Mock external dependencies in C tests using MOCKABLE weak symbol wrappers.
npx skills add https://github.com/multicam/ikigai-rev --skill mocking-multicam
Please help me install this Agent Skill. Skill: mocking Source: https://github.com/multicam/ikigai-rev/tree/main/.claude-i/library/mocking Command: npx skills add https://github.com/multicam/ikigai-rev --skill mocking-multicam
MOCKABLE wrappers enable zero-overhead mocking for external dependencies in tests, allowing tests to run without touching real libraries and system calls, while keeping production code clean.
Include the wrapper.h in tests and override the weak symbols in your test files to simulate failures or specific behaviors.
High-intent search queries and answers about installing and using this skill.
You can mock external dependencies in C unit tests by declaring functions with a MOCKABLE macro and overriding the weak symbols in your test files, keeping production code untouched.
Weak symbol mocking works by defining wrapper functions that tests override at link time, allowing you to replace runtime behavior of C libraries without modifying the original source code.
Yes, you can simulate failure modes by overriding the provided POSIX, stdio, C standard library, and libcurl wrappers in your test files to exercise edge cases reliably.
You need a C compiler with weak symbol support and a MOCKABLE macro declaration for each target function, plus per-function wrappers to be overridden in your test files.
Yes, zero-overhead mocking works with talloc and yyjson by including the provided wrapper headers in tests and overriding the weak symbols to simulate specific behaviors.
You should avoid weak symbol mocking when your compiler lacks weak symbol support or when production code cannot accommodate the required MOCKABLE macro declarations.
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