My Emacs configuration https://git.cjennings.net/dotemacs/atom?h=main 2026-05-25T22:00:15+00:00 2026-05-25T22:00:15+00:00 Craig Jennings c@cjennings.net 2026-05-25T22:00:15+00:00 urn:sha1:c83b13ea891d034190b7b8582ce45f2bfaf84f40 system-defaults.el had no coverage for its settings, only its functions (in test-system-defaults-functions.el) and the vc-follow-symlinks default. I added three settings smoke tests: custom-file is redirected to a temp trashbin rather than the repo, backups land under user-emacs-directory/backups, and the minibuffer GC hooks are actually wired onto the minibuffer hooks. I pulled the sandbox loader the vc-follow-symlinks test had inline into tests/testutil-system-defaults.el so both files share one copy. The backups test clears cj/backup-directory before loading — it's a defvar, so once an earlier test loads the module it keeps that first sandbox path and won't recompute, which made the assertion fail until I forced the recompute.