The Manjaro workspace job failed test-unit-ruby with "cannot load such
file -- minitest". Debian vendors minitest in libruby, but Arch ships it
as ruby-minitest and Fedora and CentOS Stream as rubygem-minitest, none
of which ruby pulls in. ensure_ruby_present now probes
`require "minitest"` and installs the distro package when the probe
fails, then fails loudly if minitest is still missing.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
test-unit-php and test-unit-ruby exited 0 whenever the interpreter or the
vendor tree was missing, so both suites were silently absent from every
gate. They now provision their toolchain through install-php/install-ruby
and fail loudly when that is impossible.
The three ensure_*_present helpers collapse into ensure_command_present
in system_pkg, and the ruby runner rejects an empty suite because
minitest reports success when nothing was required.