Chai vs Laravel Dusk comparison of testing frameworks
What are the differences between Chai and Laravel Dusk?

	Chai https://www.chaijs.com	Laravel Dusk https://laravel.com/docs/5.8/dusk
Programming language	JavaScript	PHP
Category	Unit Testing	Browser Automation
General info	Chai is a BDD / TDD assertion library for Node.js and the browser that can be paired with any JavaScript testing framework. Chai is an assertion library, similar to Node's built-in assert and makes testing easier by giving you many assertions you can run against your code. It also includes a robust Plugin architecture for extending Chai's assertions and interfaces.	Laravel Dusk is an easy-to-use browser automation and testing API. One can use Dusk to programmatically test applications, visit any website using a real Chrome browser, automate repetitive tasks, scrape information from other sites or test to make sure your app always works in the browser.
xUnit Set of frameworks originating from SUnit (Smalltalk's testing framework). They share similar structure and functionality.	N/A	N/A
Client-side Allows testing code execution on the client, such as a web browser	Yes Chai can be used in a browser environment to test front-end components and functionality	Yes It is a browser automation tool which tests front-end components and functionality
Server-side Allows testing the bahovior of a server-side code	Yes Chai is used in a Node.JS environment to test server behaviour and functionality	Yes Laravel provides a variety of tools to make it easier to test your database driven applications
Fixtures Allows defining a fixed, specific states of data (fixtures) that are test-local. This ensures specific environment for a single test	N/A	N/A
Group fixtures Allows defining a fixed, specific states of data for a group of tests (group-fixtures). This ensures specific environment for a given group of tests.	N/A	N/A
Generators Supports data generators for tests. Data generators generate input data for test. The test is then run for each input data produced in this way.	Yes By using chai-spec-generator plugin which will generate chai test specs from a JavaScript object	N/A
Licence Licence type governing the use and redistribution of the software	MIT License	MIT License
Mocks Mocks are objects that simulate the behavior of real objects. Using mocks allows testing some part of the code in isolation (with other parts mocked when needed)	Yes By using by using a third party library like chai-jest-mocks which is a chai plugin that adds assertions for jest mock functions. You can also use sinon.js	Yes Laravel provides helpers for mocking events, jobs, and facades out of the box or use Mockery or PHPUnit to create your own mocks or spies
Grouping Allows organizing tests in groups	N/A	Yes Using the 'dusk' which command accepts any argument that is normally accepted by the PHPUnit test runner, allowing you to run the tests for a given group.
Other Other useful information about the testing framework