Over the last few years, the programming landscape has changed dramatically.
Jest is a profoundly favored system for applications dependent on React. It gives an unambiguous and extremely helpful interface. This structure comes packaged for certain fascinating highlights like depiction testing and an underlying apparatus for code inclusion. There are likewise a ton of assets accessible online for JEST. The main feature of the same is compatible with Node JS, React, Angular, Vue JS, and other Babel-based projects, Standard syntax with documentation support, very fast and highly performant, and managing tests with larger objects is possible using Live Snapshots.
Jasmine is very worthwhile for front-end testing. It involves both visibilities testing as well as the responsiveness testing of UI across a plethora of devices with various resolutions. One can also predict user behavior with custom delay and set period for simulating the actual user behavior. The main consequence of this provides a small, clean, and straightforward syntax for easy testing does not require any Document Object Model (DOM) and implements support for frontend and backend tests, ease in coding as the syntax practicing is very similar to a natural language, strong documentation and to community support.
Karma is another very popular open-source productive testing environment. It allows a QA to perform tests for an application in all kinds of different environments. Karma enables the application script to be used and experienced on real browsing devices such as phones and tablets. Karma aims to provide a testing condition for developers wherein they don’t need to set up loads of configurations. Instead, they can just take the tests and get instant feedback.
Supports integrations with top CI/CD tools such as Jenkins, Travis, and Semaphore, tests on real devices and browsers are possible, provides support for headless environments like Phantom JS, and supports remote testing directly from a terminal or IDE. It is a framework for agnostic, which means it can represent tests with popular frameworks like Mocha, Jasmine. One can also record a simple adapter for a specific framework.
One can easily find performance errors on a site using the timeline trace. Although Puppeteer has been recently introduced in the testing landscape, it has already been adopted by developers in large numbers. The future for Puppeteer looks promising.