Minitest vs xUnit.net comparison of testing frameworks
What are the differences between Minitest and xUnit.net?

Minitest

https://github.com/seattlerb/minitest

xUnit.net

https://xunit.net/
Programming language

Ruby

.NET

Category

Unit Testing

Unit Testing

General info

Complete suite of testing facilities

Minitest is small, fast, and it aims to make tests clean and readable. It supports test-driven development (TDD), behavior-driven development (BDD), mocking, and benchmarking.

xUnit.net is aUnit testing framework for C# and .NET

xUnit.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. xUnit.net and works with ReSharper, CodeRush, TestDriven.NET and Xamarin. It is part of the .NET Foundation,
xUnit
Set of frameworks originating from SUnit (Smalltalk's testing framework). They share similar structure and functionality.

Yes

MiniTest is an xUnit style framework in that is has assertion functions in the style of xUnit/TDD

Yes

xUnit.net is part of the xUnit family of frameworks
Client-side
Allows testing code execution on the client, such as a web browser

No

Yes

You can test various front-end components independently since it is a Unit testing framework
Server-side
Allows testing the bahovior of a server-side code

Yes

You can test various back-end components

Yes

You can test various back-end components independently since it is a Unit testing framework
Fixtures
Allows defining a fixed, specific states of data (fixtures) that are test-local. This ensures specific environment for a single test

Yes

Minitest supports test fixture functions

Yes

It contains class fixtures which are setup once pertest class
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

Minitest has group fixtures

Yes

xUnit.net contains collection fixtures which allow you to share context among many tests
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.

Licence
Licence type governing the use and redistribution of the software

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

Mocking is available through the Minitest::Mock class which is a simple and clean mock object framework

Grouping
Allows organizing tests in groups

Yes

Allows grouping by nested Ruby classes. RSpec-like "context" method is available for spec syntax through the minitest-spec-context extension gem

Other
Other useful information about the testing framework