# AwesomeAssertions/AwesomeAssertions

A fork of FluentAssertions controlled by the community.

Repository: https://github.com/AwesomeAssertions/AwesomeAssertions
Canonical: https://ross.abutalabs.com/products/awesomeassertions
Homepage: http://awesomeassertions.org/
Language: C#
License: Apache-2.0
License Family: permissive
Topics: assertions, fluentassertions, unit-testing
Last push: 2026-09-02T19:37:23+00:00

## Health v2 (maintenance only)
Score: 88/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 100, release rhythm 98, longevity 42
- inputs: {"age_days": 596, "days_push": 0, "days_rel": 13, "gap_med": 21, "n_releases_24m": 18}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1123, forks 58 (observed 2026-09-03T02:15:05.062938+00:00)

## What it is
AwesomeAssertions is a community-controlled fork of FluentAssertions, providing an extensive set of fluent extension methods for writing TDD/BDD-style unit test assertions in .NET. It was created in response to FluentAssertions' licensing changes and remains Apache 2.0 licensed.

## Use cases
- write fluent assertions in .NET unit tests
- replace FluentAssertions after its license change
- get descriptive failure messages in unit tests
- write TDD or BDD-style tests in C#
- assert on collections, strings, and exceptions fluently
- keep Apache 2.0 licensed test dependencies

## When to choose
- you use .NET (Standard 2.0+, Framework 4.7+, or .NET 6+) with MSTest, xUnit, NUnit, MSpec, or TUnit
- you want FluentAssertions-style syntax under a permissive Apache 2.0 license
- you want readable, intention-revealing assertions with detailed failure messages

## When to avoid
- you are not writing .NET tests
- you are happy with FluentAssertions' current licensing
- you need a test framework itself rather than an assertion library

## Facets
- artifact type: library
- maturity: active
- function: testing
- domain: testing, developer-tools
- platform: dotnet, cross-platform
- tags: assertions, fluent-api, unit-testing, tdd, bdd, fluentassertions-fork, community-fork

## Member repositories
- AwesomeAssertions/AwesomeAssertions (main) score 88

## Provenance
- Observed fields: from GitHub, fetched 2026-09-03T02:15:05.062938+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 2026-08-30T06:41:03.359183+00:00, confidence not recorded.
  - readme: https://github.com/AwesomeAssertions/AwesomeAssertions (fetched 2026-09-03T02:15:05.062938+00:00, sha 465062bab07b)
  - homepage: http://awesomeassertions.org/ (fetched 2026-08-29T12:44:48.938273+00:00, sha 26c88f1e8be6)
  - site_page: https://awesomeassertions.org/about (fetched 2026-08-29T12:44:48.947775+00:00, sha 9a1bb2e82534)
  - site_page: https://awesomeassertions.org/introduction (fetched 2026-08-29T12:44:48.949977+00:00, sha 81d5f9e2b213)
  - site_page: https://awesomeassertions.org/releases (fetched 2026-08-29T12:44:48.952089+00:00, sha dcd41c2fe391)
- Data as of 2026-08-30T08:39:29.467469+00:00.