This is a test runner designed for Node.js. It offers precise API, process isolation, comprehensive error output, and support for new language attributes. It is perfect for testing server applications and, of course, Node.js models. However, it is not the perfect option for testing UI applications. AVA also offers a unique feature that indicates a test as ‘to do’ task. It is essential to mention that each file is tested and ran separately. Additionally, it has some other benefits, which include speed and minimalism, the capability to run tests in tandem, and straightforward test syntax. It also supports sync functions along with observables.
This test runner allows the execution of code on multiple web browsers. As a matter of fact, Karma supports every major browser, including mobile versions. According to the developers of this project, Karma offers the perfect setting where the specialists are not required to set up huge loads of configurations. Rather, they can just write code and receive immediate feedback on their tests. Karma is the perfect choice for a low level of unit testing.
This is an opinionated testing framework that needs no configuration, and according to the product information, the developers can test run their first unit within a couple of minutes. With Luna, there is no need for installing any other modules to produce code coverage details. The tests should be written in ES6 modules and run in a browser automatically. This tool supports concurrency, which means the test groups can be run simultaneously. It doesn’t allow trans-piling, and this means it won’t work with TypeScript or CoffeeScript. It’s essential to mention that Luna doesn’t support older browsers.
This is a nonstop testing framework designed for Angular and AngularJS. Here, testing is done against the application in a browser, and it interacts with the applications in the same way as the users usually do. It has an automatic waiting ability that allows it to carry out the next step of a test as soon as the webpage is done with the pending tests. It is essential to mention that Protractor was developed on WebdriverJS.