workshopsoft/ludic
2
0
Fork 0
Code Issues Pull requests Projects Releases 26 Packages Wiki Activity Actions

feat(testing): line coverage via --coverage + bin/x test --coverage (#45)
All checks were successful
bootstrap / cfree-fixpoint (push) Successful in 17s
Details
ci / build-and-test (push) Successful in 1m13s
Details
commit-lint / conventional-commits (push) Successful in 3s
Details
docs / build-and-deploy (push) Successful in 19s
Details

Browse source 
Instrument each emitted statement with a per-source-line hit counter, gated
behind a new --coverage flag (default off) so ordinary builds — and the
compiler's own self-compile — stay byte-identical and the C-free bootstrap
fixpoint is untouched. A static line table plus a parallel hit-counter array
are dumped at exit through an atexit hook to $LUDIC_COVERAGE (default
ludic.cov) as a `FILE <name>` header and `<line> <hits>` rows.

bin/x test --coverage compiles the test specs with instrumentation, runs them
into per-file dumps, and aggregates a clean per-file line-coverage report that
names the unreached lines. Adds examples/library/coverage.ludic (a spec whose
tests deliberately miss one branch) and docs. Closes the last open acceptance
item of the testing framework (#12).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-08-31 14:51:14 +03:00
parent c7c8e2779c
commit 498593311f
11 changed files with 15317 additions and 14622 deletions
Download patch file Download diff file Expand all files Collapse all files

3
changes/coverage.md Normal file
View file

@ -0,0 +1,3 @@
bump: minor
type: feat
Line coverage for the testing framework — compile with `--coverage` and the compiler instruments each statement with a per-source-line hit counter, dumped at exit (via an `atexit` hook) to the file named by `$LUDIC_COVERAGE` (default `ludic.cov`) as a `FILE <name>` header plus one `<line> <hits>` row per instrumented line. The instrumentation is flag-gated and additive, so an ordinary build — and the compiler's own self-compile — stays byte-identical and the C-free bootstrap fixpoint is untouched. `bin/x test --coverage` compiles the test specs this way, runs them, and aggregates the dumps into a per-file line-coverage report that names the unreached lines. Closes the last open acceptance item of the testing framework (#12).