electron/spec/api-ipc-spec.js

609 строки
20 KiB
JavaScript

'use strict'
const assert = require('assert')
const http = require('http')
const path = require('path')
const {closeWindow} = require('./window-helpers')
const {ipcRenderer, remote} = require('electron')
const {ipcMain, webContents, BrowserWindow} = remote
const comparePaths = (path1, path2) => {
if (process.platform === 'win32') {
path1 = path1.toLowerCase()
path2 = path2.toLowerCase()
}
assert.equal(path1, path2)
}
describe('ipc module', () => {
const fixtures = path.join(__dirname, 'fixtures')
let w = null
afterEach(() => closeWindow(w).then(() => { w = null }))
describe('remote.require', () => {
it('should returns same object for the same module', () => {
const dialog1 = remote.require('electron')
const dialog2 = remote.require('electron')
assert.equal(dialog1, dialog2)
})
it('should work when object contains id property', () => {
const a = remote.require(path.join(fixtures, 'module', 'id.js'))
assert.equal(a.id, 1127)
})
it('should work when object has no prototype', () => {
const a = remote.require(path.join(fixtures, 'module', 'no-prototype.js'))
assert.equal(a.foo.constructor.name, '')
assert.equal(a.foo.bar, 'baz')
assert.equal(a.foo.baz, false)
assert.equal(a.bar, 1234)
assert.equal(a.anonymous.constructor.name, '')
assert.equal(a.getConstructorName(Object.create(null)), '')
assert.equal(a.getConstructorName(new (class {})()), '')
})
it('should search module from the user app', () => {
comparePaths(path.normalize(remote.process.mainModule.filename), path.resolve(__dirname, 'static', 'main.js'))
comparePaths(path.normalize(remote.process.mainModule.paths[0]), path.resolve(__dirname, 'static', 'node_modules'))
})
it('should work with function properties', () => {
let a = remote.require(path.join(fixtures, 'module', 'export-function-with-properties.js'))
assert.equal(typeof a, 'function')
assert.equal(a.bar, 'baz')
a = remote.require(path.join(fixtures, 'module', 'function-with-properties.js'))
assert.equal(typeof a, 'object')
assert.equal(a.foo(), 'hello')
assert.equal(a.foo.bar, 'baz')
assert.equal(a.foo.nested.prop, 'yes')
assert.equal(a.foo.method1(), 'world')
assert.equal(a.foo.method1.prop1(), 123)
assert.ok(Object.keys(a.foo).includes('bar'))
assert.ok(Object.keys(a.foo).includes('nested'))
assert.ok(Object.keys(a.foo).includes('method1'))
a = remote.require(path.join(fixtures, 'module', 'function-with-missing-properties.js')).setup()
assert.equal(a.bar(), true)
assert.equal(a.bar.baz, undefined)
})
it('should work with static class members', () => {
const a = remote.require(path.join(fixtures, 'module', 'remote-static.js'))
assert.equal(typeof a.Foo, 'function')
assert.equal(a.Foo.foo(), 3)
assert.equal(a.Foo.bar, 'baz')
const foo = new a.Foo()
assert.equal(foo.baz(), 123)
})
it('includes the length of functions specified as arguments', () => {
const a = remote.require(path.join(fixtures, 'module', 'function-with-args.js'))
assert.equal(a((a, b, c, d, f) => {}), 5)
assert.equal(a((a) => {}), 1)
assert.equal(a((...args) => {}), 0)
})
it('handles circular references in arrays and objects', () => {
const a = remote.require(path.join(fixtures, 'module', 'circular.js'))
let arrayA = ['foo']
const arrayB = [arrayA, 'bar']
arrayA.push(arrayB)
assert.deepEqual(a.returnArgs(arrayA, arrayB), [
['foo', [null, 'bar']],
[['foo', null], 'bar']
])
let objectA = {foo: 'bar'}
const objectB = {baz: objectA}
objectA.objectB = objectB
assert.deepEqual(a.returnArgs(objectA, objectB), [
{foo: 'bar', objectB: {baz: null}},
{baz: {foo: 'bar', objectB: null}}
])
arrayA = [1, 2, 3]
assert.deepEqual(a.returnArgs({foo: arrayA}, {bar: arrayA}), [
{foo: [1, 2, 3]},
{bar: [1, 2, 3]}
])
objectA = {foo: 'bar'}
assert.deepEqual(a.returnArgs({foo: objectA}, {bar: objectA}), [
{foo: {foo: 'bar'}},
{bar: {foo: 'bar'}}
])
arrayA = []
arrayA.push(arrayA)
assert.deepEqual(a.returnArgs(arrayA), [
[null]
])
objectA = {}
objectA.foo = objectA
objectA.bar = 'baz'
assert.deepEqual(a.returnArgs(objectA), [
{foo: null, bar: 'baz'}
])
objectA = {}
objectA.foo = {bar: objectA}
objectA.bar = 'baz'
assert.deepEqual(a.returnArgs(objectA), [
{foo: {bar: null}, bar: 'baz'}
])
})
})
describe('remote.createFunctionWithReturnValue', () => {
it('should be called in browser synchronously', () => {
const buf = Buffer.from('test')
