# nunit/nunit

NUnit Framework

Repository: https://github.com/nunit/nunit
Canonical: https://ross.abutalabs.com/products/nunit
Homepage: https://nunit.org/
Language: C#
License: MIT
License Family: permissive
Topics: nunit-framework, tdd, testing, test-framework, test-driven-development, dotnet, c-sharp, nunit, hacktoberfest
Last push: 2026-08-26T11:32:24+00:00

## Health v2 (maintenance only)
Score: 94/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 84, longevity 100
- inputs: {"age_days": 4702, "days_push": 7, "days_rel": 106, "gap_med": 16, "n_releases_24m": 8}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2622, forks 766 (observed 2026-08-28T04:07:05.078238+00:00)

## What it is
NUnit is a unit-testing framework for all .NET languages, supporting everything from TDD unit tests to full system and integration testing. Version 5 modernizes the long-established NUnit 3/4 framework with the latest .NET and C# features.

## Use cases
- write unit tests for C# code
- do test-driven development in .NET
- run integration and system tests for .NET apps
- assert expected behavior in .NET test suites
- extend a test framework with custom assertions

## When to choose
- you are testing .NET/C# code and want a mature, widely adopted framework
- you need flexible assertion styles and extensibility
- you want cross-platform testing on Windows, macOS, and Linux

## When to avoid
- you are not working in the .NET ecosystem
- you need a JavaScript, Python, or Java test framework

## Facets
- artifact type: library
- maturity: stable
- function: testing
- domain: testing, developer-tools
- platform: dotnet, cross-platform, windows
- tags: unit-testing, tdd, c-sharp, test-framework, nuget, macos, linux

## Member repositories
- nunit/nunit (main) score 94

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:05.078238+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:20:02.943541+00:00, confidence not recorded.
  - readme: https://github.com/nunit/nunit (fetched 2026-08-28T04:07:05.078238+00:00, sha 101edc5ac648)
  - homepage: https://nunit.org/ (fetched 2026-08-29T10:03:00.949111+00:00, sha f5ada9c5b765)
  - site_page: https://docs.nunit.org (fetched 2026-08-29T10:03:00.958198+00:00, sha c407e27a6229)
- Data as of 2026-08-30T08:39:29.467469+00:00.