test: DFG Re20 provenance refuses dirty trees; versioned receipts

Per review of aceea70e: a dirty checkout is refused (HEAD would not
describe the code that runs, and a dirty-to-dirty edit would pass the
end-of-run check). On a clean tree HEAD pins the imported helpers too.
plan.json and result.json carry schema=2; schema-1 receipts (bare list,
e.g. evidence 70f6617) are documented. Adds a dirty-refusal test.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Claude
2026-10-20 18:28:25 +00:00
co-authored by Claude Opus 5.5
parent 8064834c37
commit 2220cdd157
3 changed files with 22 additions and 5 deletions
+3
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@@ -46,4 +46,7 @@ CUDA_VISIBLE_DEVICES=<n> python tests/validation/run_dfg_re20.py --case both \
The uniform D80 control separates method error from refinement error. `--plan` writes `plan.json` only. A GPU run writes `plan.json` and `result.json`
(per case: lattice parameters, every sample, window ranges, status, verdict).
Receipts: `plan.json` and `result.json` carry `schema` 2 and `provenance` (HEAD, src tree,
runner hash; clean checkout required, refused if it changes during the run). Receipts
written before this (schema 1, e.g. evidence 70f6617) are a bare list of cases.
Host contract tests: `tests/unit/test_dfg_re20.py`.