const assert = require('assert') const path = require('path') const http = require('http') const url = require('url') const {app, session, ipcMain, BrowserWindow} = require('electron').remote describe(' tag', function () { this.timeout(20000) var fixtures = path.join(__dirname, 'fixtures') var webview = null let w = null beforeEach(function () { webview = new WebView() }) afterEach(function () { if (document.body.contains(webview)) { document.body.removeChild(webview) } if (w) { w.destroy() w = null } }) it('works without script tag in page', function (done) { w = new BrowserWindow({show: false}) ipcMain.once('pong', function () { done() }) w.loadURL('file://' + fixtures + '/pages/webview-no-script.html') }) it('is disabled when nodeIntegration is disabled', function (done) { w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: false, preload: path.join(fixtures, 'module', 'preload-webview.js') }, }) ipcMain.once('webview', function (event, type) { if (type === 'undefined') { done() } else { done('WebView still exists') } }) w.loadURL('file://' + fixtures + '/pages/webview-no-script.html') }) describe('src attribute', function () { it('specifies the page to load', function (done) { webview.addEventListener('console-message', function (e) { assert.equal(e.message, 'a') done() }) webview.src = 'file://' + fixtures + '/pages/a.html' document.body.appendChild(webview) }) it('navigates to new page when changed', function (done) { var listener = function () { webview.src = 'file://' + fixtures + '/pages/b.html' webview.addEventListener('console-message', function (e) { assert.equal(e.message, 'b') done() }) webview.removeEventListener('did-finish-load', listener) } webview.addEventListener('did-finish-load', listener) webview.src = 'file://' + fixtures + '/pages/a.html' document.body.appendChild(webview) }) }) describe('nodeintegration attribute', function () { it('inserts no node symbols when not set', function (done) { webview.addEventListener('console-message', function (e) { assert.equal(e.message, 'undefined undefined undefined undefined') done() }) webview.src = 'file://' + fixtures + '/pages/c.html' document.body.appendChild(webview) }) it('inserts node symbols when set', function (done) { webview.addEventListener('console-message', function (e) { assert.equal(e.message, 'function object object') done() }) webview.setAttribute('nodeintegration', 'on') webview.src = 'file://' + fixtures + '/pages/d.html' document.body.appendChild(webview) }) it('loads node symbols after POST navigation when set', function (done) { webview.addEventListener('console-message', function (e) { assert.equal(e.message, 'function object object') done() }) webview.setAttribute('nodeintegration', 'on') webview.src = 'file://' + fixtures + '/pages/post.html' document.body.appendChild(webview) }) it('disables node integration on child windows when it is disabled on the webview', function (done) { app.once('browser-window-created', function (event, window) { assert.equal(window.webContents.getWebPreferences().nodeIntegration, false) done() }) webview.setAttribute('allowpopups', 'on') webview.src = url.format({ pathname: `${fixtures}/pages/webview-opener-no-node-integration.html`, protocol: 'file', query: { p: `${fixtures}/pages/window-opener-node.html` }, slashes: true }) document.body.appendChild(webview) }) if (process.platform !== 'win32' || process.execPath.toLowerCase().indexOf('\\out\\d\\') === -1) { it('loads native modules when navigation happens', function (done) { var listener = function () { webview.removeEventListener('did-finish-load', listener) var listener2 = function (e) { assert.equal(e.message, 'function') done() } webview.addEventListener('console-message', listener2) webview.reload() } webview.addEventListener('did-finish-load', listener) webview.setAttribute('nodeintegration', 'on') webview.src = 'file://' + fixtures + '/pages/native-module.html' document.body.appendChild(webview) }) } }) describe('preload attribute', function () { it('loads the script before other scripts in window', function (done) { var listener = function (e) { assert.equal(e.message, 'function object object') webview.removeEventListener('console-message', listener) done() } webview.addEventListener('console-message', listener) webview.setAttribute('preload', fixtures + '/module/preload.js') webview.src = 'file://' + fixtures + '/pages/e.html' document.body.appendChild(webview) }) it('preload script can still use "process" in required modules when nodeintegration is off', function (done) { webview.addEventListener('console-message', function (e) { assert.equal(e.message, 'object undefined object') done() }) webview.setAttribute('preload', fixtures + '/module/preload-node-off.js') webview.src = 'file://' + fixtures + '/api/blank.html' document.body.appendChild(webview) }) it('receives ipc message in preload script', function (done) { var message = 'boom!' var listener = function (e) { assert.equal(e.channel, 'pong') assert.deepEqual(e.args, [message]) webview.removeEventListener('ipc-message', listener) done() } var listener2 = function () { webview.send('ping', message) webview.removeEventListener('did-finish-load', listener2) } webview.addEventListener('ipc-message', listener) webview.addEventListener('did-finish-load', listener2) webview.setAttribute('preload', fixtures + '/module/preload-ipc.js') webview.src = 'file://' + fixtures + '/pages/e.html' document.body.appendChild(webview) }) it('works without script tag in page', function (done) { var listener = function (e) { assert.equal(e.message, 'function object object') webview.removeEventListener('console-message', listener) done() } webview.addEventListener('console-message', listener) webview.setAttribute('preload', fixtures + '/module/preload.js') webview.src = 'file://' + fixtures + '/pages/base-page.html' document.body.appendChild(webview) }) }) describe('httpreferrer attribute', function () { it('sets the referrer url', function (done) { var referrer = 'http://github.com/' var listener = function (e) { assert.equal(e.message, referrer) webview.removeEventListener('console-message', listener) done() } webview.addEventListener('console-message', listener) webview.setAttribute('httpreferrer', referrer) webview.src = 'file://' + fixtures + '/pages/referrer.html' document.body.appendChild(webview) }) }) describe('useragent attribute', function () { it('sets the user agent', function (done) { var referrer = 'Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko' var listener = function (e) { assert.equal(e.message, referrer) webview.removeEventListener('console-message', listener) done() } webview.addEventListener('console-message', listener) webview.setAttribute('useragent', referrer) webview.src = 'file://' + fixtures + '/pages/useragent.html' document.body.appendChild(webview) }) }) describe('disablewebsecurity attribute', function () { it('does not disable web security when not set', function (done) { var jqueryPath = path.join(__dirname, '/static/jquery-2.0.3.min.js') var src = ` ` var encoded = btoa(unescape(encodeURIComponent(src))) var listener = function (e) { assert(/Not allowed to load local resource/.test(e.message)) webview.removeEventListener('console-message', listener) done() } webview.addEventListener('console-message', listener) webview.src = 'data:text/html;base64,' + encoded document.body.appendChild(webview) }) it('disables web security when set', function (done) { var jqueryPath = path.join(__dirname, '/static/jquery-2.0.3.min.js') var src = ` ` var encoded = btoa(unescape(encodeURIComponent(src))) var listener = function (e) { assert.equal(e.message, 'ok') webview.removeEventListener('console-message', listener) done() } webview.addEventListener('console-message', listener) webview.setAttribute('disablewebsecurity', '') webview.src = 'data:text/html;base64,' + encoded document.body.appendChild(webview) }) it('does not break node integration', function (done) { webview.addEventListener('console-message', function (e) { assert.equal(e.message, 'function object object') done() }) webview.setAttribute('nodeintegration', 'on') webview.setAttribute('disablewebsecurity', '') webview.src = 'file://' + fixtures + '/pages/d.html' document.body.appendChild(webview) }) it('does not break preload script', function (done) { var listener = function (e) { assert.equal(e.message, 'function object object') webview.removeEventListener('console-message', listener) done() } webview.addEventListener('console-message', listener) webview.setAttribute('disablewebsecurity', '') webview.setAttribute('preload', fixtures + '/module/preload.js') webview.src = 'file://' + fixtures + '/pages/e.html' document.body.appendChild(webview) }) }) describe('partition attribute', function () { it('inserts no node symbols when not set', function (done) { webview.addEventListener('console-message', function (e) { assert.equal(e.message, 'undefined undefined undefined undefined') done() }) webview.src = 'file://' + fixtures + '/pages/c.html' webview.partition = 'test1' document.body.appendChild(webview) }) it('inserts node symbols when set', function (done) { webview.addEventListener('console-message', function (e) { assert.equal(e.message, 'function object object') done() }) webview.setAttribute('nodeintegration', 'on') webview.src = 'file://' + fixtures + '/pages/d.html' webview.partition = 'test2' document.body.appendChild(webview) }) it('isolates storage for different id', function (done) { var listener = function (e) { assert.equal(e.message, ' 0') webview.removeEventListener('console-message', listener) done() } window.localStorage.setItem('test', 'one') webview.addEventListener('console-message', listener) webview.src = 'file://' + fixtures + '/pages/partition/one.html' webview.partition = 'test3' document.body.appendChild(webview) }) it('uses current session storage when no id is provided', function (done) { var listener = function (e) { assert.equal(e.message, 'one 1') webview.removeEventListener('console-message', listener) done() } window.localStorage.setItem('test', 'one') webview.addEventListener('console-message', listener) webview.src = 'file://' + fixtures + '/pages/partition/one.html' document.body.appendChild(webview) }) }) describe('allowpopups attribute', function () { if (process.env.TRAVIS === 'true' && process.platform === 'darwin') { return } it('can not open new window when not set', function (done) { var listener = function (e) { assert.equal(e.message, 'null') webview.removeEventListener('console-message', listener) done() } webview.addEventListener('console-message', listener) webview.src = 'file://' + fixtures + '/pages/window-open-hide.html' document.body.appendChild(webview) }) it('can open new window when set', function (done) { var listener = function (e) { assert.equal(e.message, 'window') webview.removeEventListener('console-message', listener) done() } webview.addEventListener('console-message', listener) webview.setAttribute('allowpopups', 'on') webview.src = 'file://' + fixtures + '/pages/window-open-hide.html' document.body.appendChild(webview) }) }) describe('new-window event', function () { if (process.env.TRAVIS === 'true' && process.platform === 'darwin') { return } it('emits when window.open is called', function (done) { webview.addEventListener('new-window', function (e) { assert.equal(e.url, 'http://host/') assert.equal(e.frameName, 'host') done() }) webview.src = 'file://' + fixtures + '/pages/window-open.html' document.body.appendChild(webview) }) it('emits when link with target is called', function (done) { webview.addEventListener('new-window', function (e) { assert.equal(e.url, 'http://host/') assert.equal(e.frameName, 'target') done() }) webview.src = 'file://' + fixtures + '/pages/target-name.html' document.body.appendChild(webview) }) }) describe('ipc-message event', function () { it('emits when guest sends a ipc message to browser', function (done) { webview.addEventListener('ipc-message', function (e) { assert.equal(e.channel, 'channel') assert.deepEqual(e.args, ['arg1', 'arg2']) done() }) webview.src = 'file://' + fixtures + '/pages/ipc-message.html' webview.setAttribute('nodeintegration', 'on') document.body.appendChild(webview) }) }) describe('page-title-set event', function () { it('emits when title is set', function (done) { webview.addEventListener('page-title-set', function (e) { assert.equal(e.title, 'test') assert(e.explicitSet) done() }) webview.src = 'file://' + fixtures + '/pages/a.html' document.body.appendChild(webview) }) }) describe('page-favicon-updated event', function () { it('emits when favicon urls are received', function (done) { webview.addEventListener('page-favicon-updated', function (e) { assert.equal(e.favicons.length, 2) var pageUrl = process.platform === 'win32' ? 'file:///C:/favicon.png' : 'file:///favicon.png' assert.equal(e.favicons[0], pageUrl) done() }) webview.src = 'file://' + fixtures + '/pages/a.html' document.body.appendChild(webview) }) }) describe('will-navigate event', function () { it('emits when a url that leads to oustide of the page is clicked', function (done) { webview.addEventListener('will-navigate', function (e) { assert.equal(e.url, 'http://host/') done() }) webview.src = 'file://' + fixtures + '/pages/webview-will-navigate.html' document.body.appendChild(webview) }) }) describe('did-navigate event', function () { var p = path.join(fixtures, 'pages', 'webview-will-navigate.html') p = p.replace(/\\/g, '/') var pageUrl = url.format({ protocol: 'file', slashes: true, pathname: p }) it('emits when a url that leads to outside of the page is clicked', function (done) { webview.addEventListener('did-navigate', function (e) { assert.equal(e.url, pageUrl) done() }) webview.src = pageUrl