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test: property-based tests for protocol-shaped code (RFC 001)

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Adds fast-check + one tests/properties.spec.ts per protocol-shaped package
(llm/BlockAssembler, session, tools/schema DSL, agent-loop scheduling). The
tools suite includes the RFC 001<->005 composition property (generated args
satisfying a spec pass validateArgs), closing the validator/InferArgs drift
risk from ADR 0011. Loop properties are deterministic (settle on agent/status,
no sleeps).

The BlockAssembler suite found a real bug on first run: a duplicate block-end
at the same index overwrote an already-flushed block, so the streamed prefix
disagreed with final blocks(). Fixed (first close wins, matching the existing
straggler rule) + regression test. Graduates RFC 001 -> ADR 0013.
This commit is contained in:
Tianyi Cui
2026-06-14 00:06:25 +08:00
parent 89e63f1436
commit 2f6d3b8539
12 changed files with 601 additions and 2 deletions
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docs/rfc/001-property-based-testing.md
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# RFC 001: Property-based testing for protocol-shaped code
Status: proposed
Status: implemented — see [ADR 0013](../adr/0013-property-based-testing.md). (It found a real BlockAssembler duplicate-`block-end` bug on first run.)
## Problem

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docs/rfc/README.md
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@@ -4,7 +4,7 @@ Proposals for substantial future work — reviewed before implementation, unlike
| # | Title | Status |
|---|---|---|
| [001](001-property-based-testing.md) | Property-based testing for protocol-shaped code | proposed |
| [001](001-property-based-testing.md) | Property-based testing for protocol-shaped code | implemented |
| [002](002-mutation-testing.md) | Mutation testing as the coverage counterweight | proposed |
| [003](003-deterministic-and-stress-testing.md) | Deterministic tests + replay invariant fixture + race stress | proposed |
| [004](004-architectural-conformance.md) | Architectural rules: dependency-cruiser, adapter conformance kit | proposed |