The resolver reads the server's own node table. The page fetches
web/js/inspection-semantics.json once through the API client as it
mounts, before any selection; the static route serves that one JSON
file by exact path (every other JSON stays forbidden). A table that
cannot be fetched answers "The inspector's node table is unavailable."
as the server does, and a later selection asks again.

The Copy settings summary deviation is numbered D117.

* fix(inspect): skip a workflow node whose type is a list or object

The overwritten-PromptManager walk now skips such a node, on the server
and in the browser port, instead of marking the whole file malformed.
A prompt that resolves still resolves; the other nodes still feed the
check.

* fix(inspect): one JSON depth cap for both browser parsers

py-json.mjs and local-video.mjs now refuse past the same 1,000 nested
arrays or objects, counting every container as CPython's scanner does.
Boundary vectors at 999, 1,000 and 1,001 for a deep prompt and a deep
workflow run through the Python oracle, and TESTING.md gives the
measured per-version server limits and both divergence directions.

* fix(inspect): realpath containment for the exact-path node table route

inspection-semantics.json now goes through the same realpath check as
every other static file, so a symlink out of web/ is refused. The
forbidden-path test asserts exactly 403.

* fix(inspect): abortable, stepped local reads with a busy state

The wait for the node table now ends with the selection's signal. A
local read resolves and projects in bounded steps with a turn of the
event loop between them, and the inspector carries aria-busy while it
loads. A budget test covers maximal 2 MiB graphs and checks the stepped
read is byte-identical to one synchronous build. The D117 wrap rule now
targets only the summary button, and TESTING.md scopes the restart line
to PRs L1 and L2.

* fix(inspect): record the two CPython-JSON emulations as a follow-up
2026-10-23 01:38:36 -07:00

