Playwright

📄 About

Wopee.io integrates seamlessly with Playwright to enhance test coverage, expedite maintenance, and ensure more resilient test runs. With a vision of autonomous visual testing, Wopee.io enables easy visual validation integration into your existing Playwright tests, providing an extra layer of quality assurance.

Playwright is a modern, open-source test automation framework designed for JavaScript developers and QA engineers however it also provide bindings in multiple additional languages like Java, Python, or .NET.

Key features of Playwright include:

• Cross-browser Testing: Run tests across multiple browsers including Chromium, Firefox, and WebKit.
• Automated Web Interactions: Easily simulate user interactions for comprehensive testing.
• Flexible and Powerful API: Robust API for creating and managing tests.
• Visual Comparisons: Built-in support for capturing and comparing screenshots.
• Efficient Execution: Tests run in parallel for faster results.
• Network Interception: Full control over network traffic and requests.
• Headless and Headed Modes: Run tests in both headless and headed browser modes.

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🚀 Quickstart

1. Get Sample project

• Navigate to cmd.Wopee.io and click NEW INTEGRATION button Playwright.

• Fill in the project name and click CREATE.

• Confirm an invitation to GitHub private repository with sample tests. (Which you will recieve via email after project creation.)

2. Run Sample project

• Run those sample tests using GitHub Actions directly from the GitHub page of the sample repository.

Detailed instructions are placed in README.md file inside the sample repository.

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🧑‍💻 Integrate w. your tests

To start visual testing with your existing Playwright tests, leverage the benefits of the Wopee.io. Follow the steps below to install the plugin.

1. Install dependencies

Prerequisites

• Existing Playwright tests (if you need some, follow the Quickstart to get Sample project)

Installation

• Install @wopee-io/wopee.pw npm package into your existing Playwright project:

  npm i -D @wopee-io/wopee.pw
  

Environment setup

• Set following environment variables:

  WOPEE_PROJECT_UUID=your-project-uuid
  WOPEE_API_KEY=your-api-key
  

Where to find project UUID and API key in cmd.Wopee.io?

Create a new Playwright project

• Navigate to cmd.Wopee.io and click NEW INTEGRATION button Playwright.

• Fill in the project name and click CREATE.

Find your project UUID and API key in the PROJECT SETTINGS / API Keys section.

How to set env variables?

Set API key via command

Before running the visual test, set up your API key as an environment variable named WOPEE_API_KEY. You may set it from the command line like this:

Linux/MacOSWindows

export WOPEE_API_KEY=your-api-key

set WOPEE_API_KEY=your-api-key

Set project UUID via .env file

You need to set your own .env file to your project.

This is a sample .env file:

# Mandatory
WOPEE_PROJECT_UUID=your-project-uuid

Full list of .env file parameters could be found in our playwright-template / .env.example.

2. Modify your tests

Start session

• Add wopee.startSuite() into beforeAll or equivalent hook.

  let wopee: Wopee
  test.beforeAll(async () => {
      wopee = new Wopee()
      await wopee.startSuite('Minimal example')
  })
  

wopee.startSuite() function explained

The wopee.startSuite() command initializes a session with the Wopee.io platform.

This function might be called before any calls to wopee.track...(). Therefore, it is recommended to place it in the beforeAll hook or equivalent for your test suite.

Test visually

• Add wopee.track...() into individual tests wherever you need visual assertion.

  await wopee.trackFullPage({stepName: 'exmplePageComparison'});
  

wopee.tracktrackFullPage(), wopee.trackElement() and wopee.trackImage() functions explained

For automatic visual testing assertion, you can use one of the following functions. Which can capture and test whole page, individual element or any image you can provide.

The wopee.track...() functions are used to capture screenshots and compare them with the baseline images stored in the Wopee.io platform.

await wopee.trackFullPage({stepName: 'exmplePageComparison'});

await wopee.trackElement({locator: element, stepName: 'exampleElementComparison'});

await wopee.trackImage({ imageBase64: imageBase64,, stepName: 'exampleImageComparison'});

End scenario

• Add wopee.stopScenario() into afterEach or equivalent hook.

  test.afterEach(async () => {
      await wopee.stopScenario()
  })
  

wopee.stopScenario() function explained

The wopee.stopScenario() command finalizes the current scenario which helps to keep your tests organized and separated. Plus you can see if your tests are currently running or not in the Wopee.io platform itself.

This function must be called after all calls to wopee.track...() from the individual test in the afterEach hook or equivalent for your test suite.

3. Run tests as usual

You can run your tests as you would normally do - locally or using some CI/CD tool like GitHub Actions, GitLab CI, Jenkins, etc. The visual testing will be automatically triggered by the wopee.track...() functions placed in your tests.

The only condition is that Wopee.io platform is accessible from the environment where the tests are running.

