boost-ext/ut

Health v2 · maintenance only

Adoption not part of the score

1445 stars · 133 forks observed · 2026-10-09

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

UT (μt) is a C++20 micro unit testing framework distributed as a single header or C++20 module. It provides a macro-free, DSL-style API for writing tests with automatic registration, expressive assertions, and TDD/BDD support.

Use cases

• write unit tests for C++20 code
• practice test-driven development in C++
• write BDD-style tests without macros
• run parameterized and parallel test suites
• integrate test output with CI systems
• replace assert-based testing with named, self-describing tests

When to choose

• your project targets C++20 and you want a lightweight, macro-free testing framework
• you want a single-header dependency with fast compile times
• you need expressive assertions that show why a test failed
• you want TDD/BDD workflows with automatic test registration

When to avoid

• your codebase must compile with pre-C++20 compilers
• you need an ecosystem with extensive matchers, fixtures, and mocking built in
• your team is already invested in GoogleTest or Catch2 conventions

Facets

library · maturity active

testing e2e-testing benchmarking testing developer-tools cpp cross-platform windows unit-testing tdd bdd cpp20 single-header macro-free header-only linux macos

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