fix(electron): fix the directory app path (#19601)

packages/playwright-core/src/client/electron.ts

@@ -62,6 +62,7 @@ export class ElectronApplication extends ChannelOwner<channels.ElectronApplicati
   readonly _context: BrowserContext;
   private _windows = new Set<Page>();
   private _timeoutSettings = new TimeoutSettings();
+  private _isClosed = false;
 
   static from(electronApplication: channels.ElectronApplicationChannel): ElectronApplication {
     return (electronApplication as any)._object;
@@ -73,7 +74,10 @@ export class ElectronApplication extends ChannelOwner<channels.ElectronApplicati
     for (const page of this._context._pages)
       this._onPage(page);
     this._context.on(Events.BrowserContext.Page, page => this._onPage(page));
-    this._channel.on('close', () => this.emit(Events.ElectronApplication.Close));
+    this._channel.on('close', () => {
+      this._isClosed = true;
+      this.emit(Events.ElectronApplication.Close);
+    });
   }
 
   process(): childProcess.ChildProcess {
@@ -102,6 +106,8 @@ export class ElectronApplication extends ChannelOwner<channels.ElectronApplicati
   }
 
   async close() {
+    if (this._isClosed)
+      return;
     await this._channel.close();
   }
 

packages/playwright-core/src/server/electron/loader.ts

@@ -15,6 +15,7 @@
  */
 
 const { app } = require('electron');
+const fs = require('fs');
 const path = require('path');
 const { chromiumSwitches } = require('../chromium/chromiumSwitches');
 
@@ -42,7 +43,13 @@ app.emit = (event: string | symbol, ...args: any[]): boolean => {
   }
   return originalEmit(event, ...args);
 };
-app.getAppPath = () => path.dirname(appPath);
+
+app.getAppPath = () => {
+  if (fs.statSync(appPath).isFile())
+    return path.dirname(appPath);
+  return appPath;
+};
+
 let isReady = false;
 let whenReadyCallback: (event: any) => any;
 const whenReadyPromise = new Promise<void>(f => whenReadyCallback = f);

tests/electron/electron-app-pre-ready-app.js

@@ -0,0 +1,2 @@
+const {  protocol } = require('electron');
+protocol.registerSchemesAsPrivileged([]);

tests/electron/electron-app.js

@@ -1,9 +1,6 @@
 const { app, protocol } = require('electron');
 const path = require('path');
 
-// Test using pre-ready apis.
-protocol.registerSchemesAsPrivileged([]);
-
 app.on('window-all-closed', e => e.preventDefault());
 
 app.whenReady().then(() => {

tests/electron/electron-app.spec.ts

@@ -19,10 +19,8 @@ import path from 'path';
 import fs from 'fs';
 import { electronTest as test, expect } from './electronTest';
 
-test('should fire close event', async ({ playwright }) => {
-  const electronApp = await playwright._electron.launch({
-    args: [path.join(__dirname, 'electron-app.js')],
-  });
+test('should fire close event', async ({ launchElectronApp }) => {
+  const electronApp = await launchElectronApp('electron-app.js');
   const events = [];
   electronApp.on('close', () => events.push('application'));
   electronApp.context().on('close', () => events.push('context'));
@@ -33,22 +31,16 @@ test('should fire close event', async ({ playwright }) => {
   expect(events.join('|')).toBe('context|application');
 });
 
