Tests

Run everything from the repository root:

make -C tests

This builds project00 and project01 with -Wall -Werror, then runs:

• unit_tests.c: checks individual functions of project01: validation (row sums, absorbing states), fix_ctmc, discover_lambda, the uniformised DTMC (I + Q/lambda), Q' = Q + lambda*I, Power and VMM on the Belfast model, float drift under repeated squaring, the exponential generator, and the CTMC race (P(j wins) = q_ij/|q_ii|).
• model_tests.sh: runs the markov binary and the challenges on every model in ../models, comparing results against the exact steady states in expected.txt. Periodic chains must report non-convergence, and invalid matrices must be rejected.

Simulations are random, so their tolerances are 1–2%.

Run the tests before every commit

Once per clone:

git config core.hooksPath .githooks

From then on, git commit runs the tests and aborts if any fail. In an emergency, git commit --no-verify skips them.

GitHub Actions (.github/workflows/tests.yml) runs the same tests on every push and pull request.