Web testing is a crucial part of software development, ensuring that web applications work as expected in different browsers and devices. OpenClaw Hub provides a powerful tool for browser automation that can help developers and testers streamline their web testing processes. In this tutorial, we will explore how to use OpenClaw for browser automation with a focus on web testing. ## Prerequisites Before we begin, make sure you have the following: 1. **Basic understanding of JavaScript**: This tutorial will involve writing JavaScript code. 2. **Node.js installed**: Ensure you have Node.js (version 12 or higher) installed on your machine. You can download it from [nodejs.org](https://nodejs.org/). 3. **OpenClaw Hub account**: Sign up for an account at [OpenClaw](https://stormap.ai). 4. **Basic knowledge of using the command line**: You'll need to navigate directories and run commands. ## Step-by-Step Instructions ### Step 1: Setting Up Your Environment 1. **Create a new directory for your project**: ```bash mkdir openclaw-web-testing cd openclaw-web-testing ``` 2. **Initialize a new Node.js project**: ```bash npm init -y ``` 3. **Install the OpenClaw package**: ```bash npm install openclaw ``` ### Step 2: Configuring OpenClaw 1. **Create a configuration file**: In your project directory, create a file named `openclaw.config.js`: ```javascript module.exports = { apiKey: 'YOUR_API_KEY', // Replace with your actual OpenClaw API key baseUrl: 'https://api.openclaw.ai', browser: 'chrome', // You can specify 'firefox' or 'safari' as well }; ``` 2. **Replace `YOUR_API_KEY`** with your actual API key obtained from your OpenClaw account. ### Step 3: Writing Your First Test Script 1. **Create a new file for your test script**: Create a file named `test.js` in your project directory. 2. **Write a simple test script** to navigate to a webpage and verify its title: ```javascript const OpenClaw = require('openclaw'); const config = require('./openclaw.config'); async function runTest() { const client = new OpenClaw.Client(config.apiKey, config.baseUrl); const session = await client.startSession({ browser: config.browser }); try { const page = await session.newPage(); await page.goto('https://example.com'); const title = await page.title(); if (title === 'Example Domain') { console.log('Test passed: Title is correct.'); } else { console.log('Test failed: Title is incorrect.'); } } catch (error) { console.error('Test failed with error:', error); } finally { await session.close(); } } runTest(); ``` ### Step 4: Running Your Test 1. **Run your test script** using Node.js: ```bash node test.js ``` 2. **Check the output**: You should see either "Test passed: Title is correct." or "Test failed: Title is incorrect." based on the title of the webpage. ### Step 5: Adding More Tests 1. **Add additional tests** to verify other aspects of your web application. For example, you can check for specific elements on the page: ```javascript const element = await page.$('h1'); // Change the selector to match your webpage if (element) { console.log('Test passed: Element is present.'); } else { console.log('Test failed: Element is not found.'); } ``` 2. **Encapsulate tests** in functions to make your code more modular: ```javascript async function checkElement(selector) { const element = await page.$(selector); return !!element; } const isHeaderPresent = await checkElement('h1'); if (isHeaderPresent) { console.log('Test passed: Header is present.'); } else { console.log('Test failed: Header is not present.'); } ``` ### Step 6: Handling Asynchronous Operations 1. **Understand how promises work** in JavaScript, as many OpenClaw methods return promises. Use the `async/await` syntax for better readability, as seen in the previous steps. 2. **Implement error handling** to manage potential issues during testing. Include `try/catch` blocks and provide meaningful error messages. ### Step 7: Automating Your Tests 1. **Use a testing framework** like Mocha or Jest to organize and automate your tests. Install Mocha: ```bash npm install --save-dev mocha ``` 2. **Create a `test` directory** and move your test script there. Update the script to follow Mocha's test structure: ```javascript const OpenClaw = require('openclaw'); const config = require('../openclaw.config'); describe('Web Testing with OpenClaw', function() { let session; let page; before(async function() { const client = new OpenClaw.Client(config.apiKey, config.baseUrl); session = await client.startSession({ browser: config.browser }); page = await session.newPage(); }); after(async function() { await session.close(); }); it('should have the correct title', async function() { await page.goto('https://example.com'); const title = await page.title(); if (title !== 'Example Domain') throw new Error('Title is incorrect'); }); it('should have the header element', async function() { const element = await page.$('h1'); if (!element) throw new Error('Header is not found'); }); }); ``` 3. **Run your tests** using Mocha: ```bash npx mocha test ``` ## Troubleshooting Tips - **Make sure your API key is correct** and has the necessary permissions. - **Check for network issues** if the script fails to connect to OpenClaw. - **Ensure the element selectors are accurate**; use browser developer tools to validate the selectors. - **Debugging**: Use `console.log()` statements to output values and understand where your code might be failing. ## Next Steps Now that you've set up browser automation with OpenClaw for web testing, consider exploring these related topics: - **Advanced Testing Techniques**: Learn about more complex scenarios, such as form submissions and user interactions. - **Continuous Integration (CI)**: Integrate your tests with CI/CD pipelines to automate testing processes. - **Cross-Browser Testing**: Expand your tests to ensure compatibility across different browsers and devices. By mastering these topics, you'll be well on your way to becoming an expert in web testing with OpenClaw! Happy coding!