Overview

Catch2 is a modern, C++-native test framework designed for unit tests, TDD (Test-Driven Development), and BDD (Behavior-Driven Development). It embraces C++14, C++17, and later standards, offering a clean and intuitive syntax that feels natural within C++ code. For developers working with older C++ standards, support for C++11 is available in the v2.x branch, and C++03 in the Catch1.x branch.

Key Features

• Intuitive Syntax: Assertions resemble standard C++ boolean expressions, and test names don't require valid identifiers.
• Sections for Code Sharing: Sections provide a localized and structured way to share setup and teardown code within tests.
• BDD and TDD Support: Integrated macros facilitate both Behavior-Driven Development and Test-Driven Development methodologies.
• Micro-benchmarking: Built-in capabilities for measuring the performance of code snippets.
• Modern C++: Leverages modern C++ features for enhanced expressiveness and efficiency.
• Single-Header Option (v2.x and earlier): While v3 has transitioned to a multi-header approach for better library management, previous versions offered a convenient single-header distribution.

Typical Use Cases

• Unit Testing: Write robust and maintainable unit tests for individual components of C++ applications.
• Test-Driven Development (TDD): Develop code iteratively by writing tests before implementing the functionality.
• Behavior-Driven Development (BDD): Define and test software behavior from the perspective of its users or stakeholders.
• Performance Profiling: Utilize integrated micro-benchmarking to identify and optimize performance bottlenecks.
• Modern C++ Projects: Integrate seamlessly into projects that utilize C++14, C++17, and newer standards.