const call = remote.require(path.join(fixtures, 'module', 'call.js'))
const result = call.call(remote.createFunctionWithReturnValue(buf))
assert.equal(result.constructor.name, 'Buffer')
})
})
describe('remote modules', () => {
it('includes browser process modules as properties', () => {
assert.equal(typeof remote.app.getPath, 'function')
assert.equal(typeof remote.webContents.getFocusedWebContents, 'function')
assert.equal(typeof remote.clipboard.readText, 'function')
assert.equal(typeof remote.shell.openExternal, 'function')
})
it('returns toString() of original function via toString()', () => {
const {readText} = remote.clipboard
assert(readText.toString().startsWith('function'))
const {functionWithToStringProperty} = remote.require(path.join(fixtures, 'module', 'to-string-non-function.js'))
assert.equal(functionWithToStringProperty.toString, 'hello')
})
})
describe('remote object in renderer', () => {
it('can change its properties', () => {
const property = remote.require(path.join(fixtures, 'module', 'property.js'))
assert.equal(property.property, 1127)
property.property = null
assert.equal(property.property, null)
property.property = undefined
assert.equal(property.property, undefined)
property.property = 1007
assert.equal(property.property, 1007)
assert.equal(property.getFunctionProperty(), 'foo-browser')
property.func.property = 'bar'
assert.equal(property.getFunctionProperty(), 'bar-browser')
property.func.property = 'foo' // revert back
const property2 = remote.require(path.join(fixtures, 'module', 'property.js'))
assert.equal(property2.property, 1007)
property.property = 1127
})
it('rethrows errors getting/setting properties', () => {
const foo = remote.require(path.join(fixtures, 'module', 'error-properties.js'))
assert.throws(() => {
// eslint-disable-next-line
foo.bar
}, /getting error/)
assert.throws(() => {
foo.bar = 'test'
}, /setting error/)
})
it('can set a remote property with a remote object', () => {
const foo = remote.require(path.join(fixtures, 'module', 'remote-object-set.js'))
assert.doesNotThrow(() => {
foo.bar = remote.getCurrentWindow()
})
})
it('can construct an object from its member', () => {
const call = remote.require(path.join(fixtures, 'module', 'call.js'))
const obj = new call.constructor()
assert.equal(obj.test, 'test')
})
it('can reassign and delete its member functions', () => {
const remoteFunctions = remote.require(path.join(fixtures, 'module', 'function.js'))
assert.equal(remoteFunctions.aFunction(), 1127)
remoteFunctions.aFunction = () => { return 1234 }
assert.equal(remoteFunctions.aFunction(), 1234)
assert.equal(delete remoteFunctions.aFunction, true)
})
it('is referenced by its members', () => {
let stringify = remote.getGlobal('JSON').stringify
global.gc()
stringify({})
})
})
describe('remote value in browser', () => {
const print = path.join(fixtures, 'module', 'print_name.js')
const printName = remote.require(print)
it('keeps its constructor name for objects', () => {
const buf = Buffer.from('test')
assert.equal(printName.print(buf), 'Buffer')
})
it('supports instanceof Date', () => {
const now = new Date()
assert.equal(printName.print(now), 'Date')
assert.deepEqual(printName.echo(now), now)
})
it('supports instanceof Buffer', () => {
const buffer = Buffer.from('test')
assert.ok(buffer.equals(printName.echo(buffer)))
const objectWithBuffer = {a: 'foo', b: Buffer.from('bar')}
assert.ok(objectWithBuffer.b.equals(printName.echo(objectWithBuffer).b))
const arrayWithBuffer = [1, 2, Buffer.from('baz')]
assert.ok(arrayWithBuffer[2].equals(printName.echo(arrayWithBuffer)[2]))
})
it('supports TypedArray', () => {
const values = [1, 2, 3, 4]
assert.deepEqual(printName.typedArray(values), values)
const int16values = new Int16Array([1, 2, 3, 4])
assert.deepEqual(printName.typedArray(int16values), int16values)
})
})
describe('remote promise', () => {
it('can be used as promise in each side', (done) => {
const promise = remote.require(path.join(fixtures, 'module', 'promise.js'))
promise.twicePromise(Promise.resolve(1234)).then((value) => {
assert.equal(value, 2468)
done()
})
})
it('handles rejections via catch(onRejected)', (done) => {
const promise = remote.require(path.join(fixtures, 'module', 'rejected-promise.js'))
promise.reject(Promise.resolve(1234)).catch((error) => {
assert.equal(error.message, 'rejected')
done()
})
})
it('handles rejections via then(onFulfilled, onRejected)', (done) => {
