Knapsack Pro vs Selenium comparison of testing frameworks
What are the differences between and Selenium?

Programming language




Unit Testing

Web Automation

General info is aUnit testing framework for C# and .NET is a free, open source, community-focused unit testing tool for the .NET Framework. It is used to test C#, F#, VB.NET and other .NET languages. and works with ReSharper, CodeRush, TestDriven.NET and Xamarin. It is part of the .NET Foundation,

Selenium is an open source tool used to test web applications

Selenium is a powerful testing tool which can send standard Python commands to different browsers, despite variations in browser design. It also provides extensions to emulate user interaction with browsers, a distribution server for scaling browser allocation, and the infrastructure for implementations of the W3C WebDriver specification that lets you write interchangeable code for all major web browsers
Set of frameworks originating from SUnit (Smalltalk's testing framework). They share similar structure and functionality.

Yes is part of the xUnit family of frameworks


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


You can test various front-end components independently since it is a Unit testing framework


It is primarily a browser automation tool which tests front-end components and functionality
Allows testing the bahovior of a server-side code


You can test various back-end components independently since it is a Unit testing framework


It can perform Unit tests and can test various components and behaviours in the backend using a BDD or TDD approach
Allows defining a fixed, specific states of data (fixtures) that are test-local. This ensures specific environment for a single test


It contains class fixtures which are setup once pertest class


By writing your Selenium WebDriver tests in PyTest, this gives you access to Pytest's powerful fixture model
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 contains collection fixtures which allow you to share context among many tests


One can group fixtures if accessing Pytest's fixture model
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.


By using a library such as Faker or Fake-factory
Licence type governing the use and redistribution of the software

Apache License 2.0

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)


It includes support for mocking
Allows organizing tests in groups


By using the TestNG feature with which we can create groups and maintain them easily
Other useful information about the testing framework