test(core): prove authored helper and loop mutation evidence by flyingrobots · Pull Request #207 · flyingrobots/edict

flyingrobots · 2026-09-08T02:15:23Z

Plain-English Walkthrough

TL;DR

Complete #192's remaining mutation-evidence criterion with four tests through public lawpack authoring, source compilation, and artifact boundaries. A valid helper-body change reaches Core and supported Target identity after exact repinning; an independent loop-body change reaches Core identity. [claim:authored-mutations, confidence:1.00]

This is an evidence-only change. Production Rust, formal language and ABI specifications, CDDL, dependencies, and generated artifacts are unchanged. [claim:evidence-only, confidence:1.00]

Walkthrough

The previous evidence covered conditional and loop-bound changes, but did not follow a valid authored helper-body change through the exact lawpack closure or isolate a loop-body change with the iterable and bound held fixed. The new witnesses use the public authoring API and CLI, then consume their emitted manifest, exports, and adapter. They do not fabricate accepted digest fields inside an already-built artifact. [claim:public-input-path, confidence:1.00]

Change	Expected and observed result
Helper result `7` → `8`, same coordinate and signature	Exports and manifest bytes/digests change; adapter stays identical. Old-manifest/new-exports rejects with `ExportsDigestMismatch`. A valid new bundle paired with the old source pin rejects with `SourceImportMismatch`. Repinning changes Core and Target bytes/digests while the application intent remains identical.
Conditional alternate result `0u64` → `1u64`	Core and Target bytes/digests change while imported lawpack identity stays fixed.
Loop bound `4` → `5`	Core bytes/digest change while the iterable and loop body stay fixed.
Loop predicate `item <= 10u64` → `item <= 11u64`	Core bytes/digest change while iterable, bound, declarations, imports, and return stay fixed.

These are deterministic paired comparisons, with repeated identical authoring and compilation controls. [claim:deterministic-controls, confidence:1.00]

The CLI witness authors and builds an external consumer, changes the actual helper body, and verifies the stale pin produces InvalidApplicationClosure. Prior output stays byte-identical; with no prior output directory, the failure creates none. After repinning, both emitted artifacts change. [claim:cli-repinning, confidence:1.00]

The loop boundary remains explicit: source loops compile to Core, but the current Target lowerer returns UnsupportedCoreNode at the loop and emits no artifact. The new test asserts the structured kind, intent, node index, and absence of an artifact for the original and both loop mutations. This closes compiler identity evidence without claiming loop packaging, evaluation, a provider package, or a runtime receipt. [claim:loop-target-limit, confidence:1.00]

Owning compiler-spine, lawpack-authoring, and Target IR evidence maps now point to these witnesses. The authoring guide explains the repinning consequence. Determinism obligations distinguish direct API tests, canonical artifact comparisons, and structured CLI protocol witnesses. No language capability or application-specific runtime vocabulary is added. [claim:docs-scope, confidence:1.00]

RED/GREEN evidence

The new valid specimens pass against the existing production code; no compiler defect was demonstrated. RED was calibrated with four temporary production faults, each restored before GREEN: normalize the helper result to 7; omit Core import identity; discard the checked loop body; skip source-pin corroboration. All four were caught by assertion failures (five failing test executions, exit 101, including both API and CLI source-pin witnesses). The durable calibration recipe and precise oracles are in docs/topics/lawpack-authoring/test-plan.md#53@19ccbccf5bbe391a055a5ac04b2fd9912c9a8971. [claim:calibrated-red, confidence:1.00]

Focused GREEN commands:

cargo test -p edict-syntax --test lawpack_authoring authored_
# 3 passed
cargo test -p edict-cli --test lawpack_authoring_cli public_build_requires_repinning_an_authored_helper_body_change
# 1 passed

Full validation at the signed committed head 19ccbccf5bbe391a055a5ac04b2fd9912c9a8971:

cargo xtask verify: passed; 902 tests across 51 result groups, strict all-target/all-feature Clippy, fixture and golden checks, 27 topic shelves.
cargo deny check advisories bans licenses sources: passed.
git diff origin/main...HEAD --check: passed.

The release-date checker retains its existing first-alpha uncovered-policy report and exits successfully; this batch changes no release policy. Hosted exact-head CI 34180126556 passed all five jobs at 19ccbccf. CodeRabbit independently marked both documentation findings addressed and resolved. The final scoped Codex review found no major issues at 19ccbccf5b. The superseded CodeRabbit change-request submission was dismissed with evidence; complete pagination shows zero unresolved threads and GitHub reports a clean, mergeable PR. The PR remains open for a separate merge decision. [claim:validation, confidence:1.00]