-test('should dispatch ready event', async ({ playwright }) => {
-  const electronApp = await playwright._electron.launch({
-    args: [path.join(__dirname, 'electron-app-ready-event.js')],
-  });
-  try {
-    const events = await electronApp.evaluate(() => globalThis.__playwrightLog);
-    expect(events).toEqual([
-      'isReady == false',
-      'will-finish-launching fired',
-      'ready fired',
-      'whenReady resolved',
-      'isReady == true',
-    ]);
-  } finally {
-    await electronApp.close();
-  }
+test('should dispatch ready event', async ({ launchElectronApp }) => {
+  const electronApp = await launchElectronApp('electron-app-ready-event.js');
+  const events = await electronApp.evaluate(() => globalThis.__playwrightLog);
+  expect(events).toEqual([
+    'isReady == false',
+    'will-finish-launching fired',
+    'ready fired',
+    'whenReady resolved',
+    'isReady == true',
+  ]);
 });
 
 test('should script application', async ({ electronApp }) => {
@@ -114,28 +106,19 @@ test('should have a clipboard instance', async ({ electronApp }) => {
   expect(clipboardContentRead).toEqual(clipboardContentToWrite);
 });
 
-test('should test app that opens window fast', async ({ playwright }) => {
-  const electronApp = await playwright._electron.launch({
-    args: [path.join(__dirname, 'electron-window-app.js')],
-  });
-  await electronApp.close();
+test('should test app that opens window fast', async ({ launchElectronApp }) => {
+  await launchElectronApp('electron-window-app.js');
 });
 
-test('should return browser window', async ({ playwright }) => {
-  const electronApp = await playwright._electron.launch({
-    args: [path.join(__dirname, 'electron-window-app.js')],
-  });
+test('should return browser window', async ({ launchElectronApp }) => {
+  const electronApp = await launchElectronApp('electron-window-app.js');
   const page = await electronApp.firstWindow();
   const bwHandle = await electronApp.browserWindow(page);
   expect(await bwHandle.evaluate((bw: BrowserWindow) => bw.title)).toBe('Electron');
-  await electronApp.close();
 });
 
-test('should bypass csp', async ({ playwright, server }) => {
-  const app = await playwright._electron.launch({
-    args: [require('path').join(__dirname, 'electron-app.js')],
-    bypassCSP: true,
-  });
+test('should bypass csp', async ({ launchElectronApp, server }) => {
+  const app = await launchElectronApp('electron-app.js', { bypassCSP: true });
   await app.evaluate(electron => {
     const window = new electron.BrowserWindow({
       width: 800,
@@ -147,13 +130,10 @@ test('should bypass csp', async ({ playwright, server }) => {
   await page.goto(server.PREFIX + '/csp.html');
   await page.addScriptTag({ content: 'window["__injected"] = 42;' });
   expect(await page.evaluate('window["__injected"]')).toBe(42);
-  await app.close();
 });
 
-test('should create page for browser view', async ({ playwright }) => {
-  const app = await playwright._electron.launch({
-    args: [path.join(__dirname, 'electron-window-app.js')],
-  });
+test('should create page for browser view', async ({ launchElectronApp }) => {
+  const app = await launchElectronApp('electron-window-app.js');
   await app.firstWindow();
   await app.evaluate(async electron => {
     const window = electron.BrowserWindow.getAllWindows()[0];
@@ -163,13 +143,10 @@ test('should create page for browser view', async ({ playwright }) => {
     view.setBounds({ x: 0, y: 0, width: 256, height: 256 });
   });
   await expect.poll(() => app.windows().length).toBe(2);
-  await app.close();
 });
 
-test('should return same browser window for browser view pages', async ({ playwright }) => {
-  const app = await playwright._electron.launch({
-    args: [path.join(__dirname, 'electron-window-app.js')],
-  });
+test('should return same browser window for browser view pages', async ({ launchElectronApp }) => {
+  const app = await launchElectronApp('electron-window-app.js');
   await app.firstWindow();
   await app.evaluate(async electron => {
     const window = electron.BrowserWindow.getAllWindows()[0];
@@ -187,12 +164,10 @@ test('should return same browser window for browser view pages', async ({ playwr
       })
   );
   expect(firstWindowId).toEqual(secondWindowId);
-  await app.close();
 });
 
