Setting Up Playwright in VS Code

Setting up Playwright in Visual Studio Code (VS Code) is straightforward and can enhance your end-to-end testing workflow. This guide will walk you through the installation and initial setup of Playwright in VS Code, helping you get started with writing and running tests.

Prerequisites

Before we dive into the setup, make sure you have the following installed on your system:

• Node.js (version 12 or higher)

• Visual Studio Code

Step 1: Create a New Project

First, create a new directory for your project and navigate into it using the terminal.

mkdir playwright-demo
cd playwright-demo

Step 2: Initialize a Node.js Project

Initialize a new Node.js project by running the following command. This will create a package.json file in your project directory.

npm init -y

Step 3: Install Playwright

Next, install Playwright and its dependencies by running the following command:

npm install --save-dev @playwright/test

Step 4: Install VS Code Extensions

To improve your development experience, install the following VS Code extensions:

• ESLint: Ensures your code follows best practices and avoids common errors.

• Prettier: Helps in maintaining consistent code formatting.

• Playwright Test for VS Code: Provides support for running and debugging Playwright tests within VS Code.

You can install these extensions directly from the Extensions view in VS Code.

Step 5: Configure Playwright

Playwright requires some initial configuration to set up the testing environment. Run the following command to generate the initial configuration files:

npx playwright install

This command will create a playwright.config.js file and install the necessary browser binaries.

Step 6: Create Your First Test

Create a new directory named tests in your project root. Inside this directory, create a new file named example.spec.js and add the following code:

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

test('basic test', async ({ page }) => {
  await page.goto('https://example.com');
  const title = await page.title();
  expect(title).toBe('Example Domain');
});

This simple test navigates to example.com and checks if the page title is "Example Domain".

Step 7: Run Your Tests

To run your tests, open the terminal in VS Code and use the following command:

npx playwright test

You should see output indicating that the test ran successfully.

Step 8: Debugging Tests in VS Code

To debug your tests, you can use the built-in debugger in VS Code. Open the example.spec.js file, click on the gutter next to the line numbers to set breakpoints, and then run the debugger.

In the launch.json file in your .vscode directory, add the following configuration to enable Playwright debugging:

{
  "version": "0.2.0",
  "configurations": [
    {
      "name": "Debug Playwright Tests",
      "type": "node",
      "request": "launch",
      "program": "${workspaceFolder}/node_modules/@playwright/test/lib/test/cli.js",
      "args": ["${workspaceFolder}/tests"],
      "console": "integratedTerminal",
      "internalConsoleOptions": "openOnSessionStart",
      "skipFiles": ["<node_internals>/**"]
    }
  ]
}

Now, you can run the debugger by selecting the "Debug Playwright Tests" configuration and hitting the run button.

Conclusion

Congratulations! You have successfully set up Playwright in VS Code and run your first test. This setup will help you streamline your end-to-end testing workflow, making it easier to write, run, and debug tests.

Happy testing!

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