Files
secs-gem/PROOFS.md
T
raphael b031f057af docs: customer-ready sweep + README restructure + tshark CI fix
Audit pass over the public-facing surface so a customer can read it
end-to-end without tripping on stale numbers or self-contradictions.

README + docs accuracy:
- Test counts 426 → 445, assertions 2 557 → 2 753 (verified via
  doctest run); E5 row was missing test_e5_kat (19 cases)
- Interop checks 24 → 31, COMPLIANCE.md message count 149 → 164,
  COMPLIANCE.md "291 cases / 1515 assertions" → 445 / 2 753
- README "60+ test IDs" for MES_INTEROP → actual 59
- PVD example counts: 32 SVIDs/17 CEIDs → 29/21, "~40 handlers
  in ~200 lines" → 51 in ~460, "~700 lines" → ~1,100; main.cpp
  header table-of-contents resynced with the actual 7 sections

Out-of-scope honesty (COMPLIANCE.md §8 + FAQ.md):
- Removed HSMS-GS (was both  implemented in §1 and "out of scope"
  in §8; INTEGRATION.md §7 documents using it)
- Removed multi-block SECS-I (split_message/assemble_message exist
  with 4 dedicated tests)
- Added serial-port wiring as the genuine open  item — FSM is
  tested end-to-end over TCP; only the asio serial_port glue is
  deferred
- COMPLIANCE.md intro now lists E42 and notes "E37 (SS + GS)"

README restructure:
- Moved the 8-command proof table and per-standard test-coverage
  table to a new PROOFS.md (72 lines)
- README now leads with what / Quick start / Documentation map,
  then a one-paragraph "How it's proved" linking to PROOFS.md
- Updated cross-refs in FAQ.md, GLOSSARY.md, VERIFICATION.md, and
  interop/README.md to point at PROOFS.md

CI fix — tshark-dissector job:
- interop/tshark_validate.sh hardcoded /app/build/secs_server etc.
  which only works inside the docker image.  Now derives ROOT from
  the script's own location and accepts BUILD/SERVER/CLIENT/DATA
  env overrides, so CI can run it from the workspace dir
- Verified still passes in docker (69 frames, 0 malformed)

.gitignore:
- Added build-fuzz/ and build-tsan/ (were showing as untracked)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-06-09 18:59:17 +02:00

6.9 KiB

Proof of feature-completeness

"Feature-complete" is a claim that the code must prove, not the README. These eight commands are the proof. If they all exit zero on a fresh clone, the codebase implements what COMPLIANCE.md claims.

# Command What it proves
1 docker compose run --rm tests 445 test cases / 2 753 assertions pass: every store, FSM, codec, parser, persistence path
2 docker compose run --rm builder /app/build/secs_conformance --host server --port 5000 47 wire-level conformance checks PASS against a live passive equipment
3 docker compose run --rm interop python3 /app/interop/host_vs_cpp_server.py --host server 31 interop checks PASS against secsgem-py 0.3.0 (the Python reference impl)
4 SECSGEM_ROBUSTNESS_SOAK=1 docker compose run --rm builder /app/build/secsgem_tests -tc='*soak*' 100 000 random tool operations execute with all invariants and persistence round-trips holding
5 docker compose run --rm builder /app/build/secs_server --validate-config --config /app/data/equipment.yaml --state-table /app/data/control_state.yaml --pj-state-table /app/data/process_job_state.yaml --cj-state-table /app/data/control_job_state.yaml Every shipped YAML config passes structural + referential validation
6 docker compose run --rm builder bash /app/interop/tshark_validate.sh 69 HSMS frames dissected by Wireshark's HSMS dissector (independent third codec) with no malformed packets
7 bash interop/secs4j_validate.sh 55 cross-validation checks PASS against secs4java8 (independent Java implementation), covering S1/S2/S3/S5/S6/S7/S10/S14/S16, the full E40 PJ body, dynamic event reports + unsolicited S6F11 / S5F1 observation, alarm management, spool, PP management, terminal services, limits, trace, E39, and the GEM 300 streams secsgem-py couldn't easily drive
8 cmake -B build-fuzz -DSECSGEM_FUZZ=ON && build-fuzz/fuzz_secs2_decode -max_total_time=60 200 000+ random inputs through secs2::decode, 1.4 M+ through try_parse_sml per 60 s lane, ASan + UBSan + libFuzzer coverage, 0 crashes

Plus, on every push to main, Gitea Actions runs both a Release build + full test suite and a separate ThreadSanitizer lane that builds with -fsanitize=thread and fails on any race. All 445 cases / 2 753 assertions pass under TSan clean.

Per-standard test coverage

Every claimed standard has dedicated tests. Counts are grep -c TEST_CASE; cross-cutting tests (e.g. test_robustness_fuzz, test_gem300_scenario) exercise multiple standards in concert.

Standard Test files Cases
E5 — SECS-II encoding test_secs2, test_sml, test_messages, test_e5_kat, test_identifier_wildcards, test_fuzz 139
E5 §13 — exceptions test_exceptions, test_exception_persistence 16
E4 — SECS-I transport test_secsi, test_secsi_timers, test_secsi_tcp 27
E37 — HSMS (SS + GS) test_hsms, test_hsms_connection, test_hsms_timers, test_hsms_s9, test_hsms_gs, test_hsms_gs_integration, test_s9_fallback, test_concurrency 34
E30 — GEM core test_control_state, test_communication_state, test_host_handler, test_data_model, test_loader, test_config_validate 71
E40 — process jobs test_process_jobs 21
E94 — control jobs test_control_jobs 9
E42 — formatted PP test_e42_formatted_pp 6
E87 — carriers + load ports test_carriers, test_carrier_state, test_carrier_persistence, test_e87_wire_scenarios 27
E90 — substrate tracking test_substrates, test_substrate_persistence 21
E116 — EPT test_ept 7
E120 / E39 — common equip / object service test_cem_objects 3
E157 — module process tracking test_modules 5
E84 — parallel I/O + timers test_e84, test_e84_ports, test_e84_timers, test_e84_asio_timers 27
Persistence + cross-cutting test_job_persistence, test_persistence_upgrade, test_wire_ceid_emission, test_gem300_scenario, test_live_gem300, test_thread_safety, test_metrics_prometheus, test_robustness_fuzz 32
Total 445

A single command to see this live: docker compose run --rm builder /app/build/secsgem_tests --list-test-cases | wc -l (currently 445).

What each proof actually demonstrates

The eight commands above split into four kinds of evidence:

  • Internal (#1, #2, #4, #5) — our code testing our code: unit suite, conformance harness, soak property test, config validator. Necessary but not independent.
  • External, second implementation (#3, #7) — round-trip against secsgem-py 0.3.0 (Python) and secs4java8 (Java). Two independent SECS implementations must agree with us on every frame.
  • External, third codec (#6) — Wireshark's HSMS dissector, written by network-protocol authors who don't share code with either of us. Catches framing bugs the implementations might both share.
  • External, structural search (#8) — libFuzzer + ASan + UBSan exploring the decoder and SML parser surface for crashes, memory errors, and UB.

See VERIFICATION.md for the full test plan and the rationale for each external validator.