-test('should record video', async ({ playwright }, testInfo) => {
-  const app = await playwright._electron.launch({
-    args: [path.join(__dirname, 'electron-window-app.js')],
+test('should record video', async ({ launchElectronApp }, testInfo) => {
+  const app = await launchElectronApp('electron-window-app.js', {
     recordVideo: { dir: testInfo.outputPath('video') }
   });
   const page = await app.firstWindow();
@@ -203,25 +178,31 @@ test('should record video', async ({ playwright }, testInfo) => {
   expect(fs.statSync(videoPath).size).toBeGreaterThan(0);
 });
 
-test('should be able to get the first window when with a delayed navigation', async ({ playwright }) => {
+test('should be able to get the first window when with a delayed navigation', async ({ launchElectronApp }) => {
   test.info().annotations.push({ type: 'issue', description: 'https://github.com/microsoft/playwright/issues/17765' });
 
-  const app = await playwright._electron.launch({
-    args: [path.join(__dirname, 'electron-window-app-delayed-loadURL.js')],
-  });
+  const app = await launchElectronApp('electron-window-app-delayed-loadURL.js');
   const page = await app.firstWindow();
   await expect(page).toHaveURL('data:text/html,<h1>Foobar</h1>');
   await expect(page.locator('h1')).toHaveText('Foobar');
-  await app.close();
 });
 
-test('should detach debugger on app-initiated exit', async ({ playwright }) => {
-  const electronApp = await playwright._electron.launch({
-    args: [path.join(__dirname, 'electron-app.js')],
-  });
+test('should detach debugger on app-initiated exit', async ({ launchElectronApp }) => {
+  const electronApp = await launchElectronApp('electron-app.js');
   const closePromise = new Promise(f => electronApp.process().on('close', f));
   await electronApp.evaluate(({ app }) => {
     app.quit();
   });
   await closePromise;
 });
+
+test('should run pre-ready apis', async ({ launchElectronApp }) => {
+  await launchElectronApp('electron-pre-ready-app.js');
+});
+
+test('should resolve app path for folder apps', async ({ launchElectronApp }) => {
+  const electronApp = await launchElectronApp('.');
+  const appPath = await electronApp.evaluate(async ({ app }) => app.getAppPath());
+  expect(appPath).toBe(path.resolve(__dirname));
+  await electronApp.close();
+});

tests/electron/electronTest.ts

@@ -26,6 +26,7 @@ import { assert } from 'playwright-core/lib/utils';
 
 type ElectronTestFixtures = PageTestFixtures & {
   electronApp: ElectronApplication;
+  launchElectronApp: (appFile: string, options?: any) => Promise<ElectronApplication>;
   newWindow: () => Promise<Page>;
 };
 
@@ -40,14 +41,21 @@ export const electronTest = baseTest.extend<TraceViewerFixtures>(traceViewerFixt
   isElectron: [true, { scope: 'worker' }],
   isWebView2: [false, { scope: 'worker' }],
 
-  electronApp: async ({ playwright }, run) => {
+  launchElectronApp: async ({ playwright }, use) => {
     // This env prevents 'Electron Security Policy' console message.
     process.env['ELECTRON_DISABLE_SECURITY_WARNINGS'] = 'true';
-    const electronApp = await playwright._electron.launch({
-      args: [path.join(__dirname, 'electron-app.js')],
+    const apps: ElectronApplication[] = [];
+    await use(async (appFile: string, options?: any[]) => {
+      const app = await playwright._electron.launch({ ...options, args: [path.join(__dirname, appFile)] });
+      apps.push(app);
+      return app;
     });
-    await run(electronApp);
-    await electronApp.close();
+    for (const app of apps)
+      await app.close();
+  },
+
+  electronApp: async ({ launchElectronApp }, use) => {
+    await use(await launchElectronApp('electron-app.js'));
   },
 
   newWindow: async ({ electronApp }, run) => {

tests/electron/index.js

@@ -0,0 +1 @@
+require('electron');