409 lines
22 KiB
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// web/js/workspace/local-session.mjs owns one local selection at a time: it
// classifies the chosen File by its bytes, creates the blob: URL only for a
// classified file, hands an owned handle to a real inspection controller, and
// releases the URL, the handle and the record on replacement, dispose, parent
// abort and page leave.
import test from "node:test";
import assert from "node:assert/strict";
import fs from "node:fs";
import path from "node:path";
import { createRequire } from "node:module";
import { fileURLToPath } from "node:url";
import { raw, ihdr, idat, iend, tEXt } from "./helpers/png-bytes.mjs";
import { createScope } from "../../web/js/shared/toolkit/core.js";
const here = path.dirname(fileURLToPath(import.meta.url));
const require = createRequire(import.meta.url);
const PngMetadata = require("../../web/js/png-metadata.js");
const ComfyMetadata = require("../../web/js/comfy-metadata.js");
globalThis.PngMetadata = PngMetadata;
globalThis.ComfyMetadata = ComfyMetadata;
const m = await import("../../web/js/workspace/local-session.mjs").catch((error) => {
if (error.code !== "ERR_MODULE_NOT_FOUND") throw error;
return {};
});
const { localFileAdapter } = await import("../../web/js/workspace/local-inspection.mjs");
const FIXTURES = path.join(here, "..", "fixtures", "local-inspect");
const promptFor = (text) => JSON.stringify({ 3: { class_type: "KSampler", inputs: { seed: 7, steps: 20, cfg: 8, sampler_name: "euler", scheduler: "normal", model: ["4", 0], positive: ["6", 0], negative: ["7", 0] } },
4: { class_type: "CheckpointLoaderSimple", inputs: { ckpt_name: "m.safetensors" } }, 6: { class_type: "CLIPTextEncode", inputs: { text, clip: ["4", 1] } }, 7: { class_type: "CLIPTextEncode", inputs: { text: "blurry", clip: ["4", 1] } } });
const MODIFIED = 1_700_000_000_000;
/** A File that records each slice and lets a test hold slice reads (`gate(index)` returns a promise). */
class RecordingFile extends File {
constructor(parts, name, { gate, ...options } = {}) {
super(parts, name, { lastModified: MODIFIED, ...options });
this.ranges = [];
this.gate = gate;
}
slice(start, end) {
const index = this.ranges.push([start, end]) - 1;
const part = super.slice(start, end), gate = this.gate;
return { size: part.size, arrayBuffer: async () => { if (gate) await gate(index); return part.arrayBuffer(); } };
}
}
const pngFile = (name, text = "a red fox", options) => new RecordingFile([raw(ihdr(64, 48), idat(), tEXt("prompt", promptFor(text)), iend())], name, { type: "image/png", ...options });
const fixture = (name, as = name) => new RecordingFile([fs.readFileSync(path.join(FIXTURES, name))], as);
function deferred() {
let resolve, reject;
const promise = new Promise((ok, fail) => { resolve = ok; reject = fail; });
return { promise, resolve, reject };
}
const settle = async () => { for (let i = 0; i < 30; i++) await new Promise((resolve) => setImmediate(resolve)); };
function urls({ fail = false } = {}) {
const created = [], revoked = [];
return {
created, revoked,
createObjectURL(file) { if (fail) throw new Error("no object URLs"); const url = `blob:http://localhost/${created.length + 1}`; created.push({ url, file }); return url; },
revokeObjectURL(url) { revoked.push(url); },
};
}
function pageTarget() {
const listeners = new Map();
return {
listeners,
addEventListener(type, callback) { listeners.set(type, callback); },
removeEventListener(type, callback) { if (listeners.get(type) === callback) listeners.delete(type); },
fire(type) { listeners.get(type)?.({ type }); },
};
}
function session(options = {}) {
const parentScope = options.parentScope ?? createScope(), spies = options.urls ?? urls(), page = options.page ?? pageTarget();
const value = m.createLocalSession({ parentScope, createObjectURL: spies.createObjectURL, revokeObjectURL: spies.revokeObjectURL,
schedulerYield: () => Promise.resolve(), pageTarget: page, extractFacts: ComfyMetadata.extractGenerationFacts, ...options.overrides });
return { session: value, parentScope, urls: spies, page };
}
/** Resolves with the first controller state `predicate` accepts. */
function until(controller, predicate) {
return new Promise((resolve) => {
let stop = null, done = false;
stop = controller.subscribe((state) => { if (!done && predicate(state)) { done = true; resolve(state); stop?.(); } });