const promise = remote.require(path.join(fixtures, 'module', 'rejected-promise.js'))
promise.reject(Promise.resolve(1234)).then(() => {}, (error) => {
assert.equal(error.message, 'rejected')
done()
})
})
it('does not emit unhandled rejection events in the main process', (done) => {
remote.process.once('unhandledRejection', function (reason) {
done(reason)
})
const promise = remote.require(path.join(fixtures, 'module', 'unhandled-rejection.js'))
promise.reject().then(() => {
done(new Error('Promise was not rejected'))
}).catch((error) => {
assert.equal(error.message, 'rejected')
done()
})
})
it('emits unhandled rejection events in the renderer process', (done) => {
window.addEventListener('unhandledrejection', function (event) {
event.preventDefault()
assert.equal(event.reason.message, 'rejected')
done()
})
const promise = remote.require(path.join(fixtures, 'module', 'unhandled-rejection.js'))
promise.reject().then(() => {
done(new Error('Promise was not rejected'))
})
})
})
describe('remote webContents', () => {
it('can return same object with different getters', () => {
const contents1 = remote.getCurrentWindow().webContents
const contents2 = remote.getCurrentWebContents()
assert(contents1 === contents2)
})
})
describe('remote class', () => {
const cl = remote.require(path.join(fixtures, 'module', 'class.js'))
const base = cl.base
let derived = cl.derived
it('can get methods', () => {
assert.equal(base.method(), 'method')
})
it('can get properties', () => {
assert.equal(base.readonly, 'readonly')
})
it('can change properties', () => {
assert.equal(base.value, 'old')
base.value = 'new'
assert.equal(base.value, 'new')
base.value = 'old'
})
it('has unenumerable methods', () => {
assert(!base.hasOwnProperty('method'))
assert(Object.getPrototypeOf(base).hasOwnProperty('method'))
})
it('keeps prototype chain in derived class', () => {
assert.equal(derived.method(), 'method')
assert.equal(derived.readonly, 'readonly')
assert(!derived.hasOwnProperty('method'))
let proto = Object.getPrototypeOf(derived)
assert(!proto.hasOwnProperty('method'))
assert(Object.getPrototypeOf(proto).hasOwnProperty('method'))
})
it('is referenced by methods in prototype chain', () => {
let method = derived.method
derived = null
global.gc()
assert.equal(method(), 'method')
})
})
describe('ipc.sender.send', () => {
it('should work when sending an object containing id property', (done) => {
const obj = {
id: 1,
name: 'ly'
}
ipcRenderer.once('message', function (event, message) {
assert.deepEqual(message, obj)
done()
})
ipcRenderer.send('message', obj)
})
it('can send instances of Date', (done) => {
const currentDate = new Date()
ipcRenderer.once('message', function (event, value) {
assert.equal(value, currentDate.toISOString())
done()
})
ipcRenderer.send('message', currentDate)
})
it('can send instances of Buffer', (done) => {
const buffer = Buffer.from('hello')
ipcRenderer.once('message', function (event, message) {
assert.ok(buffer.equals(message))
done()
})
ipcRenderer.send('message', buffer)
})
it('can send objects with DOM class prototypes', (done) => {
ipcRenderer.once('message', function (event, value) {
assert.equal(value.protocol, 'file:')
assert.equal(value.hostname, '')
done()
})
ipcRenderer.send('message', document.location)
})
it('can send Electron API objects', (done) => {
const webContents = remote.getCurrentWebContents()
ipcRenderer.once('message', function (event, value) {
assert.deepEqual(value.browserWindowOptions, webContents.browserWindowOptions)
done()
})
ipcRenderer.send('message', webContents)
})
it('does not crash on external objects (regression)', (done) => {
const request = http.request({port: 5000, hostname: '127.0.0.1', method: 'GET', path: '/'})
const stream = request.agent.sockets['127.0.0.1:5000:'][0]._handle._externalStream
request.on('error', () => {})
ipcRenderer.once('message', function (event, requestValue, externalStreamValue) {
assert.equal(requestValue.method, 'GET')
assert.equal(requestValue.path, '/')
assert.equal(externalStreamValue, null)
done()
})
ipcRenderer.send('message', request, stream)
})
it('can send objects that both reference the same object', (done) => {
const child = {hello: 'world'}
const foo = {name: 'foo', child: child}
const bar = {name: 'bar', child: child}
const array = [foo, bar]
ipcRenderer.once('message', function (event, arrayValue, fooValue, barValue, childValue) {
