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Jest vs Unitils comparison of testing frameworks
What are the differences between Jest and Unitils?


Programming language




Unit Testing

Unit Testing, Intergration Testing

General info

A Unit Testing framework focused on simplicity

This is a Unit test framwork especially designed for the React.JS, Babel, TypeScript, Node, React, Angular and Vue projects. It usually worked with Enzyme(Integration testing)

Unitils is an open source library whose goal is to make unit and integration testing easy and maintainable.

Unitils is divided into modules, each of them providing support for a certain aspect of your unit and integration tests. For example if you need mocking for your tests, just include unitils-mock as a dependency, If you would also want to load DbUnit data sets, just include unitils-dbunit
Set of frameworks originating from SUnit (Smalltalk's testing framework). They share similar structure and functionality.



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


You can easily test methods, properties, UI element actions and other front-end functionalities


You can perform unit tests on various components and functionality that make up the front-end
Allows testing the bahovior of a server-side code


Back-end server behaviour also can be tested with Jest much in the same way as the front-end tests.


Unitils provides support for testing the back-end through modules such as DbUnit which specifically tests your database, i.e connections setup and so on
Allows defining a fixed, specific states of data (fixtures) that are test-local. This ensures specific environment for a single test


Fixtures are supported, Jest has many helper functions such as: BeforeEach and afterEach If you have some work you need to do repeatedly for many tests, beforeAll and afterAll if you only need to do setup once, at the beginning of a file.

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.


Jest supports group fixtures

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.


Licence type governing the use and redistribution of the software

MIT License

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)

Jest uses a custom resolver for imports in your tests making it simple to mock any object outside of your test’s scope. You can use mocked imports with the rich Mock Functions API to spy on function calls with readable test syntax.

Allows organizing tests in groups


You can declare as many test suites as you want. Grouping of tests together is done using a describe block

Other useful information about the testing framework