Writing Your First End-to-End Test in Playwright

 In today’s fast-paced development cycles, ensuring your web application works correctly across browsers is crucial. Playwright, an open-source end-to-end (E2E) testing framework by Microsoft, makes this task easier and faster. It allows you to test your web apps across Chromium, Firefox, and WebKit with a single API. In this blog, we’ll walk through the steps to write your first end-to-end test in Playwright.

What is Playwright?

Playwright is a powerful automation tool for testing modern web applications. It supports multiple browsers, headless or headful execution, and is ideal for simulating real user interactions like clicking, typing, and navigating across pages.

Step 1: Installing Playwright

To begin, ensure you have Node.js installed. Then run the following command:

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npm init playwright@latest

This initializes a new project and installs Playwright with default settings. It also sets up sample tests and configuration files.

Step 2: Create Your First Test

Create a new file called example.spec.js (or .ts if using TypeScript). Here's a simple example:

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const { test, expect } = require('@playwright/test');

test('Verify Google search works', async ({ page }) => {

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

  await page.locator('input[name="q"]').fill('Playwright testing');

  await page.keyboard.press('Enter');

  await page.waitForTimeout(2000);

  await expect(page).toHaveTitle(/Playwright testing/i);

});

This test launches a browser, navigates to Google, searches for “Playwright testing,” and verifies the title contains the search term.

Step 3: Run the Test

To execute your test, run:

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npx playwright test

By default, Playwright runs tests in headless mode. You can add --headed to watch the test in action.

Step 4: View Results

After the test completes, Playwright provides a summary in the terminal. To view detailed results, including screenshots and traces:

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npx playwright show-report

This opens an interactive HTML report showing the test steps, timings, and assertions.

Conclusion

Playwright offers a modern, reliable, and developer-friendly approach to end-to-end testing. With support for multiple browsers and platforms, easy setup, and rich features like auto-waiting and built-in reporting, it's an excellent tool for automating your UI tests. Writing your first Playwright test is just the beginning—explore its advanced features to take your testing to the next level.

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