Files
Multi-Hoster-Upload/tests/startup-renderer.test.js
T
Sucukdeluxe cfa138198f Buffer startup drops until renderer readiness
Keep a bounded FIFO of drop payloads while the startup or recovery document is not validated. Flush each payload exactly once only after the generation-checked renderer Ready signal, retain immediate delivery for a ready renderer, and discard stale payloads when the main window is destroyed or replaced.

Wire renderer block, Ready, and window-close transitions through main and cover recovery, safe failure visibility, stale Ready signals, ordered multi-drop delivery, queue bounds, lifecycle cleanup, and duplicate prevention.
2026-08-13 23:35:04 +02:00

1301 lines
36 KiB
JavaScript

const test = require('node:test');
const assert = require('node:assert/strict');
const { EventEmitter } = require('node:events');
const fs = require('node:fs');
const path = require('node:path');
const {
configureStartupRenderer,
createStartupCloseHandler,
createStartupExternalRevealBindings,
createStartupFailureDocument,
createStartupNavigationLoader,
createStartupRecoveryCoordinator,
createStartupRevealGate,
createStartupRendererHandlers,
createStartupWindow,
resolveStartupLanguage
} = require('../lib/startup-renderer');
test('startup failure document is a localized visible application surface', () => {
const english = createStartupFailureDocument('en');
const german = createStartupFailureDocument('de');
assert.match(english, /Multi Hoster Uploader/);
assert.match(english, /could not load/);
assert.match(english, /Close/);
assert.match(german, /konnte nicht geladen werden/);
assert.match(german, /Schließen/);
assert.doesNotMatch(english, /Electron/);
});
class TestBrowserWindow extends EventEmitter {
constructor(options) {
super();
this.options = options;
this.showCalls = 0;
this.startupEvents = [];
this.loadError = new Error('renderer load failed');
this.loadOptions = null;
}
once(eventName, listener) {
this.startupEvents.push(`listen:${eventName}`);
return super.once(eventName, listener);
}
show() {
this.showCalls++;
}
loadFile(target, options) {
this.startupEvents.push(`load:${target}`);
this.loadOptions = options;
return this.loadError ? Promise.reject(this.loadError) : Promise.resolve('loaded');
}
}
function createManualScheduler() {
let nextId = 1;
const pending = new Map();
return {
schedule(callback, delay) {
const handle = { id: nextId++, unref() {} };
pending.set(handle, { callback, delay });
return handle;
},
cancel(handle) {
pending.delete(handle);
},
count() {
return pending.size;
},
delays() {
return Array.from(pending.values(), entry => entry.delay);
},
async fireNext() {
const entry = pending.entries().next().value;
assert.ok(entry);
const [handle, timer] = entry;
pending.delete(handle);
await timer.callback();
}
};
}
function createRendererFrame(frameToken, url = `file:///renderer/index.html?startupDocument=${frameToken}`) {
return {
detached: false,
frameToken,
processId: 1,
url,
isDestroyed() {
return false;
}
};
}
function createRevealWindow({ minimized = true, visible = false } = {}) {
const events = [];
return {
events,
webContents: {
isDestroyed() {
return false;
}
},
isDestroyed() {
return false;
},
isMinimized() {
return minimized;
},
isVisible() {
return visible;
},
restore() {
events.push('restore');
minimized = false;
},
show() {
events.push('show');
visible = true;
},
focus() {
events.push('focus');
}
};
}
test('configureStartupRenderer leaves hardware acceleration enabled for a local Windows session', () => {
let calls = 0;
configureStartupRenderer({ disableHardwareAcceleration() { calls++; } }, { SESSIONNAME: 'Console' }, 'win32');
assert.equal(calls, 0);
});
test('configureStartupRenderer disables hardware acceleration for a Windows Remote Desktop session', () => {
let calls = 0;
configureStartupRenderer({ disableHardwareAcceleration() { calls++; } }, { SESSIONNAME: 'RDP-Tcp#12' }, 'win32');
assert.equal(calls, 1);
});
test('resolveStartupLanguage accepts only the supported persisted language', () => {
assert.equal(resolveStartupLanguage({ globalSettings: { language: 'de' } }), 'de');
assert.equal(resolveStartupLanguage({ globalSettings: { language: 'en' } }), 'en');
assert.equal(resolveStartupLanguage({ globalSettings: { language: 'fr' } }), 'en');
assert.equal(resolveStartupLanguage(null), 'en');