📚 Examples

Minimal test

To run sample test create a new file tests/mini.spec.ts and paste the following code:

import { Wopee } from '@wopee-io/wopee.pw'
import { test } from '@playwright/test'

test.describe('test', () => {
  let wopee: Wopee
  test.beforeAll(async () => {
    wopee = new Wopee()
    await wopee.startSuite('Minimal example')
  })

  test.afterEach(async () => {
    await wopee.stopScenario()
  })

  test('test', async ({ page }) => {
    await page.goto('https://playwright.dev/')

    const screenshot = await page.screenshot()
    const imageBase64 = screenshot.toString('base64')
    await wopee.trackImage({
      stepName: 'image',
      scenarioName: 'test',
      imageBase64: imageBase64,
    })
  })
})

Complex test

To run sample test create a new file tests/wopee.spec.ts and paste the following code:

import { Wopee } from '@wopee-io/wopee.pw'
import { test } from '@playwright/test'

test.describe('test', () => {
  let wopee: Wopee
  test.beforeAll(async () => {
    wopee = new Wopee()

    const now = new Date()
    const date = `${now.getDate().toString().padStart(2, '0')}-${(now.getMonth() + 1).toString().padStart(2, '0')}-${now.getFullYear()}`
    await wopee.startSuite(`test-${date}`)
  })

  test.afterEach(async () => {
    await wopee.stopScenario()
  })

  test('trackImage', async ({ page }) => {
    await page.goto('https://playwright.dev/')

    const screenshot = await page.screenshot({ type: 'png' })
    const imageBase64 = screenshot.toString('base64')

    await wopee.trackImage({
      comment: 'comment',
      customTags: 'customTags',
      imageBase64: imageBase64,
      pixelToPixelDiffTolerance: 1.0,
      scenarioName: 'trackImageWithoutStartScenario',
      stepName: 'image-trackImage',
      viewport: 'viewport',
    })
  })

  test('trackFullPageScreenshot', async ({ page }) => {
    await page.goto('https://playwright.dev/')

    await wopee.trackFullPage({
      comment: 'comment',
      customTags: 'customTags',
      page: page,
      pixelToPixelDiffTolerance: 1.0,
      scenarioName: 'trackFullPageScreenshotWithoutStartScenario',
      stepName: 'image-trackFullPageScreenshot',
      viewport: 'viewport',
    })
  })

  test('trackElement', async ({ page }) => {
    await page.goto('https://playwright.dev/')

    const element = page.locator('//a[@class="getStarted_Sjon"]')

    await wopee.trackElement({
      comment: 'comment',
      customTags: 'customTags',
      locator: element,
      pixelToPixelDiffTolerance: 1.0,
      scenarioName: 'trackElementWithoutStartScenario',
      stepName: 'element',
      viewport: 'viewport',
    })
  })

  test('trackViewport', async ({ page }) => {
    await page.goto('https://playwright.dev/')

    const element = page.locator('//a[@class="getStarted_Sjon"]')

    await wopee.trackElement({
      comment: 'comment',
      customTags: 'customTags',
      locator: element,
      pixelToPixelDiffTolerance: 1.0,
      scenarioName: 'trackViewportWithoutStartScenario',
      stepName: 'viewport',
      viewport: 'viewport',
    })
  })
})

🏆 Benefits

... of Integrating Playwright with Wopee.io

Basic Features:

• Advanced Visual Comparison: Playwright's built-in visual comparison capabilities are enhanced by Wopee.io, providing a more comprehensive validation with pixel-perfect accuracy.
• Ignore Areas: Specify areas to ignore during comparisons by locator or coordinates, reducing false positives.
• Baseline Management: Efficiently handle baselines with bulk approval, filtering options, and the ability to flexibly tag baselines for better organization and control.
• Cross-browser Screenshots: Capture and compare screenshots across Chromium, Firefox, and WebKit for thorough cross-browser visual testing.

Advanced Features:

• Baseline Version History: Track changes over time with detailed version histories.
• Multi-Branch and Multi-Config Support: Easily manage tests across different branches and configurations.
• Improved Team Collaboration: Enhance teamwork with features designed for better collaboration and communication.
• Archiving: Keep your workspace organized with archiving capabilities for old or irrelevant tests.
• Dynamic Content Handling: Wopee.io provides tools to manage and compare dynamic content more effectively, reducing the noise in visual test results.

Additionally, users can benefit from Wopee.io's visual testing bot, which automates and streamlines the visual testing process, ensuring thorough and consistent validation without manual intervention.

Integrating Playwright with Wopee.io offers significant benefits for modern web application testing. Playwright provides a robust, efficient, and developer-friendly testing experience with advanced visual testing capabilities, while Wopee.io enhances this by adding comprehensive visual validation and management tools. This integration allows for advanced baseline management, enabling efficient handling of baselines with features like bulk approval, filtering, and flexible tagging. It also improves team collaboration with enhanced tools and supports thorough visual testing with automated comparison algorithms. Overall, combining Playwright with Wopee.io ensures more resilient test runs, faster maintenance, and higher quality web applications.

Playwright Visual Regression Testing with Wopee.io

Enhance your Playwright-based testing with Wopee.io's visual regression testing!

Integrate seamlessly to catch visual bugs early and ensure your web app works flawlessly across versions. Set up in 1 minute, and start automating your regression tests to achieve faster feedback and consistent results.

Start your Wopee.io for Playwright integration – Free Trial, and streamline your visual regression testing with minimal maintenance.

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