assertions

pandera

+11

A light-weight, flexible, and expressive statistical data testing library

karate

+9

Test Automation Made Simple

testify

+9

A toolkit with common assertions and mocks that plays nicely with the standard library

supertest

+5

🕷 Super-agent driven library for testing node.js HTTP servers using a fluent API. Maintained for @forwardemail, @ladjs, @spamscanner, @breejs, @cabinjs, and @lassjs.

pester/Pester

+4

Pester is the ubiquitous test and mock framework for PowerShell.

AwesomeAssertions

+3

A fork of FluentAssertions controlled by the community.

assertj

+2

Fluent testing assertions for Java and the JVM

AutoFixture

+2

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.

fluentassertions

+1

A very extensive set of extension methods that allow you to more naturally specify the expected outcome of a TDD or BDD-style unit tests. Targets .NET Framework 4.7, as well as .NET Core 2.1, .NET Core 3.0, .NET 6, .NET Standard 2.0 and 2.1. Supports the unit test frameworks MSTest2, NUnit3, XUnit2, MSpec, and NSpec3.