});
test('createStartupWindow forces the main window to start hidden', () => {
const startup = createStartupWindow(TestBrowserWindow, { width: 1100, show: true });
assert.equal(startup.window.options.width, 1100);
assert.equal(startup.window.options.show, false);
});
test('main window uses the branded application icon', () => {
const projectRoot = path.join(__dirname, '..');
const mainSource = fs.readFileSync(path.join(projectRoot, 'main.js'), 'utf8');
const createWindowStart = mainSource.indexOf('function createWindow()');
const createWindowEnd = mainSource.indexOf('\nfunction createTray()', createWindowStart);
const createWindowSource = mainSource.slice(createWindowStart, createWindowEnd);
assert.equal(fs.existsSync(path.join(projectRoot, 'assets', 'app_icon.ico')), true);
assert.match(createWindowSource, /icon:\s*path\.join\(__dirname, ['"]assets['"], ['"]app_icon\.ico['"]\)/u);
});
test('ready-to-show cannot reveal the main window before renderer Ready', async () => {
const startup = createStartupWindow(TestBrowserWindow, {});
startup.window.loadError = null;
const loading = startup.load('renderer/index.html', () => {});
assert.deepEqual(startup.window.startupEvents, [
'load:renderer/index.html'
]);
startup.window.emit('ready-to-show');
await loading;
assert.equal(startup.window.showCalls, 0);
});
test('all production external reveal paths wait for an authorized startup surface', () => {
const paths = [
['second-instance', bindings => {
const app = new EventEmitter();
bindings.bindSecondInstance(app);
app.emit('second-instance');
}],
['tray click', bindings => {
const tray = new EventEmitter();
bindings.bindTrayClick(tray);
tray.emit('click');
}],
['tray menu', bindings => {
bindings.createTrayMenuItem('Open').click();
}],
['drop target files', bindings => {
const ipcMain = new EventEmitter();
bindings.bindDropTargetFiles(ipcMain);
ipcMain.emit('drop-target:files', {}, ['queued.mkv']);
}]
];
for (const [name, invoke] of paths) {
const window = createRevealWindow();
const revealGate = createStartupRevealGate(window);
const droppedFiles = [];
const bindings = createStartupExternalRevealBindings({
getWindow: () => window,
getRevealGate: () => revealGate,
sendDroppedFiles: paths => droppedFiles.push(paths)
});
invoke(bindings);
assert.deepEqual(window.events, [], name);
assert.deepEqual(droppedFiles, [], name);
revealGate.reveal();
assert.deepEqual(window.events, ['restore', 'show', 'focus'], name);
assert.deepEqual(droppedFiles, [], name);
bindings.rendererReady(window);
assert.deepEqual(droppedFiles, name === 'drop target files' ? [['queued.mkv']] : [], name);
}
});
test('drop payloads wait through recovery and a safe failure reveal until renderer Ready', () => {
const window = createRevealWindow({ minimized: false, visible: true });
const droppedFiles = [];
let bindings;
const revealGate = createStartupRevealGate(window, {
onBlock() {
bindings.rendererBlocked(window);
}
});
bindings = createStartupExternalRevealBindings({
getWindow: () => window,
getRevealGate: () => revealGate,
sendDroppedFiles: paths => droppedFiles.push(paths)
});
const ipcMain = new EventEmitter();
bindings.bindDropTargetFiles(ipcMain);
bindings.rendererReady(window);
ipcMain.emit('drop-target:files', {}, ['ready.mkv']);
revealGate.navigate(() => {});
ipcMain.emit('drop-target:files', {}, ['recovering.mkv']);
revealGate.reveal();
assert.deepEqual(droppedFiles, [['ready.mkv']]);
bindings.rendererReady(window);
assert.deepEqual(droppedFiles, [['ready.mkv'], ['recovering.mkv']]);
});
test('multiple pending drop payloads flush once in order and ready drops stay immediate', () => {
const window = createRevealWindow();
const revealGate = createStartupRevealGate(window);
const droppedFiles = [];
const bindings = createStartupExternalRevealBindings({
getWindow: () => window,
getRevealGate: () => revealGate,
sendDroppedFiles: paths => droppedFiles.push(paths)
});
const ipcMain = new EventEmitter();
bindings.bindDropTargetFiles(ipcMain);
ipcMain.emit('drop-target:files', {}, ['first.mkv']);
ipcMain.emit('drop-target:files', {}, ['second.mkv']);
ipcMain.emit('drop-target:files', {}, ['third.mkv']);
assert.deepEqual(droppedFiles, []);
revealGate.reveal();
bindings.rendererReady(window);
bindings.rendererReady(window);
assert.deepEqual(droppedFiles, [