if (done) stop();
});
}
const recorded = (controller) => until(controller, (state) => state.record !== null || state.error);
test("contract", () => {
assert.equal(typeof m.createLocalSession, "function", "createLocalSession is exported");
assert.equal(typeof m.createYield, "function", "createYield is exported");
assert.deepEqual(Object.keys(m.LOCAL_SESSION_MESSAGES).sort(), ["containerOnly", "directory", "multiple", "previewFailed", "unreadable", "unsupported"]);
const { session: value } = session();
for (const name of ["select", "retry", "subscribe", "dispose"]) assert.equal(typeof value[name], "function", name);
assert.equal(value.state.phase, "empty");
assert.equal(value.state.preview, null);
assert.equal(value.entry, null);
assert.equal(typeof value.controller.select, "function");
value.dispose();
});
test("replacement synchronously clears old capabilities", async () => {
const { session: value, urls: spies } = session();
const states = [];
value.subscribe((state) => states.push({ ...state, revokedAtPublish: spies.revoked.length }));
// Two different Files with the same name, size and time are two selections.
const a = pngFile("same.png", "first fox"), b = pngFile("same.png", "other fox");
assert.equal(a.size, b.size);
assert.equal(value.select([a]), "accepted");
assert.equal(value.state.phase, "classifying");
const first = await recorded(value.controller);
assert.equal(first.record.prompts.positive.text, "first fox");
const entryA = value.entry, urlA = spies.created[0].url;
assert.deepEqual([entryA.filename, entryA.is_video], ["same.png", false]);
assert.deepEqual(value.state.preview, { url: urlA, media: "image" });
assert.equal(localFileAdapter.originalDownload(entryA).url, urlA);
const before = states.length;
assert.equal(value.select([b]), "accepted");
// Synchronously: no record, no entry, no preview, the old URL revoked once and the old handle foreign.
assert.equal(value.controller.state.record, null);
assert.equal(value.entry, null);
assert.equal(value.state.preview, null);
assert.deepEqual(spies.revoked, [urlA]);
for (const method of ["originalDownload", "mediaUrl", "key"]) assert.throws(() => localFileAdapter[method](entryA), TypeError, method);
assert.throws(() => localFileAdapter.originalDownload({ ...entryA }), TypeError, "a copy of a released handle is foreign too");
// The preview left the published state before its URL was revoked.
assert.deepEqual([states[before].phase, states[before].preview, states[before].revokedAtPublish], ["classifying", null, 0]);
const second = await recorded(value.controller);
assert.equal(second.record.prompts.positive.text, "other fox");
assert.notEqual(value.entry.key, entryA.key);
assert.equal(spies.revoked.length, 1);
// A read still in flight when the next file arrives never publishes.
const held = deferred(), published = [];
value.controller.subscribe((state) => { if (state.record) published.push(state.record.identity.key); });
const slow = pngFile("slow.png", "late fox", { gate: (index) => (index < 2 ? Promise.resolve() : held.promise) });
value.select([slow]);
await until(value.controller, (state) => state.loading);
const slowKey = value.entry.key;
assert.equal(value.select([pngFile("next.png", "current fox")]), "accepted");
held.resolve();
const current = await recorded(value.controller);
await settle();
assert.equal(current.record.prompts.positive.text, "current fox");
assert.ok(!published.includes(slowKey), "the replaced read never published");
assert.equal(value.controller.state.record.prompts.positive.text, "current fox");
value.dispose();
assert.equal(new Set(spies.revoked).size, spies.revoked.length, "each URL revoked once");
assert.deepEqual(spies.revoked.sort(), spies.created.map((item) => item.url).sort());
});
test("cancel and invalid drops keep the previous selection", async () => {
const { session: value, urls: spies } = session();
value.select([pngFile("kept.png", "kept fox")]);
await recorded(value.controller);
const entry = value.entry, state = value.state;
const directory = new File([], "folder");
const drops = [
[[], "rejected-empty"], [{ files: [], items: [] }, "rejected-empty"], [null, "ignored"], [undefined, "ignored"],
[[pngFile("one.png"), pngFile("two.png")], "rejected-multiple"],
