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

Peridot

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

Wallaby

https://github.com/elixir-wallaby/wallaby
Programming language

PHP

Elixir

Category

Unit Testing

Intergration Testing, Browser Automation

General info

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

Library for end-to-end intergration testing for Elixir apps

Wallaby supports concurrent feature testing (i.e multiple tests can run concurrently) as well as browser management
xUnit
Set of frameworks originating from SUnit (Smalltalk's testing framework). They share similar structure and functionality.

No

No

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

Yes

Front-end components can be tested with Peridot

Yes

It works well for automated E2E testing; Wallaby also has an experimental Chrome Driver that works well
Server-side
Allows testing the bahovior of a server-side code

Yes

Back-end componets and behaviours can be tested as small units

N/A
Fixtures
Allows defining a fixed, specific states of data (fixtures) that are test-local. This ensures specific environment for a single test

Yes

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

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.

Yes

There are methods to create group fixtures in Peridot

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

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)

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

Yes

Available through third party libraries like Mock and Mockery
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.

N/A

Other
Other useful information about the testing framework