Appendix: Citations

Claim	Evidence	Confidence	Notes
`claim:authored-mutations`, `claim:public-input-path`, `claim:deterministic-controls`	`crates/edict-syntax/tests/lawpack_authoring.rs#291@19ccbccf5bbe391a055a5ac04b2fd9912c9a8971`; tests `authored_helper_body_mutation_moves_compiled_identity_or_rejects_stale_pins`, `authored_consumer_branch_mutation_moves_compiled_identity`, `authored_consumer_loop_mutations_move_core_identity_before_target_rejection`	1.00	Public authoring, decoding, preparation, compilation, canonical encoding and digest APIs.
`claim:cli-repinning`	`crates/edict-cli/tests/lawpack_authoring_cli.rs#84@19ccbccf5bbe391a055a5ac04b2fd9912c9a8971`; `public_build_requires_repinning_an_authored_helper_body_change`	1.00	Real CLI subprocess, generated closure, repeated builds, stale pin, existing and absent outputs, repinning.
`claim:loop-target-limit`	`crates/edict-syntax/tests/lawpack_authoring.rs#497@19ccbccf5bbe391a055a5ac04b2fd9912c9a8971`	1.00	Typed Target refusal is part of the executable oracle.
`claim:calibrated-red`	`docs/topics/lawpack-authoring/test-plan.md#53@19ccbccf5bbe391a055a5ac04b2fd9912c9a8971`; focused commands above, five observed assertion failures under isolated faults	1.00	Temporary faults are absent from this commit; they are not baseline defects.
`claim:docs-scope`	`docs/topics/compiler-spine/test-plan.md#119@19ccbccf5bbe391a055a5ac04b2fd9912c9a8971`; `docs/topics/lawpack-authoring/test-plan.md#16@19ccbccf5bbe391a055a5ac04b2fd9912c9a8971`; `docs/topics/target-ir/test-plan.md#172@19ccbccf5bbe391a055a5ac04b2fd9912c9a8971`	1.00	Updated evidence for existing contracts.
`claim:evidence-only`, `claim:validation`	`git diff 3f81f759e921a69b04fe8cf8e62e62f8f3dc7b7e...19ccbccf5bbe391a055a5ac04b2fd9912c9a8971`; exact commands and observed results above	1.00	Seven changed files: two test files and five owning topic documents. No production or dependency delta.

Closes #192

chatgpt-codex-connector · 2026-09-08T02:15:32Z

Codex Review Summary

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-08T02:33:45.587042Z	`19ccbcc`	Manual request

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coderabbitai · 2026-09-08T02:16:07Z

Summary by CodeRabbit

Bug Fixes
- Authored helper changes now correctly update generated lawpack, Core, and supported Target identities after repinning.
- Stale application pins are rejected with clear diagnostics, while failed builds preserve previously generated outputs.
- Source changes in conditionals and helper bodies now produce distinct compiled artifacts.
Documentation
- Expanded compiler and lawpack authoring guidance for semantic mutations, identity changes, repinning, and stale-pin behavior.
- Documented current Target IR limitations for loop constructs.
Tests
- Added coverage for deterministic rebuilds, mutation detection, repinning, artifact preservation, and unsupported loop lowering.

Walkthrough

The PR adds compiler and CLI tests for authored helper and consumer mutations. The tests verify deterministic artifacts, digest-bound stale-pin rejection, changed Core and Target identities, preserved failed-build outputs, and current rejection of bounded loops. Documentation records the evidence and requirements.

Changes

Authored semantic mutation

Layer / File(s)	Summary
Compiler mutation witnesses `crates/edict-syntax/tests/lawpack_authoring.rs`	Adds helpers and tests for authored helper mutations, consumer branch mutations, deterministic compilation, digest changes, stale-pin errors, and `UnsupportedCoreNode` loop rejection.
CLI stale-closure validation `crates/edict-cli/tests/lawpack_authoring_cli.rs`	Adds end-to-end coverage for mutated lawpack publication, repeated builds, stale closure diagnostics, unchanged failed-build outputs, and changed compiled artifacts.
Mutation coverage documentation `docs/topics/compiler-spine/`, `docs/topics/lawpack-authoring/`, `docs/topics/target-ir/test-plan.md`	Documents authored semantic mutation requirements, test evidence, mutation calibration, identity propagation, stale-pin rejection, and the current Target loop boundary.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Merge Risk: 🔵 Low · up to c0a97

The tests remain valid, but two test-plan rules inaccurately describe the permitted evidence. Correct these bounded documentation inconsistencies before or shortly after merge.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 41.18% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 17 functions across 2 files. (5 skipped: …	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	The pull request addresses issue `#192`'s remaining mutation-evidence criterion. It tests helper-body, conditional, loop-bound, and loop-body mutations, stale-pin rejection, deterministic artifacts, and…
Out of Scope Changes check	✅ Passed	The changes are limited to compiler and CLI tests plus related documentation. They support issue `#192` and do not add production behavior, runtime semantics, provider functionality, dependencies, or un…
Title check	✅ Passed	The title clearly identifies the main change: tests that prove authored helper and loop mutation evidence. It is concise and specific.
Description check	✅ Passed	The description directly explains the mutation tests, stale-pin rejection, artifact identity checks, CLI behavior, loop Target limitations, documentation updates, and validation results. It is fully r…

Full details: Docstring Coverage

Explanation

Docstring coverage is 41.18% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 17 functions across 2 files. (5 skipped: 5 unsupported.)

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_{Helper hashes shift in the light
Old pins stumble, new pins write
Core identities change their tune
Loops meet a guarded moon
Determinism keeps watch at night}

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Actionable comments posted: 2

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Inline comments:
In `@docs/topics/compiler-spine/test-plan.md`:
- Line 119: Update the determinism obligation in the CSPINE-TP-040 test-plan
entry to permit deterministic comparisons of canonical artifact bytes and
digests, matching
authored_helper_body_mutation_moves_compiled_identity_or_rejects_stale_pins.
Remove the contradictory statement that tests inspect only structured Rust
values while preserving the existing scope.

In `@docs/topics/target-ir/test-plan.md`:
- Line 172: Update the TIR-TP-068 evidence and its associated obligation to
resolve the stdout/stderr determinism mismatch: either limit the obligation to
direct Target IR tests or explicitly allow deterministic JSONL diagnostic
assertions from CLI stderr. Preserve the existing test references and evidence
scope, including public_build_requires_repinning_an_authored_helper_body_change.

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crates/edict-cli/tests/lawpack_authoring_cli.rs
crates/edict-syntax/tests/lawpack_authoring.rs
docs/topics/compiler-spine/README.md
docs/topics/compiler-spine/test-plan.md
docs/topics/lawpack-authoring/README.md
docs/topics/lawpack-authoring/test-plan.md
docs/topics/target-ir/test-plan.md

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