assert.deepEqual(arrayValue, array)
assert.deepEqual(fooValue, foo)
assert.deepEqual(barValue, bar)
assert.deepEqual(childValue, child)
done()
})
ipcRenderer.send('message', array, foo, bar, child)
})
it('inserts null for cyclic references', (done) => {
const array = [5]
array.push(array)
const child = {hello: 'world'}
child.child = child
ipcRenderer.once('message', function (event, arrayValue, childValue) {
assert.equal(arrayValue[0], 5)
assert.equal(arrayValue[1], null)
assert.equal(childValue.hello, 'world')
assert.equal(childValue.child, null)
done()
})
ipcRenderer.send('message', array, child)
})
})
describe('ipc.sendSync', () => {
afterEach(() => {
ipcMain.removeAllListeners('send-sync-message')
})
it('can be replied by setting event.returnValue', () => {
const msg = ipcRenderer.sendSync('echo', 'test')
assert.equal(msg, 'test')
})
it('does not crash when reply is not sent and browser is destroyed', (done) => {
w = new BrowserWindow({
show: false
})
ipcMain.once('send-sync-message', function (event) {
event.returnValue = null
done()
})
w.loadURL('file://' + path.join(fixtures, 'api', 'send-sync-message.html'))
})
it('does not crash when reply is sent by multiple listeners', (done) => {
w = new BrowserWindow({
show: false
})
ipcMain.on('send-sync-message', function (event) {
event.returnValue = null
})
ipcMain.on('send-sync-message', function (event) {
event.returnValue = null
done()
})
w.loadURL('file://' + path.join(fixtures, 'api', 'send-sync-message.html'))
})
})
describe('ipcRenderer.sendTo', () => {
let contents = null
beforeEach(() => {
contents = webContents.create({})
})
afterEach(() => {
ipcRenderer.removeAllListeners('pong')
contents.destroy()
contents = null
})
it('sends message to WebContents', (done) => {
const webContentsId = remote.getCurrentWebContents().id
ipcRenderer.once('pong', function (event, id) {
assert.equal(webContentsId, id)
done()
})
contents.once('did-finish-load', () => {
ipcRenderer.sendTo(contents.id, 'ping', webContentsId)
})
contents.loadURL('file://' + path.join(fixtures, 'pages', 'ping-pong.html'))
})
})
describe('remote listeners', () => {
it('can be added and removed correctly', () => {
w = new BrowserWindow({
show: false
})
const listener = () => {}
w.on('test', listener)
assert.equal(w.listenerCount('test'), 1)
w.removeListener('test', listener)
assert.equal(w.listenerCount('test'), 0)
})
it('detaches listeners subscribed to destroyed renderers, and shows a warning', (done) => {
w = new BrowserWindow({
show: false
})
w.webContents.once('did-finish-load', () => {
w.webContents.once('did-finish-load', () => {
const expectedMessage = [
'Attempting to call a function in a renderer window that has been closed or released.',
'Function provided here: remote-event-handler.html:11:33',
'Remote event names: remote-handler, other-remote-handler'
].join('\n')
const results = ipcRenderer.sendSync('try-emit-web-contents-event', w.webContents.id, 'remote-handler')
assert.deepEqual(results, {
warningMessage: expectedMessage,
listenerCountBefore: 2,
listenerCountAfter: 1
})
done()
})
w.webContents.reload()
})
w.loadURL('file://' + path.join(fixtures, 'api', 'remote-event-handler.html'))
})
})
it('throws an error when removing all the listeners', () => {
ipcMain.on('test-event', () => {})
assert.equal(ipcMain.listenerCount('test-event'), 1)
ipcRenderer.on('test-event', () => {})
assert.equal(ipcRenderer.listenerCount('test-event'), 1)
assert.throws(() => {
ipcMain.removeAllListeners()
}, /Removing all listeners from ipcMain will make Electron internals stop working/)
assert.throws(() => {
ipcRenderer.removeAllListeners()
}, /Removing all listeners from ipcRenderer will make Electron internals stop working/)
ipcMain.removeAllListeners('test-event')
assert.equal(ipcMain.listenerCount('test-event'), 0)
ipcRenderer.removeAllListeners('test-event')
assert.equal(ipcRenderer.listenerCount('test-event'), 0)
})
describe('remote objects registry', () => {
it('does not dereference until the render view is deleted (regression)', (done) => {
w = new BrowserWindow({
show: false
})
ipcMain.once('error-message', (event, message) => {
assert(message.startsWith('Cannot call function \'getURL\' on missing remote object'), message)
done()
})
w.loadURL('file://' + path.join(fixtures, 'api', 'render-view-deleted.html'))
})
})
})