['first.mkv'],
['second.mkv'],
['third.mkv']
]);
ipcMain.emit('drop-target:files', {}, ['fourth.mkv']);
assert.deepEqual(droppedFiles, [
['first.mkv'],
['second.mkv'],
['third.mkv'],
['fourth.mkv']
]);
});
test('pending drop payloads stay bounded while retaining delivery order', () => {
const window = createRevealWindow();
const revealGate = createStartupRevealGate(window);
const droppedFiles = [];
const bindings = createStartupExternalRevealBindings({
getWindow: () => window,
getRevealGate: () => revealGate,
sendDroppedFiles: paths => droppedFiles.push(paths),
maxPendingDropPayloads: 2
});
const ipcMain = new EventEmitter();
bindings.bindDropTargetFiles(ipcMain);
ipcMain.emit('drop-target:files', {}, ['first.mkv']);
ipcMain.emit('drop-target:files', {}, ['second.mkv']);
ipcMain.emit('drop-target:files', {}, ['third.mkv']);
bindings.rendererReady(window);
assert.deepEqual(droppedFiles, [
['second.mkv'],
['third.mkv']
]);
});
test('pending drop payloads are cleared for destroyed and replaced windows', () => {
const firstWindow = createRevealWindow();
let activeWindow = firstWindow;
const droppedFiles = [];
const bindings = createStartupExternalRevealBindings({
getWindow: () => activeWindow,
getRevealGate: () => ({ request() {} }),
sendDroppedFiles: paths => droppedFiles.push(paths)
});
const ipcMain = new EventEmitter();
bindings.bindDropTargetFiles(ipcMain);
ipcMain.emit('drop-target:files', {}, ['replaced.mkv']);
activeWindow = createRevealWindow();
bindings.rendererReady(firstWindow);
bindings.rendererReady(activeWindow);
assert.deepEqual(droppedFiles, []);
ipcMain.emit('drop-target:files', {}, ['ready.mkv']);
bindings.rendererBlocked(activeWindow);
ipcMain.emit('drop-target:files', {}, ['destroyed.mkv']);
activeWindow.isDestroyed = () => true;
bindings.rendererReady(activeWindow);
activeWindow = createRevealWindow();
bindings.rendererReady(activeWindow);
assert.deepEqual(droppedFiles, [['ready.mkv']]);
});
test('renderer Ready and the safe failure surface can authorize the gated window', async () => {
const readyWindow = createRevealWindow({ minimized: false });
const readyGate = createStartupRevealGate(readyWindow);
const readyCoordinator = createStartupRecoveryCoordinator({
load() {},
reload() {},
reveal: readyGate.reveal,
close() {}
});
const generation = readyCoordinator.rendererLoadStarted();
readyCoordinator.rendererLoaded(generation);
readyCoordinator.rendererReady(generation);
assert.deepEqual(readyWindow.events, ['show']);
const failureWindow = createRevealWindow({ minimized: false });
const failureGate = createStartupRevealGate(failureWindow);
let failureSurfaceLoads = 0;
const failureCoordinator = createStartupRecoveryCoordinator({
async load() {
throw new Error('navigation failed');
},
reload() {},
reveal: failureGate.reveal,
async showFailure() {
failureSurfaceLoads++;
},
close() {}
});
await failureCoordinator.loadInitial();
assert.equal(failureSurfaceLoads, 1);
assert.deepEqual(failureWindow.events, ['show']);
});
test('failed recovery navigation leaves the safe failure surface directly closable', async () => {
const window = createRevealWindow({ minimized: false });
let closeHandshakeReady = true;
const readinessDuringNavigation = [];
const revealGate = createStartupRevealGate(window, {
onBlock() {
closeHandshakeReady = false;
}
});
const coordinator = createStartupRecoveryCoordinator({
load() {},
reload() {
return revealGate.navigate(() => {
readinessDuringNavigation.push(closeHandshakeReady);
throw new Error('recovery load rejected before navigation');
});
},
reveal: revealGate.reveal,
showFailure() {
return revealGate.navigate(() => {
readinessDuringNavigation.push(closeHandshakeReady);
});
},
close() {}
});
await coordinator.rendererCrashed({ reason: 'crashed' });
let closePreparationCalls = 0;
let preventDefaultCalls = 0;
const closeHandler = createStartupCloseHandler({
window,
shouldPrepareClose: () => closeHandshakeReady,
requestClosePreparation() {
closePreparationCalls++;
}
});
const intercepted = closeHandler({
preventDefault() {
preventDefaultCalls++;
}
});
assert.deepEqual(readinessDuringNavigation, [false, false]);
assert.deepEqual(window.events, ['show']);
assert.equal(intercepted, false);
assert.equal(preventDefaultCalls, 0);
assert.equal(closePreparationCalls, 0);
});
