Catch2

A modern, C++-native, test framework for unit-tests, TDD and BDD - using C++14, C++17 and later (C++11 support is in v2.x branch, and C++03 on the Catch1.x branch)

209 articles 21k View on GitHub ↗
209 articles
How to Implement Test Sharding for Parallel Execution in Catch2

Learn how to implement test sharding in Catch2 for faster parallel test execution. Discover the `--shard-count` and `--shard-index` CLI flags for efficient test distribution.

how-to-guide
Jul 30, 2026
How to Use a Custom Main Function with Catch2: Four Implementation Patterns

Master Catch2 custom main functions. Learn four implementation patterns to control test execution instead of linking Catch2Main. Boost your testing workflow today.

how-to-guide
Jul 30, 2026
How to Configure Catch2 to Abort Tests on First Failure

Learn how to configure Catch2 to abort tests on first failure using the -a command-line option. Stop your test runs instantly after the first failed assertion for faster debugging.

how-to-guide
Jul 30, 2026
How to Use Wildcards in Tag Filtering with Catch2: A Complete Guide

Discover how to effectively filter tests in Catch2. Learn about wildcard usage for test names and the exact matching required for tag filtering.

how-to-guide
Jul 30, 2026
How to Configure Output Coloring and Formatting in Catch2

Learn to configure Catch2 output coloring and formatting using compile-time macros and runtime flags for custom terminal output and improved CI integration. Master your test results display.

how-to-guide
Jul 30, 2026
How to Use Wildcards in Catch2 Test Specifications

Learn to use wildcards in Catch2 test specifications with the asterisk (*) character. Filter tests flexibly by matching any part of a test name. Boost your testing efficiency today.

how-to-guide
Jul 30, 2026
How to Implement Custom Exception Translators in Catch2

Learn how to implement custom exception translators in Catch2 using the CATCH_TRANSLATE_EXCEPTION macro. Convert C++ exceptions to readable strings for better test output.

how-to-guide
Jul 30, 2026
What's New in Catch2 v3 Compared to v2: Key Changes and Migration Guide

Explore Catch2 v3! Discover key changes from v2 including static library builds C++14 support and faster compiles. Get your migration guide now.

migration-guide
Jul 30, 2026
How to Create Custom Test Fixtures in Catch2: A Complete Guide

Master custom test fixtures in Catch2. Learn to use macros for per-section, direct member function, and persistent state fixtures for robust C++ testing.

how-to-guide
Jul 30, 2026
How to Use Tags and Test Filtering in Catch2: Complete Guide

Master Catch2 test filtering and tagging. Organize and execute specific tests with command-line expressions and logical operators for efficient C++ testing.

how-to-guide
Jul 30, 2026
How Catch2 Test Case Registration Works Internally: Static Initialization and Registry Architecture

Discover how Catch2 test case registration works internally. Learn about static initialization and the registry architecture through the TEST_CASE macro.

internals
Jul 30, 2026
How Auto-Registration Works with TEST_CASE Macros in Catch2: Inside the AutoReg Mechanism

Discover how Catch2 automatically registers TEST_CASE macros at startup. Learn about the AutoReg mechanism and global initialization phase before main executes.

internals
Jul 29, 2026
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