Responsive Testing with BrowserStack

 🌐 What is Responsive Testing?

Responsive testing ensures your website or app works and looks good on different screen sizes, devices, and browsers — from iPhones and Android phones to tablets and large desktops.


🧪 Why Use BrowserStack?

BrowserStack is a cloud-based testing platform that lets you:


Test on real devices, not emulators


Run tests across 2,000+ browser and OS combinations


Perform manual and automated testing


Integrate with CI/CD tools (Jenkins, GitHub, etc.)


✅ No need to maintain your own device lab.


🔧 How to Do Responsive Testing with BrowserStack

✅ 1. Manual Testing Using Live

BrowserStack Live lets you interactively test websites.


Steps:

Go to https://live.browserstack.com


Select a device/browser (e.g., iPhone 14, Chrome on Windows)


Enter your website URL


Interact and verify:


Layout consistency


Font and image scaling


Navigation behavior


🧠 Tip: Test key pages — homepage, login, forms, etc.


✅ 2. Automated Responsive Testing with Playwright/Selenium

Use BrowserStack’s cloud grid with frameworks like:


Playwright


Selenium


Cypress


Example (Playwright + BrowserStack):

ts

Copy

Edit

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


(async () => {

  const browser = await chromium.connectOverCDP({

    wsEndpoint: 'wss://cdp.browserstack.com/playwright?...',

  });

  const page = await browser.newPage();

  await page.goto('https://yourwebsite.com');

  await page.setViewportSize({ width: 375, height: 812 }); // iPhone X

  await page.screenshot({ path: 'iphone-view.png' });

  await browser.close();

})();

🔄 Repeat for different screen sizes (desktop, tablet, etc.)


✅ 3. Use BrowserStack Responsive Checker (Quick Visual Check)

Visit https://www.browserstack.com/responsive


Enter a URL


Instantly see it across popular screen sizes


⚠ Note: Good for static layout checks, not interactive testing.


🛠 Best Practices for Responsive Testing

Tip Why it Matters

✅ Test on real devices Emulators often don’t capture all layout/behavior issues

📱 Cover all breakpoints Mobile (320–480px), Tablet (768px), Desktop (1024px+)

🎯 Focus on critical paths Test login, signup, checkout, etc.

🔄 Automate repetitive checks Speeds up regression testing

🧪 Use visual regression tools Catch subtle layout shifts

📦 Integrate into CI/CD Catch layout bugs before deployment


📚 Example Viewports to Test

Device Width × Height

iPhone SE (2020) 375×667

iPhone 14 Pro 390×844

iPad Air 820×1180

Pixel 7 412×915

Desktop (HD) 1366×768

Desktop (Full HD) 1920×1080


📦 BrowserStack Integrations

CI/CD Tools: Jenkins, GitHub Actions, GitLab CI


Test Frameworks: Playwright, Selenium, Cypress


Project Management: JIRA, Slack (notifications)


✅ Summary Checklist

Task Done?

Test layout across key devices & browsers ☐

Use real devices via BrowserStack Live ☐

Automate with Playwright or Selenium ☐

Include responsive checks in CI/CD ☐

Use screenshots/videos for reporting bugs ☐


🚀 Ready to Scale?

Start with BrowserStack Live for manual checks


Move to Automated Testing for consistency


Add visual regression tools like Percy (BrowserStack Visual Testing) for layout snapshots

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Advanced Page Object Model in Selenium

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