test('startup load forwards a rejected navigation to the error handler', async () => {
const startup = createStartupWindow(TestBrowserWindow, {});
let handledError;
await startup.load('renderer/index.html', (err) => {
handledError = err;
});
assert.equal(handledError, startup.window.loadError);
});
test('startup load forwards navigation options before the renderer becomes visible', async () => {
const startup = createStartupWindow(TestBrowserWindow, {});
const options = { query: { language: 'de' } };
await startup.load('renderer/index.html', () => {}, options);
assert.deepEqual(startup.window.loadOptions, options);
});
test('startup navigation gives every main document a distinct generation URL', async () => {
const calls = [];
const window = {
loadFile(target, options) {
calls.push([target, options]);
return Promise.resolve('loaded');
}
};
const loadDocument = createStartupNavigationLoader(window, 'renderer/index.html', {
hash: 'uploads',
query: { language: 'de' }
});
await loadDocument();
await loadDocument();
assert.deepEqual(calls, [
['renderer/index.html', {
hash: 'uploads',
query: { language: 'de', startupDocument: '1' }
}],
['renderer/index.html', {
hash: 'uploads',
query: { language: 'de', startupDocument: '2' }
}]
]);
});
test('startup recovery retries the initial load exactly once before succeeding', async () => {
const attempts = [];
const options = { query: { language: 'de' } };
const coordinator = createStartupRecoveryCoordinator({
async load(...args) {
attempts.push(args);
if (attempts.length === 1) throw new Error('first load failed');
return 'loaded';
},
reload() {},
reveal() {},
close() {}
});
const result = await coordinator.loadInitial('renderer/index.html', options);
assert.equal(result, 'loaded');
assert.deepEqual(attempts, [
['renderer/index.html', options],
['renderer/index.html', options]
]);
});
test('a crash during initial load joins the serialized initial retry without a third navigation', async () => {
let rejectFirstLoad;
const firstLoad = new Promise((_, reject) => {
rejectFirstLoad = reject;
});
let activeNavigations = 0;
let maxConcurrentNavigations = 0;
let loadCalls = 0;
let reloadCalls = 0;
const coordinator = createStartupRecoveryCoordinator({
async load() {
loadCalls++;
activeNavigations++;
maxConcurrentNavigations = Math.max(maxConcurrentNavigations, activeNavigations);
try {
if (loadCalls === 1) return await firstLoad;
return 'loaded';
} finally {
activeNavigations--;
}
},
async reload() {
reloadCalls++;
activeNavigations++;
maxConcurrentNavigations = Math.max(maxConcurrentNavigations, activeNavigations);
activeNavigations--;
return 'reloaded';
},
reveal() {},
close() {}
});
const initialLoading = coordinator.loadInitial('renderer/index.html');
const crashRecovery = coordinator.rendererCrashed({ reason: 'crashed', exitCode: 17 });
rejectFirstLoad(new Error('first navigation crashed'));
await Promise.all([initialLoading, crashRecovery]);
assert.equal(loadCalls, 2);
assert.equal(reloadCalls, 0);
assert.equal(maxConcurrentNavigations, 1);
});
test('the initial navigation retry consumes the single recovery navigation budget', async () => {
const scheduler = createManualScheduler();
const failures = [];
let loadCalls = 0;
let reloadCalls = 0;
const coordinator = createStartupRecoveryCoordinator({
async load() {
loadCalls++;
if (loadCalls === 1) throw new Error('first navigation failed');
},
async reload() {
reloadCalls++;
},
reveal() {},
async showFailure(failure) {
failures.push(failure);
},
close() {},
readyTimeoutMs: 25,
scheduleReadyDeadline: scheduler.schedule,
cancelReadyDeadline: scheduler.cancel
});
await coordinator.loadInitial('renderer/index.html');
const generation = coordinator.rendererLoadStarted();
coordinator.rendererLoaded(generation);
await scheduler.fireNext();
assert.equal(loadCalls, 2);
assert.equal(reloadCalls, 0);
assert.deepEqual(failures, [{
phase: 'renderer-ready-timeout',
attempt: 2,
details: { timeoutMs: 25 }
}]);
});
test('startup recovery reveals a safe failure surface after both initial loads fail', async () => {
const loadErrors = [new Error('first load failed'), new Error('second load failed')];
const safeFailures = [];
let loadCalls = 0;
let revealCalls = 0;
let closeCalls = 0;
const coordinator = createStartupRecoveryCoordinator({
async load() {