document.body.appendChild(webview) }) }) describe('did-navigate-in-page event', function () { it('emits when an anchor link is clicked', function (done) { var p = path.join(fixtures, 'pages', 'webview-did-navigate-in-page.html') p = p.replace(/\\/g, '/') var pageUrl = url.format({ protocol: 'file', slashes: true, pathname: p }) webview.addEventListener('did-navigate-in-page', function (e) { assert.equal(e.url, pageUrl + '#test_content') done() }) webview.src = pageUrl document.body.appendChild(webview) }) it('emits when window.history.replaceState is called', function (done) { webview.addEventListener('did-navigate-in-page', function (e) { assert.equal(e.url, 'http://host/') done() }) webview.src = 'file://' + fixtures + '/pages/webview-did-navigate-in-page-with-history.html' document.body.appendChild(webview) }) it('emits when window.location.hash is changed', function (done) { var p = path.join(fixtures, 'pages', 'webview-did-navigate-in-page-with-hash.html') p = p.replace(/\\/g, '/') var pageUrl = url.format({ protocol: 'file', slashes: true, pathname: p }) webview.addEventListener('did-navigate-in-page', function (e) { assert.equal(e.url, pageUrl + '#test') done() }) webview.src = pageUrl document.body.appendChild(webview) }) }) describe('close event', function () { it('should fire when interior page calls window.close', function (done) { webview.addEventListener('close', function () { done() }) webview.src = 'file://' + fixtures + '/pages/close.html' document.body.appendChild(webview) }) }) describe('devtools-opened event', function () { it('should fire when webview.openDevTools() is called', function (done) { var listener = function () { webview.removeEventListener('devtools-opened', listener) webview.closeDevTools() done() } webview.addEventListener('devtools-opened', listener) webview.addEventListener('dom-ready', function () { webview.openDevTools() }) webview.src = 'file://' + fixtures + '/pages/base-page.html' document.body.appendChild(webview) }) }) describe('devtools-closed event', function () { it('should fire when webview.closeDevTools() is called', function (done) { var listener2 = function () { webview.removeEventListener('devtools-closed', listener2) done() } var listener = function () { webview.removeEventListener('devtools-opened', listener) webview.closeDevTools() } webview.addEventListener('devtools-opened', listener) webview.addEventListener('devtools-closed', listener2) webview.addEventListener('dom-ready', function () { webview.openDevTools() }) webview.src = 'file://' + fixtures + '/pages/base-page.html' document.body.appendChild(webview) }) }) describe('devtools-focused event', function () { it('should fire when webview.openDevTools() is called', function (done) { var listener = function () { webview.removeEventListener('devtools-focused', listener) webview.closeDevTools() done() } webview.addEventListener('devtools-focused', listener) webview.addEventListener('dom-ready', function () { webview.openDevTools() }) webview.src = 'file://' + fixtures + '/pages/base-page.html' document.body.appendChild(webview) }) }) describe('.reload()', function () { it('should emit beforeunload handler', function (done) { var listener = function (e) { assert.equal(e.channel, 'onbeforeunload') webview.removeEventListener('ipc-message', listener) done() } var listener2 = function () { webview.reload() webview.removeEventListener('did-finish-load', listener2) } webview.addEventListener('ipc-message', listener) webview.addEventListener('did-finish-load', listener2) webview.setAttribute('nodeintegration', 'on') webview.src = 'file://' + fixtures + '/pages/beforeunload-false.html' document.body.appendChild(webview) }) }) describe('.clearHistory()', function () { it('should clear the navigation history', function (done) { var listener = function (e) { assert.equal(e.channel, 'history') assert.equal(e.args[0], 2) assert(webview.canGoBack()) webview.clearHistory() assert(!webview.canGoBack()) webview.removeEventListener('ipc-message', listener) done() } webview.addEventListener('ipc-message', listener) webview.setAttribute('nodeintegration', 'on') webview.src = 'file://' + fixtures + '/pages/history.html' document.body.appendChild(webview) }) }) describe('basic auth', function () { var auth = require('basic-auth') it('should authenticate with correct credentials', function (done) { var message = 'Authenticated' var server = http.createServer(function (req, res) { var credentials = auth(req) if (credentials.name === 'test' && credentials.pass === 'test') { res.end(message) } else { res.end('failed') } server.close() }) server.listen(0, '127.0.0.1', function () { var port = server.address().port webview.addEventListener('ipc-message', function (e) { assert.equal(e.channel, message) done() }) webview.src = 'file://' + fixtures + '/pages/basic-auth.html?port=' + port webview.setAttribute('nodeintegration', 'on') document.body.appendChild(webview) }) }) }) describe('dom-ready event', function () { it('emits when document is loaded', function (done) { var server = http.createServer(function () {}) server.listen(0, '127.0.0.1', function () { var port = server.address().port webview.addEventListener('dom-ready', function () { done() }) webview.src = 'file://' + fixtures + '/pages/dom-ready.html?port=' + port document.body.appendChild(webview) }) }) it('throws a custom error when an API method is called before the event is emitted', function () { assert.throws(function () { webview.stop() }, 'Cannot call stop because the webContents is unavailable. The WebView must be attached to the DOM and the dom-ready event emitted before this method can be called.') }) }) describe('executeJavaScript', function () { it('should support user gesture', function (done) { if (process.env.TRAVIS !== 'true' || process.platform === 'darwin') return done() var listener = function () { webview.removeEventListener('enter-html-full-screen', listener) done() } var listener2 = function () { var jsScript = "document.querySelector('video').webkitRequestFullscreen()" webview.executeJavaScript(jsScript, true) webview.removeEventListener('did-finish-load', listener2) } webview.addEventListener('enter-html-full-screen', listener) webview.addEventListener('did-finish-load', listener2) webview.src = 'file://' + fixtures + '/pages/fullscreen.html' document.body.appendChild(webview) }) it('can return the result of the executed script', function (done) { if (process.env.TRAVIS === 'true' && process.platform === 'darwin') return done() var listener = function () { var jsScript = "'4'+2" webview.executeJavaScript(jsScript, false, function (result) { assert.equal(result, '42') done() }) webview.removeEventListener('did-finish-load', listener) } webview.addEventListener('did-finish-load', listener) webview.src = 'about:blank' document.body.appendChild(webview) }) }) describe('sendInputEvent', function () { it('can send keyboard event', function (done) { webview.addEventListener('ipc-message', function (e) { assert.equal(e.channel, 'keyup') assert.deepEqual(e.args, [67, true, false]) done() }) webview.addEventListener('dom-ready', function () { webview.sendInputEvent({ type: 'keyup', keyCode: 'c', modifiers: ['shift'] }) }) webview.src = 'file://' + fixtures + '/pages/onkeyup.html' webview.setAttribute('nodeintegration', 'on') document.body.appendChild(webview) }) it('can send mouse event', function (done) { webview.addEventListener('ipc-message', function (e) { assert.equal(e.channel, 'mouseup') assert.deepEqual(e.args, [10, 20, false, true]) done() }) webview.addEventListener('dom-ready', function () { webview.sendInputEvent({ type: 'mouseup', modifiers: ['ctrl'], x: 10, y: 20 }) }) webview.src = 'file://' + fixtures + '/pages/onmouseup.html' webview.setAttribute('nodeintegration', 'on') document.body.appendChild(webview) }) }) describe('media-started-playing media-paused events', function () { it('emits when audio starts and stops playing', function (done) { var audioPlayed = false webview.addEventListener('media-started-playing', function () { audioPlayed = true }) webview.addEventListener('media-paused', function () { assert(audioPlayed) done() }) webview.src = 'file://' + fixtures + '/pages/audio.html' document.body.appendChild(webview) }) }) describe('found-in-page event', function () { it('emits when a request is made', function (done) { var requestId = null var totalMatches = null var activeMatchOrdinal = [] var listener = function (e) { assert.equal(e.result.requestId, requestId) if (e.result.finalUpdate) { assert.equal(e.result.matches, 3) totalMatches = e.result.matches listener2() } else { activeMatchOrdinal.push(e.result.activeMatchOrdinal) if (e.result.activeMatchOrdinal === totalMatches) { assert.deepEqual(activeMatchOrdinal, [1, 2, 3]) webview.stopFindInPage('clearSelection') done() } } } var listener2 = function () { requestId = webview.findInPage('virtual') } webview.addEventListener('found-in-page', listener) webview.addEventListener('did-finish-load', listener2) webview.src = 'file://' + fixtures + '/pages/content.html' document.body.appendChild(webview) }) }) xdescribe('did-change-theme-color event', function () { it('emits when theme color changes', function (done) { webview.addEventListener('did-change-theme-color', function () { done() }) webview.src = 'file://' + fixtures + '/pages/theme-color.html' document.body.appendChild(webview) }) }) describe('permission-request event', function () { function setUpRequestHandler (webview, requested_permission, completed) { var listener = function (webContents, permission, callback) { if (webContents.getId() === webview.getId()) { assert.equal(permission, requested_permission) callback(false) if (completed) completed() } } session.fromPartition(webview.partition).setPermissionRequestHandler(listener) } it('emits when using navigator.getUserMedia api', function (done) { webview.addEventListener('ipc-message', function (e) { assert(e.channel, 'message') assert(e.args, ['PermissionDeniedError']) done() }) webview.src = 'file://' + fixtures + '/pages/permissions/media.html' webview.partition = 'permissionTest' webview.setAttribute('nodeintegration', 'on') setUpRequestHandler(webview, 'media') document.body.appendChild(webview) }) it('emits when using navigator.geolocation api', function (done) { webview.addEventListener('ipc-message', function (e) { assert(e.channel, 'message') assert(e.args, ['ERROR(1): User denied Geolocation']) done() }) webview.src = 'file://' + fixtures + '/pages/permissions/geolocation.html' webview.partition = 'permissionTest' webview.setAttribute('nodeintegration', 'on') setUpRequestHandler(webview, 'geolocation') document.body.appendChild(webview) }) it('emits when using navigator.requestMIDIAccess api', function (done) { webview.addEventListener('ipc-message', function (e) { assert(e.channel, 'message') assert(e.args, ['SecurityError']) done() }) webview.src = 'file://' + fixtures + '/pages/permissions/midi.html' webview.partition = 'permissionTest' webview.setAttribute('nodeintegration', 'on') setUpRequestHandler(webview, 'midiSysex') document.body.appendChild(webview) }) it('emits when accessing external protocol', function (done) { webview.src = 'magnet:test' webview.partition = 'permissionTest' setUpRequestHandler(webview, 'openExternal', done) document.body.appendChild(webview) }) }) describe('.getWebContents', function () { it('can return the webcontents associated', function (done) { webview.addEventListener('did-finish-load', function () { const webviewContents = webview.getWebContents() assert(webviewContents) assert.equal(webviewContents.getURL(), 'about:blank') done() }) webview.src = 'about:blank' document.body.appendChild(webview) }) }) describe('did-get-response-details event', function () { it('emits for the page and its resources', function (done) { // expected {fileName: resourceType} pairs var expectedResources = { 'did-get-response-details.html': 'mainFrame', 'logo.png': 'image' } var responses = 0; webview.addEventListener('did-get-response-details', function (event) { responses++ var fileName = event.newURL.slice(event.newURL.lastIndexOf('/') + 1) var expectedType = expectedResources[fileName] assert(!!expectedType, `Unexpected response details for ${event.newURL}`) assert(typeof event.status === 'boolean', 'status should be boolean') assert.equal(event.httpResponseCode, 200) assert.equal(event.requestMethod, 'GET') assert(typeof event.referrer === 'string', 'referrer should be string') assert(!!event.headers, 'headers should be present') assert(typeof event.headers === 'object', 'headers should be object') assert.equal(event.resourceType, expectedType, 'Incorrect resourceType') if (responses === Object.keys(expectedResources).length) { done() } }) webview.src = 'file://' + path.join(fixtures, 'pages', 'did-get-response-details.html') document.body.appendChild(webview) }) }) it('inherits the zoomFactor of the parent window', function (done) { w = new BrowserWindow({ show: false, webPreferences: { zoomFactor: 1.2 } }) ipcMain.once('pong', function (event, zoomFactor, zoomLevel) { assert.equal(zoomFactor, 1.2) assert.equal(zoomLevel, 1) done() }) w.loadURL('file://' + fixtures + '/pages/webview-zoom-factor.html') }) it('inherits the parent window visibility state and receives visibilitychange events', function (done) { w = new BrowserWindow({ show: false }) ipcMain.once('pong', function (event, visibilityState, hidden) { assert.equal(visibilityState, 'hidden') assert.equal(hidden, true) w.webContents.send('ELECTRON_RENDERER_WINDOW_VISIBILITY_CHANGE', 'visible') ipcMain.once('pong', function (event, visibilityState, hidden) { assert.equal(visibilityState, 'visible') assert.equal(hidden, false) done() }) }) w.loadURL('file://' + fixtures + '/pages/webview-visibilitychange.html') }) })