The test counted "heater rise" in the last 300 lines of the forgectrl log before the job, then waited for the count to grow. A tail of fixed length cannot show that: the new verdict line comes in at the bottom as an old one leaves at the top, the count does not move, and a check that verified reads as one that never judged. Seen on the bench reference in campaign c-20260919210959-8780: the engine logged "coolant flow verified (heater rise 11.5 C, dT 9.5 C; laser 1.6 off 13.1)" at 21:37:46, 70 s into the job and inside the wait, and the test failed at 21:39:21 with "the engine published no flow verdict within 120 s". The 21:17:27 verdict of an earlier test sat near the top of the 300-line tail when the test began. Replayed against that log, the old method reads 4 before the job and 4 with the new verdict in the tail; the search from the byte offset finds the 21:37:46 line. The test now takes the log's byte offset before the job (_log_offset, as the fail-tier and liveness tests do) and searches what the file gained since with the verdict expression, stopping only on a line that matches. _log_since reads a file that is now shorter than the offset from its start: a rotation under the test leaves only newer lines. The /logs/tail helper and its line count are gone with their one user. Proven: tests/test_cooling_suite.py FlowVerdictLogTests - the text after the offset alone, the real verdict line through the expression, an old verdict before the offset not taken for the new one, a rotated log read whole, a missing log read as nothing; the cooling host tests pass under Linux, 24 tests. No component source changed, so no pin moves.
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
the Acceptance page of the documentation site.
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> 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, /data/forgefirm/panel.token |
forgectrl client (HTTP; the token authorizes writes from the board) |
FORGECTRL_TLS_URL |
https://127.0.0.1 |
forgectrl over HTTPS (self-signed, unverified), for the login test |
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, mode (the controller
mode the test needs; the runner switches to it first), 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.