Bench (image 20260817124714): motion.lid-cancel-home FAILED on a machine that did the right thing twice. Both phases logged the cancel, the reset banner and "returned to the job start" with grbl drift 0.000, and the counters ended at the true rest position - but the hold phase's REFERENCE was 2.87 mm off, so the comparison measured a transient. The reference was sampled straight after the jogs that close the running phase, and those wait on grblHAL's Idle. grblHAL is Idle when its planner is empty; the kernel is still playing the stream depth and the decel tail behind that. A counter read in that window records a position the head is only passing through - and the resulting drift reads exactly like the failure this check exists to catch, a move counted by grbl but never played by the machine. So the check stays as strict as it is (it is the one that caught the stranded ring on 2026-08-17): what changes is where the reference comes from. kernel_start() waits for the MACHINE to be idle - the helper the motion tests already end on - before reading the counters, and every reference capture in the lid, interlock and live cancel tests goes through it.
forgetest - the ForgeFIRM release acceptance tool
The daemon behind http://<machine>:8090/ on the dev image: runs the
acceptance catalog against the machine, keeps the append-only result log,
decides which results still apply to the image that is running, exports
the release artifact scripts/release.sh gates on, and serves the bench
diagnostics page. The contract - catalog, campaigns, fingerprints,
inheritance, the gate, the coverage rule - is
docs/ACCEPTANCE.md.
Run the host tests
cd forgetest
python3 -m unittest discover -s tests -v
Run the daemon on a workstation (against a mock or a manifest file)
FORGETEST_DATA=/tmp/ft FORGETEST_MANIFEST=../tree-manifest.json \
FORGECTRL_URL=http://<machine>:8080 python3 -m forgetest --port 8090
scripts/manifest-from-tree.py produces tree-manifest.json from the recipe
pins; the coverage lint is python3 -m forgetest.coverage --manifest ....
Environment
| Variable | Default | Purpose |
|---|---|---|
FORGETEST_DATA |
/data/forgetest |
results.jsonl, bench.jsonl, token, export/ |
FORGETEST_MANIFEST |
/etc/forgefirm-manifest.json |
the image manifest |
FORGETEST_PORT, FORGETEST_HOST |
8090, 0.0.0.0 | listener |
FORGETEST_BENCH_DIR |
/usr/share/forgetest/bench |
the installed bench scripts |
FORGETEST_BENCH_DATA |
<FORGETEST_DATA>/bench |
passed to bench tools: where they keep their data files (with GF_HOST=127.0.0.1 and the panel token in GF_TOKEN) |
FORGETEST_MARKER |
/run/forgetest.active |
takeover marker |
FORGECTRL_URL, FORGECTRL_TOKEN_FILE |
http://127.0.0.1:8080, /data/forgefirm/panel.token |
forgectrl client |
GF_SYSFS_ROOT |
/sys/glowforge/ |
kernel module sysfs |
GRBL_HOST, GRBL_PORT |
127.0.0.1, 23 | Grbl TCP |
Adding a test
Register it in the subsystem module under forgetest/suite/ with
@test(...): id subsystem.name, kind, hardware, covers, requires,
always, steps. The body gets a Context (log, check, fail,
prompt, confirm, instruct, sleep, evidence, forgectrl, sysfs,
grbl, takeover). Return normally for PASS, raise runner.Failed for
FAIL. Then run the unit tests and the coverage lint.