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| author | Craig Jennings <c@cjennings.net> | 2026-06-21 03:19:08 -0400 |
|---|---|---|
| committer | Craig Jennings <c@cjennings.net> | 2026-06-21 03:19:08 -0400 |
| commit | a249e415c7199e3d4698f1956687fa351296a357 (patch) | |
| tree | bdc9efadba60e08a43a5f687110fe12651172525 /tests/test-video-audio-recording-check-ffmpeg.el | |
| parent | a8571effadacd6f94291bfd57b7e58900a2e5816 (diff) | |
| download | dotemacs-a249e415c7199e3d4698f1956687fa351296a357.tar.gz dotemacs-a249e415c7199e3d4698f1956687fa351296a357.zip | |
test: make subr mocks variadic for native-comp, add arity meta-test
Re-enabling native-comp surfaced a suite-wide fragility. When a test redefines a C primitive (or a native-compiled function), native-comp routes native callers through a trampoline that calls the mock with the primitive's maximum arity. A fixed-arity mock narrower than the primitive then throws wrong-number-of-arguments, intermittently, as the eln-cache fills.
I swept every arity-narrow subr mock to append &rest _ (188 sites, preserving any named args the body uses), and added tests/test-meta-subr-mock-arity.el, which fails make test on any subr mock too narrow for the primitive's arity. The rule isn't "never mock a subr". The suite mocks message and completing-read freely. It's "a subr mock must accept the primitive's arity."
Background, the three failure modes, and the research are in docs/native-comp-subr-mocking.org.
Diffstat (limited to 'tests/test-video-audio-recording-check-ffmpeg.el')
| -rw-r--r-- | tests/test-video-audio-recording-check-ffmpeg.el | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tests/test-video-audio-recording-check-ffmpeg.el b/tests/test-video-audio-recording-check-ffmpeg.el index 5c264b64..1d8f1324 100644 --- a/tests/test-video-audio-recording-check-ffmpeg.el +++ b/tests/test-video-audio-recording-check-ffmpeg.el @@ -20,7 +20,7 @@ (ert-deftest test-video-audio-recording-check-ffmpeg-normal-ffmpeg-found-returns-t () "Test that function returns t when ffmpeg is found." (cl-letf (((symbol-function 'executable-find) - (lambda (cmd) + (lambda (cmd &rest _) (when (equal cmd "ffmpeg") "/usr/bin/ffmpeg")))) (let ((result (cj/recording-check-ffmpeg))) (should (eq t result))))) @@ -30,13 +30,13 @@ (ert-deftest test-video-audio-recording-check-ffmpeg-error-ffmpeg-not-found-signals-error () "Test that function signals user-error when ffmpeg is not found." (cl-letf (((symbol-function 'executable-find) - (lambda (_cmd) nil))) + (lambda (_cmd &rest _) nil))) (should-error (cj/recording-check-ffmpeg) :type 'user-error))) (ert-deftest test-video-audio-recording-check-ffmpeg-error-message-mentions-pacman () "Test that error message includes installation command." (cl-letf (((symbol-function 'executable-find) - (lambda (_cmd) nil))) + (lambda (_cmd &rest _) nil))) (condition-case err (cj/recording-check-ffmpeg) (user-error |