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

	Laravel Dusk https://laravel.com/docs/5.8/dusk	Chai https://www.chaijs.com
Programming language	PHP	JavaScript
Category	Browser Automation	Unit Testing
General info	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.	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.
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 It is a browser automation tool which tests front-end components and functionality	Yes Chai can be used in a browser environment to test front-end components and functionality
Server-side Allows testing the bahovior of a server-side code	Yes Laravel provides a variety of tools to make it easier to test your database driven applications	Yes Chai is used in a Node.JS environment to test server behaviour and functionality
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.	N/A	Yes By using chai-spec-generator plugin which will generate chai test specs from a JavaScript object
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 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	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
Grouping Allows organizing tests in groups	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.	N/A
Other Other useful information about the testing framework