log( 'CHILD: url received from parent process', url) Ĭonst browser = await puppeteer. The code snippet below is a simple example of running parallel downloads with Puppeteer.Ĭonst downloadPath = path. BrowserStack provides access to 3000+ real devices for testing, so that you can perform Puppeteer Cross Browser testing under real user conditions and get better accuracy in test results. 💡 If you are not familiar with how child process work in Node I highly encourage you to give this article a read. We can combine the child process module with our Puppeteer script and download files in parallel. Child process is how Node.js handles parallel programming. Based on project statistics from the GitHub repository for the npm package puppeteer-cluster-connect, we found that it has been starred 3 times.

We can fork multiple child_proces in Node. defaults npm install -save-dev puppeteer jest install Puppeteer and. Our CPU cores can run multiple processes at the same time. Puppeteer is a free and Open Source test automation tool for web browsers like. 💡 Learn more about the single threaded architecture of node here Therefore if we have to download 10 files each 1 gigabyte in size and each requiring about 3 mins to download then with a single process we will have to wait for 10 x 3 = 30 minutes for the task to finish. It can only execute one process at a time. You see Node.js in its core is a single-threaded system. However, if you have to download multiple large files things start to get complicated. WebdriverIO is an Automation Test Framework for Node.js. pytest-pyppeteer is a Python framework to use with Puppeteer. chromedp is a Golang framework to use with Puppeteer. In this next part, we will dive deep into some of the advanced concepts. Jest-Puppeteer allows you to run tests with Jest on browsers controlled with Puppeteer.

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