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Wallaby.js vs Peridot comparison of testing frameworks
What are the differences between Wallaby.js and Peridot?

Wallaby.js

https://wallabyjs.com/

Peridot

http://peridot-php.github.io/
Programming language

JavaScript

PHP

Category

Unit Testing

Unit Testing

General info

Wallaby.js is an integrated continuous testing tool for JavaScript.

Wallaby.js runs your tests immediately as you change your code (you don’t even have to save the file) and reports code coverage and other results directly to your code editor. Its also uses various techniques such as dependency analysis to only execute tests affected by your code changes and parallel test execution to ensure your tests run as fast as possible.

Peridot is a lightweight, extensible testing framework for PHP

It features an event-driven architecture that allows testers to easily customize the framework via plugins and reporters, and uses the 'describe-it', syntax making the testing language clear and readable
xUnit
Set of frameworks originating from SUnit (Smalltalk's testing framework). They share similar structure and functionality.

N/A

No

Client-side
Allows testing code execution on the client, such as a web browser

Yes

Wallaby.js can test front-end components and functionality

Yes

Front-end components can be tested with Peridot
Server-side
Allows testing the bahovior of a server-side code

Yes

Wallaby.js can test server behaviour and functionality

Yes

Back-end componets and behaviours can be tested as small units
Fixtures
Allows defining a fixed, specific states of data (fixtures) that are test-local. This ensures specific environment for a single test

N/A

Yes

Peridot has several methods that allow one to create and define fixtures
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

Yes

There are methods to create group fixtures in Peridot
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

N/A

Licence
Licence type governing the use and redistribution of the software

N/A

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)

By use of a third party library Jest works well with wallaby

Peridot does not include mocking out of the box but there are some great tools like 'Mockery' and 'Prophecy' which Peridot intergrates very well with
Grouping
Allows organizing tests in groups

Yes

By use of describe and context blocks and it has a Runner which is responsible for running a given Suite.
Other
Other useful information about the testing framework