Testing in Incognito Mode with Playwright

Testing in incognito mode is crucial for ensuring that your application behaves as expected for users who prefer private browsing. Playwright makes it easy to simulate and automate tests in incognito mode. In this post, we’ll explore how to effectively use Playwright for testing in incognito mode.

Incognito mode, or private browsing, is a feature in modern browsers that allows users to browse without saving their history, cookies, or other session data.

Why Test in Incognito Mode?

1. No Stored Cookies or Cache: Ensure that your application works without relying on cached data or existing sessions.
2. Privacy-Centric Users: Validate functionality for users who prefer private browsing.
3. Session Isolation: Test scenarios where multiple sessions need to run independently. ## 2. Setting Up Incognito Mode with Playwright.

Playwright provides a straightforward way to create browser contexts that simulate incognito mode.

Creating an Incognito Browser Context

An incognito context is created using browser.newContext() without sharing cookies, cache, or local storage with other contexts.

const { chromium } = require('playwright');

(async () => {
  const browser = await chromium.launch();
  const context = await browser.newContext(); // Incognito mode
  const page = await context.newPage();

  await page.goto('https://example.com');
  console.log(await page.title());

  await browser.close();
})();

Testing in incognito mode is a critical aspect of ensuring privacy and reliability for all users. Playwright’s support for creating isolated browser contexts makes it an excellent tool for automating these tests.