[{ files: [pngFile("one.png"), pngFile("two.png")], items: [{ kind: "file" }, { kind: "file" }] }, "rejected-multiple"],
[{ files: [directory], items: [{ kind: "file", webkitGetAsEntry: () => ({ isDirectory: true, isFile: false }) }] }, "rejected-directory"],
[{ files: [], items: [{ kind: "string" }] }, "rejected-empty"],
];
for (const [input, outcome] of drops) {
assert.equal(value.select(input), outcome, JSON.stringify(input));
assert.equal(value.entry, entry);
assert.equal(value.state, state);
assert.equal(value.controller.state.record.prompts.positive.text, "kept fox");
}
assert.equal(spies.created.length, 1);
assert.deepEqual(spies.revoked, []);
// One File in a DataTransfer whose entry is a file is accepted.
assert.equal(value.select({ files: [pngFile("dropped.png", "dropped fox")], items: [{ kind: "file", webkitGetAsEntry: () => ({ isDirectory: false, isFile: true }) }] }), "accepted");
assert.equal((await recorded(value.controller)).record.prompts.positive.text, "dropped fox");
value.dispose();
});
test("unclassified input creates no object URL", async () => {
const { session: value, urls: spies } = session();
const text = (body, name) => new RecordingFile([body], name);
for (const file of [text("plain text", "a.png"), text("<!doctype html><p>hi", "a.mp4"), text('<svg xmlns="http://www.w3.org/2000/svg"/>', "a.png"),
text("#EXTM3U\n#EXT-X-VERSION:3\n", "a.mp4"), new RecordingFile([], "empty.png")]) {
assert.equal(value.select([file]), "accepted");
await settle();
assert.equal(value.state.phase, "unsupported", file.name);
assert.equal(value.state.message, m.LOCAL_SESSION_MESSAGES.unsupported);
assert.equal(value.state.preview, null);
assert.equal(value.entry, null);
assert.equal(value.controller.state.record, null);
assert.ok(file.ranges.every(([start, end]) => start === 0 && end <= 32), "only the prefix is read");
}
// A file that cannot be read after choosing (removed or denied) is not an unsupported type: when the browser
// declares a supported type it opens the inspector's unreadable state, with no preview and no URL (ledger ruling).
const gone = pngFile("gone.png", "fox", { gate: () => Promise.reject(new DOMException("The file was removed", "NotReadableError")) });
assert.equal(value.select([gone]), "accepted");
// The read yields between its steps (local-inspection.mjs): wait for the answer, not a fixed number of turns.
const unreadable = await recorded(value.controller);
assert.ok(unreadable.record, "the unreadable record is published");
assert.deepEqual([value.state.phase, value.state.message, value.state.preview], ["ready", m.LOCAL_SESSION_MESSAGES.unreadable, null]);
assert.equal(m.LOCAL_SESSION_MESSAGES.unreadable, "Embedded metadata could not be read.");
assert.equal(value.entry.filename, "gone.png");
assert.equal(unreadable.record.metadata.status, "unreadable");
assert.equal(unreadable.record.download, null);
assert.equal(spies.created.length, 0);
// A prefix read that fails for another reason than the browser's read failure is not claimed as unreadable.
const broken = pngFile("broken.png", "fox", { gate: () => Promise.reject(new TypeError("not a read failure")) });
assert.equal(value.select([broken]), "accepted");
await settle();
assert.deepEqual([value.state.phase, value.state.message, value.entry], ["unsupported", m.LOCAL_SESSION_MESSAGES.unsupported, null]);
// A read failure for a selection already replaced publishes nothing for it.
const slow = deferred();
const replaced = pngFile("replaced.png", "fox", { gate: () => slow.promise });
value.select([replaced]);
await settle();
value.select([new RecordingFile([new Uint8Array(4)], "next.txt")]);
slow.reject(new DOMException("The file was removed", "NotReadableError"));
await settle();
assert.deepEqual([value.state.phase, value.entry], ["unsupported", null]);
// An unreadable file the browser declares no supported type for stays unsupported.
const unknown = new RecordingFile([new Uint8Array(8)], "gone.bin", { gate: () => Promise.reject(new DOMException("The file was removed", "NotReadableError")) });
assert.equal(value.select([unknown]), "accepted");
await settle();
assert.deepEqual([value.state.phase, value.state.message, value.entry], ["unsupported", m.LOCAL_SESSION_MESSAGES.unsupported, null]);
assert.equal(spies.created.length, 0);
// A real MP4 named .png is a video by its bytes.
