Send messages between app via socket connection

spec/api-app-spec.js

@@ -568,19 +568,46 @@ describe('app module', function () {
   })
 
   describe('mixed sandbox option', function () {
-    let appProcess
+    let appProcess = null
+    let server = null
+    const socketPath = process.platform === 'win32' ? '\\\\.\\pipe\\electron-mixed-sandbox' : '/tmp/electron-mixed-sandbox'
 
-    afterEach(function () {
+    beforeEach(function (done) {
+      fs.unlink(socketPath, () => {
+        server = net.createServer()
+        server.listen(socketPath)
+        done()
+      })
+    })
+
+    afterEach(function (done) {
       if (appProcess != null) {
         appProcess.kill()
       }
+
+      server.close(() => {
+        if (process.platform === 'win32') {
+          done()
+        } else {
+          fs.unlink(socketPath, () => {
+            done()
+          })
+        }
+      })
     })
 
     describe('when app.enableMixedSandbox() is called', () => {
       it('adds --enable-sandbox to render processes created with sandbox: true', (done) => {
         const appPath = path.join(__dirname, 'fixtures', 'api', 'mixed-sandbox-app')
-        appProcess = ChildProcess.spawn(remote.process.execPath, [appPath], {stdio: ['ignore', 'ipc', 'ignore']})
+        appProcess = ChildProcess.spawn(remote.process.execPath, [appPath])
-        appProcess.once('message', (argv) => {
+
+        server.once('error', (error) => {
+          done(error)
+        })
+
+        server.on('connection', (client) => {
+          client.once('data', function (data) {
+            const argv = JSON.parse(data)
             assert.equal(argv.sandbox.includes('--enable-sandbox'), true)
             assert.equal(argv.sandbox.includes('--no-sandbox'), false)
 
@@ -591,12 +618,20 @@ describe('app module', function () {
           })
         })
       })
+    })
 
     describe('when the app is launched with --enable-mixed-sandbox', () => {
       it('adds --enable-sandbox to render processes created with sandbox: true', (done) => {
         const appPath = path.join(__dirname, 'fixtures', 'api', 'mixed-sandbox-app')
-        appProcess = ChildProcess.spawn(remote.process.execPath, [appPath, '--enable-mixed-sandbox'], {stdio: ['ignore', 'ipc', 'ignore']})
+        appProcess = ChildProcess.spawn(remote.process.execPath, [appPath, '--enable-mixed-sandbox'])
-        appProcess.once('message', (argv) => {
+
+        server.once('error', (error) => {
+          done(error)
+        })
+
+        server.on('connection', (client) => {
+          client.once('data', function (data) {
+            const argv = JSON.parse(data)
             assert.equal(argv.sandbox.includes('--enable-sandbox'), true)
             assert.equal(argv.sandbox.includes('--no-sandbox'), false)
 
@@ -608,4 +643,5 @@ describe('app module', function () {
         })
       })
     })
+  })
 })

spec/fixtures/api/mixed-sandbox-app/main.js

@@ -1,4 +1,5 @@
 const {app, BrowserWindow, ipcMain} = require('electron')
+const net = require('net')
 const path = require('path')
 
 process.on('uncaughtException', () => {
@@ -44,7 +45,14 @@ app.once('ready', () => {
     }
 
     if (argv.sandbox != null && argv.noSandbox != null) {
-      process.send(argv)
+      const socketPath = process.platform === 'win32' ? '\\\\.\\pipe\\electron-mixed-sandbox' : '/tmp/electron-mixed-sandbox'
+      const client = net.connect(socketPath)
+      client.once('connect', () => {
+        client.end(JSON.stringify(argv))
+      })
+      client.once('end', () => {
+        app.exit(0)
+      })
     }
   })
 })