throw loadErrors[loadCalls++];
},
reload() {},
reveal() {
revealCalls++;
},
async showFailure(failure) {
safeFailures.push(failure);
},
close() {
closeCalls++;
}
});
await coordinator.loadInitial('renderer/index.html');
assert.equal(loadCalls, 2);
assert.deepEqual(safeFailures, [{
phase: 'initial-load',
attempt: 2,
error: loadErrors[1]
}]);
assert.equal(revealCalls, 1);
assert.equal(closeCalls, 0);
});
test('startup recovery closes when the safe failure surface cannot be shown', async () => {
const loadError = new Error('renderer remains unavailable');
const surfaceError = new Error('failure surface failed');
const closeFailures = [];
let revealCalls = 0;
const coordinator = createStartupRecoveryCoordinator({
async load() {
throw loadError;
},
reload() {},
reveal() {
revealCalls++;
},
async showFailure() {
throw surfaceError;
},
async close(failure) {
closeFailures.push(failure);
}
});
await coordinator.loadInitial('renderer/index.html');
assert.equal(revealCalls, 0);
assert.deepEqual(closeFailures, [{
phase: 'initial-load',
attempt: 2,
error: loadError,
surfaceError
}]);
});
test('startup recovery uses a controlled close when no failure surface is configured', async () => {
const loadError = new Error('renderer unavailable');
const closeFailures = [];
let revealCalls = 0;
const coordinator = createStartupRecoveryCoordinator({
async load() {
throw loadError;
},
reload() {},
reveal() {
revealCalls++;
},
async close(failure) {
closeFailures.push(failure);
}
});
await coordinator.loadInitial('renderer/index.html');
assert.equal(revealCalls, 0);
assert.deepEqual(closeFailures, [{
phase: 'initial-load',
attempt: 2,
error: loadError
}]);
});
test('renderer crash recovery reloads once and cannot enter an infinite reload loop', async () => {
const crashes = [
{ reason: 'crashed', exitCode: 11 },
{ reason: 'crashed', exitCode: 12 },
{ reason: 'crashed', exitCode: 13 }
];
const safeFailures = [];
let reloadCalls = 0;
let revealCalls = 0;
const coordinator = createStartupRecoveryCoordinator({
load() {},
async reload() {
reloadCalls++;
},
reveal() {
revealCalls++;
},
async showFailure(failure) {
safeFailures.push(failure);
},
close() {}
});
await coordinator.rendererCrashed(crashes[0]);
await coordinator.rendererCrashed(crashes[1]);
await coordinator.rendererCrashed(crashes[2]);
assert.equal(reloadCalls, 1);
assert.deepEqual(safeFailures, [{
phase: 'renderer-crash',
attempt: 2,
details: crashes[1]
}]);
assert.equal(revealCalls, 1);
});
test('renderer initialization failures share the bounded recovery path', async () => {
const failures = [];
let reloadCalls = 0;
const coordinator = createStartupRecoveryCoordinator({
load() {},
async reload() {
reloadCalls++;
},
reveal() {},
async showFailure(failure) {
failures.push(failure);
},
close() {}
});
await coordinator.rendererInitializationFailed({ message: 'first failure' });
await coordinator.rendererInitializationFailed({ message: 'second failure' });
assert.equal(reloadCalls, 1);
assert.deepEqual(failures, [{
phase: 'renderer-initialization',
attempt: 2,
details: { message: 'second failure' }
}]);
});
test('production startup handlers route renderer initialization failure through bounded recovery', async () => {
const failures = [];
let reloadCalls = 0;
let revealCalls = 0;
const reportedFailures = [];
const ipcMain = new EventEmitter();
const webContents = new EventEmitter();
const firstFrame = createRendererFrame('initialization-1');
const secondFrame = createRendererFrame('initialization-2');
const coordinator = createStartupRecoveryCoordinator({
load() {},
async reload() {
reloadCalls++;
webContents.mainFrame = secondFrame;
webContents.emit('did-start-navigation', {
isMainFrame: true,
isSameDocument: false,
url: secondFrame.url,
frame: secondFrame
});
webContents.emit('did-finish-load');
},
reveal() {
revealCalls++;
},
async showFailure(failure) {
failures.push(failure);
},
close() {}
});
const handlers = createStartupRendererHandlers({
window: { isDestroyed: () => false, webContents },
ipcMain,
coordinator,
onReady() {},
onInitializationFailed(details) {
reportedFailures.push(details);
}
});
const firstDetails = { message: 'first top-level initialization failed' };
const secondDetails = { message: 'second top-level initialization failed' };
webContents.mainFrame = firstFrame;