value.select([fixture("core-faststart.mp4", "clip.png")]);
await settle();
assert.equal(value.state.phase, "ready");
assert.equal(value.state.preview.media, "video");
assert.equal(value.entry.is_video, true);
assert.equal(spies.created.length, 1);
value.dispose();
});
test("video record publishes even if preview fails", async () => {
const { session: value } = session({ urls: urls({ fail: true }) });
value.select([fixture("core-tags.webm")]);
const state = await recorded(value.controller);
assert.equal(value.state.phase, "ready");
assert.equal(value.state.preview, null);
assert.equal(value.state.message, m.LOCAL_SESSION_MESSAGES.previewFailed);
assert.equal(value.entry.is_video, true);
assert.equal(state.error, false);
assert.equal(state.record.file.media_type, "video");
assert.equal(state.record.metadata.status, "available");
assert.equal(state.record.generation.seed.value, "7");
assert.equal(state.record.download, null, "no original without an object URL");
value.dispose();
// AVI keeps its preview and says its metadata is not read.
const avi = session();
avi.session.select([new RecordingFile([Buffer.from("RIFF"), new Uint8Array(4), Buffer.from("AVI LIST"), new Uint8Array(64)], "clip.avi")]);
await recorded(avi.session.controller);
assert.equal(avi.session.state.message, m.LOCAL_SESSION_MESSAGES.containerOnly);
assert.equal(avi.session.state.preview.media, "video");
avi.session.dispose();
});
test("disposal settles a pending fallback yield", async () => {
const timers = new Map(), cleared = [];
let serial = 0;
const setTimer = (callback, delay) => { assert.equal(delay, 0); timers.set(++serial, callback); return serial; };
const clearTimer = (token) => { cleared.push(token); timers.delete(token); };
// The yield itself: a timer that rejects with AbortError on abort and removes its listener.
const yieldControl = m.createYield({ schedulerYield: null, setTimer, clearTimer });
const controller = new AbortController();
const pending = yieldControl(controller.signal);
assert.equal(timers.size, 1);
controller.abort();
await assert.rejects(pending, { name: "AbortError" });
assert.deepEqual(cleared, [1], "the timer is cleared on abort (the once listener is gone with it)");
// A turn that completes removes its abort listener, so a long-lived signal does not collect them.
const kept = new AbortController(), removed = [];
const remove = kept.signal.removeEventListener.bind(kept.signal);
kept.signal.removeEventListener = (type, callback) => { removed.push(type); remove(type, callback); };
const ok = yieldControl(kept.signal);
timers.get(2)();
await ok;
assert.deepEqual(removed, ["abort"]);
await assert.rejects(yieldControl(AbortSignal.abort()), { name: "AbortError" });
// The session: a selection waiting on the fallback yield is settled by dispose and does no work.
timers.clear(); cleared.length = 0;
const { session: value, urls: spies } = session({ overrides: { schedulerYield: null, setTimer, clearTimer } });
const file = pngFile("a.png");
value.select([file]);
assert.equal(timers.size, 1);
const [token] = timers.keys();
value.dispose();
assert.deepEqual(cleared, [token]);
await settle();
assert.deepEqual(file.ranges, []);
assert.equal(spies.created.length, 0);
});
test("old scheduler.yield continuation is fenced", async () => {
const turns = [];
const { session: value, urls: spies } = session({ overrides: { schedulerYield: () => { const turn = deferred(); turns.push(turn); return turn.promise; } } });
const a = pngFile("a.png", "old fox"), b = pngFile("b.png", "new fox");
value.select([a]);
value.select([b]);
assert.equal(turns.length, 2);
turns[0].resolve();
await settle();
assert.deepEqual(a.ranges, [], "the replaced selection never reads");
assert.equal(spies.created.length, 0);
assert.equal(value.state.phase, "classifying");
turns[1].resolve();
const state = await recorded(value.controller);
assert.equal(state.record.prompts.positive.text, "new fox");
assert.deepEqual(spies.created.map((item) => item.file), [b]);
// A continuation that resumes after dispose is fenced too.
value.select([pngFile("c.png")]);
const late = turns.at(-1);
value.dispose();
late.resolve();
await settle();
assert.equal(spies.created.length, 1);
});
test("retry rereads identically", async () => {
const { session: value } = session();
const file = pngFile("a.png", "retry fox");
value.select([file]);
