Using Puppeteer

UI testing is a technique used to identify issues with graphical UIs (GUIs), particularly in web applications. Although Node.js is primarily a server-side platform, it is frequently used to develop web applications, where UI testing plays a critical role.

For example, if you have an application containing an HTML form, you could use UI testing to validate that the HTML form contains the correct set of input fields. UI testing can also validate interactions with the interface – such as simulating button clicks or hyperlink activations.

Puppeteer is an open source library that provides a headless Chromium instance, which can be programmatically interacted with to automate UI tests. It is particularly useful for Node.js environments because of its native support and ease of integration.

n the recipe, we will use Puppeteer (https://pptr.dev/) to perform UI testing on the http://example.com/ website. However, other popular alternatives for UI testing in Node...