Run focused PHPUnit coverage and the repository's source-quality checks for changed code.
Payload-codec fixes also follow the organization
regression-corpus contract.
Add the smallest cross-language wire fixture under
tests/Fixtures/CodecRegression/.
Fixtures are append-only and preserve protocol version, value and type, framing, and stable failure policy. Run:
python scripts/ci/validate-regression-corpus.py --base-ref <target>The server's PHPUnit codec corpus runner derives its fixture globs from
regression-corpus-policy.json. New portable codec-regression-v1 selectors
therefore join the PHP execution inventory automatically. Formats without an
official PHP executor are rejected by corpus validation and cannot contribute
guarded growth.
A server codec-boundary fix also needs an append-only counterfactual proof under
tests/Fixtures/CodecRegressionProofs/. The proof pairs each new codec fixture
with one changed boundary path and a changed Feature PHPUnit test. The test
uses ServerCodecRegressionFixtureExecutor::exercise() exactly once. That shared
executor invokes a zero-argument proof callback. For each counterfactual source
snapshot, validation embeds the selected fixture in the claimed boundary and
routes its official PHP codec calls through a stateless proxy. The validator
requires the proxy's per-run boundary attestation, while proof adapters that
read verifier input, mutate verifier state, branch, or dispatch dynamically are
rejected. Complete source qualification runs the proof against the candidate,
the target revision, a causality sentinel, and a candidate with only that
boundary reverted.