const first = await recorded(value.controller);
const classified = 1, reads = file.ranges.slice(classified);
assert.ok(reads.length > 1);
const key = value.entry.key;
await value.retry();
const again = value.controller.state;
assert.deepEqual(file.ranges.slice(classified + reads.length), reads, "the same slice ranges");
assert.equal(again.record.identity.key, key);
assert.equal(again.record.identity.key, first.record.identity.key);
assert.equal(again.record.prompts.positive.text, "retry fox");
value.dispose();
assert.equal(value.retry(), undefined, "a disposed session never reads");
assert.equal(file.ranges.length, classified + 2 * reads.length);
});
test("already disposed parent does zero work", () => {
const parentScope = createScope();
parentScope.dispose();
const fail = (name) => () => assert.fail(`${name} called`);
const page = { addEventListener: fail("addEventListener"), removeEventListener: fail("removeEventListener") };
const value = m.createLocalSession({ parentScope, createObjectURL: fail("createObjectURL"), revokeObjectURL: fail("revokeObjectURL"),
schedulerYield: fail("schedulerYield"), setTimer: fail("setTimer"), clearTimer: fail("clearTimer"), pageTarget: page });
const file = pngFile("a.png");
assert.equal(value.select([file]), "ignored");
assert.equal(value.retry(), undefined);
assert.equal(value.entry, null);
assert.equal(value.state.phase, "empty");
const unsubscribe = value.subscribe(fail("listener"));
unsubscribe();
value.dispose(); value.dispose();
assert.deepEqual(file.ranges, []);
});
test("dispose, parent abort and page leave each release the URL once", async () => {
// dispose: the preview is cleared for subscribers before its URL is revoked.
const first = session(), seen = [];
first.session.select([pngFile("a.png")]);
await recorded(first.session.controller);
first.session.subscribe((state) => seen.push([state.phase, state.preview, first.urls.revoked.length]));
first.session.dispose(); first.session.dispose();
assert.deepEqual(seen.at(-1), ["empty", null, 0]);
assert.deepEqual(first.urls.revoked, [first.urls.created[0].url]);
assert.equal(first.session.select([pngFile("b.png")]), "ignored");
assert.equal(first.page.listeners.size, 0, "the page listener is removed");
// Parent abort disposes.
const second = session();
second.session.select([pngFile("a.png")]);
await recorded(second.session.controller);
second.parentScope.dispose();
assert.deepEqual(second.urls.revoked, [second.urls.created[0].url]);
assert.equal(second.session.controller.state.record, null);
assert.equal(second.page.listeners.size, 0);
// pagehide releases the selection; a page restored from the back/forward cache can choose again.
const third = session();
third.session.select([pngFile("a.png")]);
await recorded(third.session.controller);
const entry = third.session.entry;
third.page.fire("pagehide");
assert.deepEqual(third.urls.revoked, [third.urls.created[0].url]);
assert.equal(third.session.entry, null);
assert.equal(third.session.state.phase, "empty");
assert.equal(third.session.controller.state.record, null);
assert.throws(() => localFileAdapter.originalDownload(entry), TypeError);
third.page.fire("pagehide");
assert.equal(third.urls.revoked.length, 1);
assert.equal(third.session.select([pngFile("b.png", "after return")]), "accepted");
assert.equal((await recorded(third.session.controller)).record.prompts.positive.text, "after return");
third.session.dispose();
assert.equal(third.urls.revoked.length, 2);
// A page that owns page leave passes no pageTarget and ends the selection with clear(), as pagehide would.
const owned = session({ overrides: { pageTarget: null } });
owned.session.select([pngFile("a.png")]);
await recorded(owned.session.controller);
assert.equal(owned.page.listeners.size, 0, "no pagehide listener of its own");
owned.session.clear();
assert.deepEqual(owned.urls.revoked, [owned.urls.created[0].url]);
assert.equal(owned.session.entry, null);
assert.equal(owned.session.state.phase, "empty");
owned.session.clear();
assert.equal(owned.urls.revoked.length, 1, "clear is idempotent");
assert.equal(owned.session.select([pngFile("b.png")]), "accepted");
await recorded(owned.session.controller);
owned.session.dispose();
owned.session.clear();
assert.equal(owned.urls.revoked.length, 2);
});
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