webContents.emit('did-start-navigation', {
isMainFrame: true,
isSameDocument: false,
url: firstFrame.url,
frame: firstFrame
});
ipcMain.emit('app:renderer-initialization-failed', {
sender: webContents,
senderFrame: firstFrame
}, firstDetails);
await new Promise(resolve => setImmediate(resolve));
ipcMain.emit('app:renderer-initialization-failed', {
sender: webContents,
senderFrame: secondFrame
}, secondDetails);
await new Promise(resolve => setImmediate(resolve));
assert.equal(reloadCalls, 1);
assert.equal(revealCalls, 1);
assert.deepEqual(reportedFailures, [firstDetails, secondDetails]);
assert.deepEqual(failures, [{
phase: 'renderer-initialization',
attempt: 2,
details: secondDetails
}]);
handlers.dispose();
});
test('production startup handlers enforce the Ready deadline after every main document load', async () => {
const scheduler = createManualScheduler();
const webContents = new EventEmitter();
const firstFrame = createRendererFrame('timeout-1');
const secondFrame = createRendererFrame('timeout-2');
const failures = [];
let reloadCalls = 0;
const coordinator = createStartupRecoveryCoordinator({
load() {},
async reload() {
reloadCalls++;
},
reveal() {},
async showFailure(failure) {
failures.push(failure);
},
close() {},
readyTimeoutMs: 25,
scheduleReadyDeadline: scheduler.schedule,
cancelReadyDeadline: scheduler.cancel
});
const handlers = createStartupRendererHandlers({
window: { isDestroyed: () => false, webContents },
coordinator,
onReady() {},
onInitializationFailed() {}
});
webContents.mainFrame = firstFrame;
webContents.emit('did-start-navigation', {
isMainFrame: true,
isSameDocument: false,
url: firstFrame.url,
frame: firstFrame
});
webContents.emit('did-finish-load');
assert.deepEqual(scheduler.delays(), [25]);
await scheduler.fireNext();
assert.equal(reloadCalls, 1);
webContents.mainFrame = secondFrame;
webContents.emit('did-start-navigation', {
isMainFrame: true,
isSameDocument: false,
url: secondFrame.url,
frame: secondFrame
});
webContents.emit('did-finish-load');
await scheduler.fireNext();
assert.equal(reloadCalls, 1);
assert.deepEqual(failures, [{
phase: 'renderer-ready-timeout',
attempt: 2,
details: { timeoutMs: 25 }
}]);
handlers.dispose();
});
test('late Ready from an old renderer generation cannot clear the current deadline or recovery budget', async () => {
const scheduler = createManualScheduler();
const failures = [];
let reloadCalls = 0;
const coordinator = createStartupRecoveryCoordinator({
load() {},
async reload() {
reloadCalls++;
},
reveal() {},
async showFailure(failure) {
failures.push(failure);
},
close() {},
readyTimeoutMs: 25,
scheduleReadyDeadline: scheduler.schedule,
cancelReadyDeadline: scheduler.cancel
});
const oldGeneration = coordinator.rendererLoadStarted();
coordinator.rendererLoaded(oldGeneration);
await scheduler.fireNext();
const currentGeneration = coordinator.rendererLoadStarted();
coordinator.rendererLoaded(currentGeneration);
const accepted = coordinator.rendererReady(oldGeneration);
assert.equal(accepted, false);
assert.equal(scheduler.count(), 1);
await scheduler.fireNext();
assert.equal(reloadCalls, 1);
assert.deepEqual(failures, [{
phase: 'renderer-ready-timeout',
attempt: 2,
details: { timeoutMs: 25 }
}]);
});
test('Ready without a renderer generation cannot clear the active deadline', () => {
const scheduler = createManualScheduler();
let revealCalls = 0;
const coordinator = createStartupRecoveryCoordinator({
load() {},
reload() {},
reveal() {
revealCalls++;
},
close() {},
readyTimeoutMs: 25,
scheduleReadyDeadline: scheduler.schedule,
cancelReadyDeadline: scheduler.cancel
});
const generation = coordinator.rendererLoadStarted();
coordinator.rendererLoaded(generation);
const accepted = coordinator.rendererReady();
assert.equal(accepted, false);
assert.equal(revealCalls, 0);
assert.equal(scheduler.count(), 1);
});
test('production event wiring rejects an old document Ready and exposes the failsafe', async () => {
const scheduler = createManualScheduler();
const ipcMain = new EventEmitter();
const webContents = new EventEmitter();
const oldFrame = createRendererFrame('main-frame', 'file:///renderer/index.html?startupDocument=1');
const currentFrame = createRendererFrame('main-frame', 'file:///renderer/index.html?startupDocument=2');
const window = {
webContents,
isDestroyed() {
