Catch2

Test names don't need to be valid identifiers, and assertions look like normal C++ boolean expressions, making test writing intuitive and readable.

Sections provide a local way to share setup and tear-down code within tests, avoiding the need for global fixtures and simplifying test structure.

Includes benchmarking macros like BENCHMARK for performance testing, as shown in the example, though benchmarks require explicit tags to run.

Supports C++14, C++17, and later, with older versions like v2.x for C++11, ensuring compatibility with contemporary codebases.