test: move robotjs-based devtools paste test to main runner (#20095)

spec-main/api-web-contents-spec.ts

@@ -3,10 +3,10 @@ import { AddressInfo } from 'net'
 import * as chaiAsPromised from 'chai-as-promised'
 import * as path from 'path'
 import * as http from 'http'
-import { BrowserWindow, ipcMain, webContents, session } from 'electron'
-import { emittedOnce } from './events-helpers';
-import { closeAllWindows } from './window-helpers';
-import { ifdescribe } from './spec-helpers';
+import { BrowserWindow, ipcMain, webContents, session, clipboard } from 'electron'
+import { emittedOnce } from './events-helpers'
+import { closeAllWindows } from './window-helpers'
+import { ifdescribe, ifit } from './spec-helpers'
 
 const { expect } = chai
 
@@ -951,4 +951,58 @@ describe('webContents module', () => {
       w.loadFile(path.join(fixturesPath, 'pages', 'c.html'))
     })
   })
+
+  describe('devtools window', () => {
+    let hasRobotJS = false
+    try {
+      // We have other tests that check if native modules work, if we fail to require
+      // robotjs let's skip this test to avoid false negatives
+      require('robotjs')
+      hasRobotJS = true
+    } catch (err) { /* no-op */ }
+
+    afterEach(closeAllWindows)
+
+    // NB. on macOS, this requires that you grant your terminal the ability to
+    // control your computer. Open System Preferences > Security & Privacy >
+    // Privacy > Accessibility and grant your terminal the permission to control
+    // your computer.
+    ifit(hasRobotJS)('can receive and handle menu events', async () => {
+      const w = new BrowserWindow({ show: true, webPreferences: { nodeIntegration: true } })
+      w.loadFile(path.join(fixturesPath, 'pages', 'key-events.html'))
+
+      // Ensure the devtools are loaded
+      w.webContents.closeDevTools()
+      const opened = emittedOnce(w.webContents, 'devtools-opened')
+      w.webContents.openDevTools()
+      await opened
+      await emittedOnce(w.webContents.devToolsWebContents, 'did-finish-load')
+      w.webContents.devToolsWebContents.focus()
+
+      // Focus an input field
+      await w.webContents.devToolsWebContents.executeJavaScript(`
+        const input = document.createElement('input')
+        document.body.innerHTML = ''
+        document.body.appendChild(input)
+        input.focus()
+      `)
+
+      // Write something to the clipboard
+      clipboard.writeText('test value')
+
+      const pasted = w.webContents.devToolsWebContents.executeJavaScript(`new Promise(resolve => {
+        document.querySelector('input').addEventListener('paste', (e) => {
+          resolve(e.target.value)
+        })
+      })`)
+
+      // Fake a paste request using robotjs to emulate a REAL keyboard paste event
+      require('robotjs').keyTap('v', process.platform === 'darwin' ? ['command'] : ['control'])
+
+      const val = await pasted
+
+      // Once we're done expect the paste to have been successful
+      expect(val).to.equal('test value', 'value should eventually become the pasted value')
+    })
+  })
 })