return false;
}
};
const failures = [];
let reloadCalls = 0;
let revealCalls = 0;
let readyCalls = 0;
const coordinator = createStartupRecoveryCoordinator({
load() {},
async reload() {
reloadCalls++;
webContents.mainFrame = currentFrame;
webContents.emit('did-start-navigation', {
isMainFrame: true,
isSameDocument: false,
url: currentFrame.url,
frame: currentFrame
});
webContents.emit('did-finish-load');
},
reveal() {
revealCalls++;
},
async showFailure(failure) {
failures.push(failure);
},
close() {},
readyTimeoutMs: 25,
scheduleReadyDeadline: scheduler.schedule,
cancelReadyDeadline: scheduler.cancel
});
const handlers = createStartupRendererHandlers({
window,
ipcMain,
coordinator,
onReady() {
readyCalls++;
},
onInitializationFailed() {}
});
webContents.mainFrame = oldFrame;
webContents.emit('did-start-navigation', {
isMainFrame: true,
isSameDocument: false,
url: oldFrame.url,
frame: oldFrame
});
webContents.emit('did-finish-load');
assert.equal(scheduler.count(), 1);
await scheduler.fireNext();
assert.equal(reloadCalls, 1);
assert.equal(scheduler.count(), 1);
ipcMain.emit('app:close-handshake-ready', {
sender: webContents,
senderFrame: oldFrame
});
assert.equal(readyCalls, 0);
assert.equal(scheduler.count(), 1);
await scheduler.fireNext();
assert.equal(reloadCalls, 1);
assert.equal(revealCalls, 1);
assert.deepEqual(failures, [{
phase: 'renderer-ready-timeout',
attempt: 2,
details: { timeoutMs: 25 }
}]);
handlers.dispose();
});
test('production recovery wiring flushes pending drops only for the current document Ready', async () => {
const ipcMain = new EventEmitter();
const webContents = new EventEmitter();
const initialFrame = createRendererFrame('drop-initial');
const recoveryFrame = createRendererFrame('drop-recovery');
const window = createRevealWindow({ minimized: false, visible: true });
window.webContents = webContents;
const droppedFiles = [];
let bindings;
const revealGate = createStartupRevealGate(window, {
onBlock() {
bindings.rendererBlocked(window);
}
});
bindings = createStartupExternalRevealBindings({
getWindow: () => window,
getRevealGate: () => revealGate,
sendDroppedFiles: paths => droppedFiles.push(paths)
});
bindings.bindDropTargetFiles(ipcMain);
const coordinator = createStartupRecoveryCoordinator({
load() {},
async reload() {
webContents.mainFrame = recoveryFrame;
webContents.emit('did-start-navigation', {
isMainFrame: true,
isSameDocument: false,
url: recoveryFrame.url,
frame: recoveryFrame
});
webContents.emit('did-finish-load');
},
reveal: revealGate.reveal,
close() {}
});
const handlers = createStartupRendererHandlers({
window,
ipcMain,
coordinator,
onDocumentLoadStarted: revealGate.block,
onReady() {
bindings.rendererReady(window);
},
onInitializationFailed() {}
});
webContents.mainFrame = initialFrame;
webContents.emit('did-start-navigation', {
isMainFrame: true,
isSameDocument: false,
url: initialFrame.url,
frame: initialFrame
});
webContents.emit('did-finish-load');
ipcMain.emit('app:close-handshake-ready', {
sender: webContents,
senderFrame: initialFrame
});
ipcMain.emit('drop-target:files', {}, ['ready.mkv']);
webContents.emit('render-process-gone', {}, { reason: 'crashed' });
await new Promise(resolve => setImmediate(resolve));
ipcMain.emit('drop-target:files', {}, ['first-recovery.mkv']);
ipcMain.emit('drop-target:files', {}, ['second-recovery.mkv']);
ipcMain.emit('app:close-handshake-ready', {
sender: webContents,
senderFrame: initialFrame
});
assert.deepEqual(droppedFiles, [['ready.mkv']]);
ipcMain.emit('app:close-handshake-ready', {
sender: webContents,
senderFrame: recoveryFrame
});
ipcMain.emit('app:close-handshake-ready', {
sender: webContents,
senderFrame: recoveryFrame
});
assert.deepEqual(droppedFiles, [
['ready.mkv'],
['first-recovery.mkv'],
['second-recovery.mkv']
]);
handlers.dispose();
});
test('production startup handlers cancel the Ready deadline after a valid Ready signal', async () => {
const scheduler = createManualScheduler();
let reloadCalls = 0;
let readyCalls = 0;
const frame = createRendererFrame('ready');
const webContents = { mainFrame: frame };
const coordinator = createStartupRecoveryCoordinator({
load() {},
async reload() {
reloadCalls++;
},
reveal() {},
close() {},
readyTimeoutMs: 25,
scheduleReadyDeadline: scheduler.schedule,
cancelReadyDeadline: scheduler.cancel
