A C library for writing tests using the Test Anything Protocol (TAP) output format.
libtap is a C library that enables developers to write tests using the Test Anything Protocol (TAP) output format. It provides a set of macros and functions for creating readable, machine-parseable test output, making it easier to integrate C testing into CI/CD pipelines and development workflows. The library is based on the Test::More Perl module and brings similar testing capabilities to C programs.
C developers who need a lightweight, standardized testing framework for their projects, particularly those who want TAP-compatible output for integration with existing test harnesses.
Developers choose libtap because it implements the widely-supported TAP standard, provides automatic diagnostic information, and offers a comprehensive set of testing macros without the overhead of larger testing frameworks. Its simplicity and focus on TAP compliance make it ideal for projects that need reliable, parseable test output.
Write tests in C
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Produces standard TAP output that integrates seamlessly with CI/CD pipelines and any TAP consumer, as highlighted in the README's emphasis on machine-parseable results.
Macros like ok() automatically include file and line numbers in failure messages, aiding quick debugging, as shown in the synopsis where failed tests print precise location details.
Offers a wide range of assertion functions such as cmp_ok, cmp_mem, and dies_ok, based on Perl's Test::More, providing versatile testing options for various scenarios.
Easy installation on Unix with make commands and minimal setup, making it accessible for straightforward testing needs without the overhead of larger frameworks.
Key features like like() and dies_ok() are skipped on Windows, reducing its utility for cross-platform development, as admitted in the README's notes on platform-specific limitations.
The library focuses on assertions and output but lacks built-in tools for mocking dependencies, which may necessitate additional libraries for isolating test units in complex projects.
Heavy use of macros can complicate debugging and might be less intuitive for developers unfamiliar with C macro expansions, potentially leading to cryptic errors during test development.