alkblobs/tasks/suite-scaffold.md at 79cf1f0220bfde5cd2db06642174a43643b04c45

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glm-5.3-flash 327b952e4d feat(tests): the conformance suite's home — conventions, invariant backlog, harness skeleton (wave 1)

- tests/conformance/README.md: the convention doc — row naming (property-
  stated names, engine dimension is the column), the Contract stamp:
  format (the alkstore ADR-017 §4.2 convention adapted), the one-
  normative-owner-per-property rule, the factory contract (fresh
  isolated instance per open, idempotent teardown, safe over an
  abandoned instance), the SKIP posture (SQL-attached columns skip
  cleanly server-less; acceptance requires green against the server),
  the invariant backlog (the seven store-api.md §Invariants registered
  as the rows-to-grow table with pinning citations), and the mem-first
  column plan (mem is the contract-reference engine, ADR-011 §2)
- harness skeleton, compile-able with zero rows: StoreFactory (fresh
  + isolated + idempotent-teardown contract; the Store associated type
  is wave 2's binding point for the facade type), stamp.rs (the
  marker + convention anchor), backlog.rs (in-code registry with a
  traceability gate asserting INV-1..7 mirror §Invariants in order)
- no engine-specific code; no dependencies added

Verification: cargo test (33 passed across lib + 3 targets),
cargo clippy --all-targets -- -D warnings, cargo fmt --check

2026-10-11 18:44:04 +00:00

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Description

Establish tests/conformance/ — the in-crate conformance harness home (decided point: engines are features of one crate, so the suite lives in-crate, factory-parameterized over engine constructors; the alkstore ADR-017/022 pattern adapted) — with the convention that waves 2–6 grow columns against:

The convention document (a tests/conformance/README.md or module doc): row naming, the ADR-stamp format (every row cites the ADR § / spec § that pins it — the alkstore version-stamping convention), the one-normative-owner-per-property rule, and the factory contract: each factory opens a fresh, isolated store instance (no shared state between rows) with idempotent teardown; engine factories for SQL engines skip cleanly when no server is reachable (the alkstore SKIP posture) while acceptance requires green against the server.
The invariant backlog: store-api.md's seven invariants registered as the rows-to-grow table (round-trips per engine/tier/ put-path; dedup; stage hygiene; sweep safety incl. the engine-gated fleet form; list-correctness-through-sweep-outcomes; stat-without- content; engine-conformance uniformity) — each row's first column lands with the mem engine in wave 2 (mem is the contract-reference engine; every other engine's rows mirror its column).
The harness skeleton: the factory trait shape and the row registration structure, compile-able as a stub (the Store facade type arrives in wave 2 — the skeleton pins the shape, wave 2's first column binds it; if binding reveals a shape correction, that is wave 2's to make and record).

This task is deliberately convention-first: the harness shape is easier to grow row by row as engines land than to retrofit onto five finished engines (the alkstore wave-1 rationale, which applies identically here).

Acceptance Criteria

tests/conformance/ exists with the convention doc (row naming, ADR-stamp format, one-owner rule, factory isolation + teardown contract, SKIP posture)
The invariant backlog table registered, traceable to store-api.md's seven invariants, with the mem-first column plan noted
The harness skeleton compiles (cargo test green — a stub with no rows yet is acceptable and expected)
No engine-specific code; the task adds no dependencies

References

docs/architecture/store-api.md (§Invariants — the test gate)
docs/architecture/backends-and-dispatch.md (§Per-engine conformance; POC #7 gate as the norm)
/workspace/@alkdev/alkstore/docs/plans/implementation.md (wave 1 + wave 5 sections — the convention's source pattern)
docs/plans/implementation.md (Decided points — suite home)

Notes

The convention doc landed as tests/conformance/README.md (normative home) with the in-code anchors: stamp.rs (the Contract stamp: marker, alkstore ADR-017 §4.2 adapted), factory.rs (the StoreFactory shape + contract), backlog.rs (the backlog as an in-code registry with a traceability gate).
The skeleton's wave-2 binding point: StoreFactory::Store is an associated type placeholder for the Store facade type (which arrives in wave 2 — no public type exists to bind today). Wave 2's mem column binds it; a binding-revealed shape correction is wave 2's to make and record in README + factory.rs, per the task text.
SKIP posture is pinned as convention text (README §SKIP posture + factory.rs docs) rather than typed machinery: the mechanism lands with the first column that needs it (postgres, wave 4). Mem/sqlite/ local never skip.
The backlog table cites per-entry: restated invariant, planned row family, pinning texts (spec §/ADR §), first column/wave. INV-4's fleet form is recorded as its own engine-gated family (wave 6).
Harness self-checks (4 tests): backlog traceability (order mirrors store-api.md §Invariants 1–7, every field populated), stamp marker identity, and a probe factory proving the trait is implementable with async methods (the alkstore exemplar-against-mock posture, sized to the no-rows state). No engine-specific code; no dependencies added.

Summary

tests/conformance/ established: README.md (row naming, stamp format, one-owner rule, factory isolation + idempotent-teardown contract, SKIP posture, the seven-invariant backlog table traceable to store-api.md, mem-first column plan), plus the compile-able skeleton (factory trait, stamp module, backlog registry) with zero rows as expected. Verified: cargo test (33 total across lib + 3 targets), cargo clippy --all-targets -- -D warnings, cargo fmt --check all green.

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