});
const handlers = createStartupRendererHandlers({
window: { isDestroyed: () => false, webContents },
coordinator,
onReady() {
readyCalls++;
},
onInitializationFailed() {}
});
handlers.documentLoadStarted();
handlers.documentLoaded();
const ready = handlers.rendererReady({ sender: webContents, senderFrame: frame });
assert.equal(ready, true);
assert.equal(readyCalls, 1);
assert.equal(scheduler.count(), 0);
assert.equal(reloadCalls, 0);
});
test('Ready before did-finish-load is rejected and cannot suppress the current deadline', () => {
const scheduler = createManualScheduler();
const frame = createRendererFrame('not-finished');
const webContents = { mainFrame: frame };
const coordinator = createStartupRecoveryCoordinator({
load() {},
reload() {},
reveal() {},
close() {},
readyTimeoutMs: 25,
scheduleReadyDeadline: scheduler.schedule,
cancelReadyDeadline: scheduler.cancel
});
const handlers = createStartupRendererHandlers({
window: { isDestroyed: () => false, webContents },
coordinator,
onReady() {},
onInitializationFailed() {}
});
handlers.documentLoadStarted();
const ready = handlers.rendererReady({ sender: webContents, senderFrame: frame });
handlers.documentLoaded();
assert.equal(ready, false);
assert.equal(scheduler.count(), 1);
});
test('disposing startup handlers cancels a pending Ready deadline', () => {
const scheduler = createManualScheduler();
const coordinator = createStartupRecoveryCoordinator({
load() {},
reload() {},
reveal() {},
close() {},
readyTimeoutMs: 25,
scheduleReadyDeadline: scheduler.schedule,
cancelReadyDeadline: scheduler.cancel
});
const handlers = createStartupRendererHandlers({
window: { isDestroyed: () => false, webContents: {} },
coordinator,
onReady() {},
onInitializationFailed() {}
});
handlers.documentLoadStarted();
handlers.documentLoaded();
handlers.dispose();
assert.equal(scheduler.count(), 0);
});
test('a successful renderer ready event reveals content and resets crash recovery', async () => {
const crashes = [
{ reason: 'crashed', exitCode: 21 },
{ reason: 'crashed', exitCode: 22 }
];
let reloadCalls = 0;
let revealCalls = 0;
let safeFailureCalls = 0;
const coordinator = createStartupRecoveryCoordinator({
load() {},
async reload() {
reloadCalls++;
},
reveal() {
revealCalls++;
},
async showFailure() {
safeFailureCalls++;
},
close() {}
});
await coordinator.rendererCrashed(crashes[0]);
const generation = coordinator.rendererLoadStarted();
coordinator.rendererLoaded(generation);
coordinator.rendererReady(generation);
await coordinator.rendererCrashed(crashes[1]);
assert.equal(reloadCalls, 2);
assert.equal(revealCalls, 1);
assert.equal(safeFailureCalls, 0);
});
test('a failed crash reload enters the safe failure state without another reload', async () => {
const crash = { reason: 'launch-failed', exitCode: 31 };
const reloadError = new Error('reload failed');
const safeFailures = [];
let reloadCalls = 0;
let revealCalls = 0;
const coordinator = createStartupRecoveryCoordinator({
load() {},
async reload() {
reloadCalls++;
throw reloadError;
},
reveal() {
revealCalls++;
},
async showFailure(failure) {
safeFailures.push(failure);
},
close() {}
});
await coordinator.rendererCrashed(crash);
await coordinator.rendererCrashed({ reason: 'crashed', exitCode: 32 });
assert.equal(reloadCalls, 1);
assert.deepEqual(safeFailures, [{
phase: 'renderer-reload',
attempt: 1,
details: crash,
error: reloadError
}]);
assert.equal(revealCalls, 1);
});
test('terminal recovery ignores late ready, load, and crash events', async () => {
let loadCalls = 0;
let reloadCalls = 0;
let revealCalls = 0;
let safeFailureCalls = 0;
const coordinator = createStartupRecoveryCoordinator({
async load() {
loadCalls++;
},
async reload() {
reloadCalls++;
},
reveal() {
revealCalls++;
},
async showFailure() {
safeFailureCalls++;
},
close() {}
});
await coordinator.rendererCrashed({ reason: 'crashed', exitCode: 41 });
await coordinator.rendererCrashed({ reason: 'crashed', exitCode: 42 });
const readyResult = coordinator.rendererReady();
await coordinator.loadInitial('renderer/index.html');
await coordinator.rendererCrashed({ reason: 'crashed', exitCode: 43 });
assert.equal(readyResult, false);
assert.equal(loadCalls, 0);
assert.equal(reloadCalls, 1);
assert.equal(revealCalls, 1);
assert.equal(safeFailureCalls, 1);
});