JavaScript Testing utilities for React

• UpdatedAug 12, 2024
• JavaScript

AutoFixture is an open source library for .NET designed to minimize the 'Arrange' phase of your unit tests in order to maximize maintainability. Its primary goal is to allow developers to focus on what is being tested rather than how to setup the test scenario, by making it easier to create object graphs containing test data.

• UpdatedAug 20, 2025
• C#

Verify is a snapshot testing tool that simplifies the assertion of complex data models and documents.

• UpdatedOct 7, 2025
• C#

Fluent testing library for ASP.NET Core MVC.

• UpdatedMar 4, 2025
• C#

Fluent testing framework for ASP.NET Web API 2.

• UpdatedAug 31, 2022
• C#

A multiplatform expectation library for Kotlin

• UpdatedOct 2, 2025
• Kotlin

Assertive programming for R analysis pipelines

• UpdatedApr 11, 2024
• R

A pytest plugin that allows multiple failures per test.

• UpdatedOct 7, 2025
• Python

Rust testing library

• UpdatedJan 2, 2024
• Rust

Power Assert in Elixir. Shows evaluation results each expression.

• UpdatedJan 4, 2023
• Elixir

A Go test assertion library for verifying that two representations of JSON are semantically equal

• UpdatedOct 3, 2024
• Go

Behavior-oriented, expressive, human-friendly Python assertion library for the 21st century

• UpdatedJan 21, 2021
• Python

Bringing Jest-esque Snapshot testing to C#

• UpdatedJul 11, 2024
• C#

Fluent assertion-style functions used by goconvey and gunit. Can also be used in any test or application.

• UpdatedAug 11, 2025
• Go

Fluent assertions for Python

• UpdatedApr 23, 2022
• Python

WebdriverIO Assertion Library

• UpdatedOct 6, 2025
• TypeScript

Automatic and modern error handling package for Go

• UpdatedSep 2, 2025
• Go

Lightweight Self-Documenting Design by Contract Programming and Security Hardened mode.

• UpdatedJan 26, 2022
• Nim

Fluent test assertions for Rust.

• UpdatedApr 10, 2025
• Rust

Matchers for JDK 8 Optional

• UpdatedJun 3, 2022
• Java